{"title":"SO-ARM101 Training Loop","description":"\u003cp\u003eMid-price products that close the first LeRobot training loop: arm kits, wooden training props, cameras, clamps, builder hardware, and power.\u003c\/p\u003e","products":[{"product_id":"so-arm101-lerobot-robot-arm-kit","title":"SO-ARM101 Robot Arm Kit for Hugging Face LeRobot, 6-Axis Leader + Follower Arms, 30 kg·cm Bus Servos, Dual Cameras (Hiwonder)","description":"\u003cp\u003e\u003cstrong\u003eThe SO-ARM101 is a low-cost, open-source 6-axis desktop robot arm kit built for Hugging Face LeRobot: you move a leader arm by hand, an identical follower arm copies it, the cameras record what happened, and that data trains an imitation-learning policy (ACT, Diffusion Policy, Pi0, SmolVLA) so the follower arm can do the task on its own.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit gives you a complete leader–follower pair of SO-101 arms, the 12 V bus servos, the USB servo boards and the power supplies needed to record teleoperation demonstrations and train an imitation-learning policy with Hugging Face LeRobot. Assembled kits are built, wired and calibrated at our Singapore workshop and arrive ready to plug into a laptop; the DIY kit ships every component except the 3D-printed arm parts, which you print from the open-source STL files.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eImitation learning and VLA (vision-language-action) research on a desk instead of a lab\u003c\/li\u003e\n\u003cli\u003eRecording teleoperation datasets and publishing them to the Hugging Face Hub\u003c\/li\u003e\n\u003cli\u003eTeaching embodied-AI, robotics and ML courses: one kit per bench, LeRobot tutorials included\u003c\/li\u003e\n\u003cli\u003ePick-and-place, sorting and stacking demos for portfolios, hackathons and YouTube\u003c\/li\u003e\n\u003cli\u003eTesting new policies (ACT, Diffusion, Pi0, GR00T) on real hardware before scaling up\u003c\/li\u003e\n\u003cli\u003eDual-arm bimanual manipulation experiments with the four-arm kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eML engineers and students who want to move from simulation to real robot data, university and vocational robotics labs, makerspaces, and hobbyists who want the cheapest hardware that the LeRobot community actually uses.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSoftware: Hugging Face LeRobot (so101 robot and teleop configs), Python 3.10+, Windows or Ubuntu; runs on a laptop, Raspberry Pi 5 or NVIDIA Jetson\u003c\/li\u003e\n\u003cli\u003eServos: Feetech \/ STS-compatible bus protocol; the SO-ARM101 servo set and STS3215 servos sold in this store are drop-in spares\u003c\/li\u003e\n\u003cli\u003eCameras: standard USB UVC cameras, so any OpenCV-compatible webcam can be added as an extra view\u003c\/li\u003e\n\u003cli\u003e3D files: open-source SO-101 STL \/ STEP files for the DIY kit and for printing custom grippers or mounts\u003c\/li\u003e\n\u003cli\u003ePower: 100–240 V mains adapters with 12 V 5 A output; plug type follows the destination country\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGetting started: from unboxing to your first LeRobot dataset\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eUnbox and clamp: fix each arm to the desk edge with the supplied G-clamps, plug the 12 V adapter into each BusLinker board, connect both boards to the PC over USB-C.\u003c\/li\u003e\n\u003cli\u003eInstall LeRobot: clone the lerobot repository, create a Python environment, install with the feetech extra, and find the two serial ports (one per arm).\u003c\/li\u003e\n\u003cli\u003eCalibrate: run the calibration command for the leader and follower once; the arms are pre-assembled and pre-tuned, so this takes about two minutes per arm.\u003c\/li\u003e\n\u003cli\u003eTeleoperate: launch the teleop script and move the leader arm; the follower mirrors it in real time. Add the wrist camera (Standard) and overhead camera (Advanced) to the config.\u003c\/li\u003e\n\u003cli\u003eRecord a dataset: record 30–50 episodes of one task (for example 'put the red block in the box'), then push the dataset to your Hugging Face Hub account.\u003c\/li\u003e\n\u003cli\u003eTrain and deploy: train an ACT or Diffusion policy on a GPU (Colab works), copy the checkpoint back, and run the policy so the follower arm performs the task autonomously.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHiwonder SO-ARM101 (open-source SO-101 design by TheRobotStudio \/ Hugging Face)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDegrees of freedom\u003c\/th\u003e\n\u003ctd\u003e6 per arm (5 joints + gripper); leader and follower arms are kinematically identical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eServos\u003c\/th\u003e\n\u003ctd\u003eFollower: 6 × HX-30HM 30 kg·cm 12 V bus servos; Leader: 6 × HX-10HM 10 kg·cm bus servos; 12-bit magnetic encoders, 360° position feedback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eServo protocol\u003c\/th\u003e\n\u003ctd\u003eFeetech \/ STS-compatible half-duplex TTL serial bus, 1 Mbps, natively supported by LeRobot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eController\u003c\/th\u003e\n\u003ctd\u003eBusLinker V3.0 servo bus board, USB-C to PC, 12 V DC input, one board per arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCameras\u003c\/th\u003e\n\u003ctd\u003eStandard kit: 480p wide-angle wrist camera; Advanced kit adds 1080p (2 MP) wide-angle overhead camera on a desk stand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArm material\u003c\/th\u003e\n\u003ctd\u003ePLA 3D-printed structure (white follower, black leader), metal servo horns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eLeader 111 × 239 × 525 mm, 697 g; Follower 111 × 173 × 532 mm, 704 g; camera stand 166 × 258 × 527 mm, 1178 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e2 × 12 V 5 A adapters (DC 5.5 × 2.5 mm), one per arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHost PC\u003c\/th\u003e\n\u003ctd\u003eWindows or Ubuntu, USB serial; Python \/ LeRobot; runs on a laptop, Raspberry Pi 5 or Jetson\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoftware\u003c\/th\u003e\n\u003ctd\u003eHugging Face LeRobot (ACT, Diffusion Policy, Pi0, SmolVLA, Isaac GROOT), Hiwonder PC servo tool, tutorials and 3D print files\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003ctd\u003eDIY 5.23 kg; Starter 4.33 kg; Standard 4.38 kg; Advanced 5.6 kg (512 × 240 × 225 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eStarter, Standard, Advanced and Dual-Arm kits: assembled, wired and calibrated in Singapore (HS 8479.50). Servo Set and DIY Kit: components made in China (HS 8501.10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eServo Set (12 servos + horns, no 3D-printed parts):\u003c\/strong\u003e 6 × HX-30HM 30 kg·cm 12 V bus servos, 6 × HX-10HM bus servos, 14 metal main horns, 12 metal secondary horns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Kit (all parts, print the arms yourself):\u003c\/strong\u003e 12 servos and horns as above, 2 × BusLinker V3.0 boards, 2 × 12 V 5 A adapters, 4-port USB hub, 4 × 2\" G-clamps, 2 × USB-C cables, camera desk stand, servo cables (3 × 100 mm, 5 × 160 mm, 7 × 200 mm), 2 screwdrivers, cable ties, nylon standoffs and the complete screw set; STL files for the arms are downloadable (you print them, about 1 kg of PLA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter Kit (assembled leader + follower, no cameras):\u003c\/strong\u003e 1 × assembled leader arm (black), 1 × assembled follower arm (white) with BusLinker boards fitted, 2 × 12 V 5 A adapters, 4-port USB hub, 4 × G-clamps, 2 × USB-C cables, spare servo cables, horns, cable ties, 2 screwdrivers, screw pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Kit (assembled + wrist camera):\u003c\/strong\u003e Everything in the Starter Kit plus a 480p wide-angle wrist camera with mount and 1 m USB cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Kit (assembled + wrist camera + overhead camera on stand):\u003c\/strong\u003e Everything in the Standard Kit plus a 1080p (2 MP) wide-angle overhead camera, camera desk stand, camera bracket and a second USB cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Arm Kit (2 leader + 2 follower arms + cameras):\u003c\/strong\u003e 2 × leader arms, 2 × follower arms, 4 × BusLinker boards and adapters, wrist cameras, overhead camera with stand, USB hub, clamps, cables and accessories for bimanual setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBuy parts separately\u003c\/h3\u003e\u003cp\u003eSpares and add-ons for this kit: \u003ca href=\"\/collections\/robot-arm-parts-accessories\"\u003eSTS3215 servos and 12-servo sets, STS3250 upgrade servos, metal horns, 3-pin cables, BusLinker and Waveshare adapter boards, 1080p wrist and overhead cameras, camera desk arm, G-clamps, power adapters, training cubes and the SO-101 Builder's Pack with free print files\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is the difference between the SO-ARM101 kits?\u003c\/h3\u003e\u003cp\u003eServo Set: only the 12 servos and horns, for people who already have printed parts. DIY Kit: every component except the 3D-printed arm parts, which you print from the free STL files. Starter Kit: both arms assembled and calibrated, no cameras. Standard Kit: adds the wrist camera for eye-in-hand data. Advanced Kit: adds a second, overhead 1080p camera on a stand so you record two views, which most LeRobot tutorials assume. Dual-Arm Kit: two complete leader–follower pairs for bimanual tasks.\u003c\/p\u003e\u003ch3\u003eWhich kit should I buy for LeRobot imitation learning?\u003c\/h3\u003e\u003cp\u003eThe Advanced Kit. Policies such as ACT train much better with a wrist view and a fixed overhead view, and that kit includes both cameras, the stand and all cables. If you already own a good USB webcam and a tripod, the Standard Kit is enough.\u003c\/p\u003e\u003ch3\u003eIs this compatible with Hugging Face LeRobot?\u003c\/h3\u003e\u003cp\u003eYes. The SO-ARM101 uses the open-source SO-101 geometry and Feetech-protocol bus servos, so it works with the stock LeRobot so101_follower and so101_leader configurations without code changes. Hiwonder also ships a PC tool for setting servo IDs, offsets and limits.\u003c\/p\u003e\u003ch3\u003eDo I need a GPU or a powerful computer?\u003c\/h3\u003e\u003cp\u003eTeleoperation and dataset recording run on any laptop, a Raspberry Pi 5 or a Jetson. Training a policy is faster on a GPU, but a free Google Colab session is enough for the standard ACT tutorial.\u003c\/p\u003e\u003ch3\u003eHow much can it lift and how far does it reach?\u003c\/h3\u003e\u003cp\u003eThe follower uses 30 kg·cm servos, roughly three times the torque of the 7.4 V servos in basic SO-100 builds, and comfortably handles wooden blocks, cups and small tools of a few hundred grams within its roughly 40 cm workspace. It is a learning platform, not an industrial arm.\u003c\/p\u003e\u003ch3\u003eIs it assembled and calibrated?\u003c\/h3\u003e\u003cp\u003eStarter, Standard, Advanced and Dual-Arm kits arrive assembled, wired and factory-calibrated; you clamp them to the desk, plug in power and USB and start. The DIY Kit requires printing the parts and about three to four hours of assembly following the video guide.\u003c\/p\u003e\u003ch3\u003eWhat about power plugs in my country?\u003c\/h3\u003e\u003cp\u003eEach arm needs one 12 V 5 A adapter. The adapters are 100–240 V; we ship the plug type for your shipping address, or include a travel adapter where the exact type is unavailable.\u003c\/p\u003e\u003ch3\u003eWhat documentation is included?\u003c\/h3\u003e\u003cp\u003eHiwonder's LeRobot course: hardware setup, Ubuntu and Windows environment, assembly video (for the DIY kit), calibration, teleoperation, data collection, ACT training and deployment, plus the 3D files and servo tool. Hugging Face's own LeRobot docs apply as well.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"Servo Set (12 servos + horns, no 3D-printed parts)","offer_id":50757999689967,"sku":"SOARM101-SERVOS","price":369.99,"currency_code":"USD","in_stock":true},{"title":"DIY Kit (all parts, print the arms yourself)","offer_id":50757999722735,"sku":"SOARM101-DIY","price":394.99,"currency_code":"USD","in_stock":true},{"title":"Starter Kit (assembled leader + follower, no cameras)","offer_id":50757999755503,"sku":"SOARM101-STARTER","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Standard Kit (assembled + wrist camera)","offer_id":50757999788271,"sku":"SOARM101-STANDARD","price":579.99,"currency_code":"USD","in_stock":true},{"title":"Advanced Kit (assembled + wrist camera + overhead camera on stand)","offer_id":50757999821039,"sku":"SOARM101-ADVANCED","price":640.99,"currency_code":"USD","in_stock":true},{"title":"Dual-Arm Kit (2 leader + 2 follower arms + cameras)","offer_id":50757999853807,"sku":"SOARM101-DUAL","price":1356.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_three_arms.jpg?v=1789401547"},{"product_id":"feetech-sts3215-serial-bus-servo","title":"Feetech STS3215 Serial Bus Servo, 30 kg·cm 12 V \/ 19 kg·cm 7.4 V, 360° Magnetic Encoder, for SO-ARM101, LeKiwi, OpenDuck (single or robot sets)","description":"\u003cp\u003e\u003cstrong\u003eThe Feetech STS3215 is a smart serial-bus servo with a 12-bit magnetic encoder, metal gears and 360° multi-turn position feedback that is the standard actuator of the Hugging Face SO-100 \/ SO-101 robot arms, the LeKiwi mobile manipulator and OpenDuck Mini, used wherever a project needs daisy-chained, position-feedback joints controlled from one serial port.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe STS3215 is the servo used in the Hugging Face SO-100 \/ SO-101 arms, the LeKiwi mobile manipulator and OpenDuck Mini. Buy singles to replace a joint, or pick a set that matches the exact voltage and gear-ratio mix the open-source build guides call for.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing or upgrading a joint in an SO-ARM100 \/ SO-ARM101 leader or follower arm\u003c\/li\u003e\n\u003cli\u003eBuilding an SO-101 arm from printed parts: the 12-servo set matches the official bill of materials\u003c\/li\u003e\n\u003cli\u003eLeKiwi mobile base (3 × 12 V wheel servos) or the full LeKiwi robot (base + arm)\u003c\/li\u003e\n\u003cli\u003eOpenDuck Mini bipedal robot (14 × 7.4 V servos)\u003c\/li\u003e\n\u003cli\u003eCustom robots, grippers and pan-tilt heads that need position, load and temperature feedback over one bus\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eLeRobot builders sourcing exact-spec servos, robotics students, and makers who want feedback servos that are cheaper than Dynamixel but supported by open-source software.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eControllers: BusLinker V3.0, Waveshare bus servo adapter, Feetech FE-URT-1, or any 3.3 V \/ 5 V UART with half-duplex direction control\u003c\/li\u003e\n\u003cli\u003eSoftware: Hugging Face LeRobot (feetech motor bus), Feetech FD software, Python (scservo_sdk), Arduino and ESP32 libraries\u003c\/li\u003e\n\u003cli\u003eHorns: 25 T spline, metal horns included; compatible with SO-101 and LeKiwi printed parts\u003c\/li\u003e\n\u003cli\u003eVoltage: C018 runs on 12 V (SO-101 follower joints); C001 \/ C044 \/ C046 run on 7.4 V (leader arm and light joints) — do not feed 12 V to the 7.4 V models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eFeetech STS3215 (ST3215) smart serial bus servo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStall torque\u003c\/th\u003e\n\u003ctd\u003eC018: 30 kg·cm at 12 V; C001 \/ C044 \/ C046: 19 kg·cm at 7.4 V (1:345), lower on the faster ratios\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGear ratio\u003c\/th\u003e\n\u003ctd\u003e1:345 (C018, C001), 1:191 (C044), 1:147 (C046)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeed\u003c\/th\u003e\n\u003ctd\u003e0.16 s\/60° (C018 at 12 V); 52 rpm at 7.4 V for 1:345 models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePosition sensor\u003c\/th\u003e\n\u003ctd\u003e12-bit magnetic encoder, 4096 steps over 360°, 0.088° resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl modes\u003c\/th\u003e\n\u003ctd\u003ePosition (0–360°), constant-speed wheel, open-loop PWM, step mode, multi-turn absolute position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eHalf-duplex TTL serial bus, 38 400 bps – 1 Mbps, daisy-chain up to 253 IDs, 3-pin cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFeedback\u003c\/th\u003e\n\u003ctd\u003ePosition, speed, load, voltage, temperature, current, moving status; over-current and over-temperature protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003eC018: 6–12.6 V (use 12 V); C001 \/ C044 \/ C046: 5–8.4 V (2S LiPo or 7.4 V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGears\u003c\/th\u003e\n\u003ctd\u003eMetal (brass and steel), dual-shaft housing with rear bearing, 25 T spline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize \/ weight\u003c\/th\u003e\n\u003ctd\u003e45.2 × 24.7 × 35 mm, 55 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded per servo\u003c\/th\u003e\n\u003ctd\u003eMetal main horn, rear horn, horn screws, mounting screws, 15 cm 3-pin cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTS3215-C018, 12 V, 30 kg·cm, 1:345:\u003c\/strong\u003e 1 × STS3215-C018 servo, metal main horn, rear horn, screws, 15 cm cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTS3215-C001, 7.4 V, 19 kg·cm, 1:345:\u003c\/strong\u003e 1 × STS3215-C001 servo with horns, screws and cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTS3215-C044, 7.4 V, 1:191 (fast):\u003c\/strong\u003e 1 × STS3215-C044 servo with horns, screws and cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTS3215-C046, 7.4 V, 1:147 (fastest):\u003c\/strong\u003e 1 × STS3215-C046 servo with horns, screws and cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSO-ARM101 12-servo set (6 × 12 V + 6 × 7.4 V, three ratios):\u003c\/strong\u003e 6 × C018 12 V for the follower, 6 × 7.4 V servos in the 1:345 \/ 1:191 \/ 1:147 mix the SO-101 leader arm calls for, horns, screws and cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeKiwi base set (3 × 12 V, 1:345):\u003c\/strong\u003e 3 × STS3215-C018 12 V servos with horns, screws and cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeKiwi full robot set (9 × 12 V + 6 × 7.4 V):\u003c\/strong\u003e 9 × 12 V and 6 × 7.4 V servos in the three LeKiwi gear ratios, horns, screws and cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpenDuck Mini set (14 × 7.4 V, 19 kg·cm, 1:345):\u003c\/strong\u003e 14 × STS3215-C001 servos with horns, screws and cables\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhich STS3215 do I need for the SO-ARM101?\u003c\/h3\u003e\u003cp\u003eThe follower arm uses six 12 V C018 (30 kg·cm) servos. The leader arm uses 7.4 V servos with three different gear ratios so it is light to move by hand: the 12-servo set on this page contains exactly the mix from the SO-101 bill of materials.\u003c\/p\u003e\u003ch3\u003eWhat is the difference between C018, C001, C044 and C046?\u003c\/h3\u003e\u003cp\u003eC018 is the 12 V, 30 kg·cm, 1:345 version. C001 is the 7.4 V, 19 kg·cm, 1:345 version. C044 (1:191) and C046 (1:147) are 7.4 V servos with lower gear ratios: faster and easier to back-drive, less torque; the SO-101 leader arm uses them for the joints you move most.\u003c\/p\u003e\u003ch3\u003eIs it a real Feetech servo?\u003c\/h3\u003e\u003cp\u003eYes. These are genuine Feetech STS3215 servos with the Feetech label, magnetic encoder and metal gearbox, the same part sold by Seeed and Waveshare.\u003c\/p\u003e\u003ch3\u003eCan I control it from Arduino or Raspberry Pi?\u003c\/h3\u003e\u003cp\u003eYes. It speaks the Feetech half-duplex serial protocol. Use a bus servo board such as the BusLinker V3.0 or a Waveshare adapter for USB, or a UART plus direction pin on a microcontroller with the Feetech SCServo library.\u003c\/p\u003e\u003ch3\u003eDoes it do continuous rotation?\u003c\/h3\u003e\u003cp\u003eYes. Besides 0–360° position mode it supports wheel (constant speed) mode, open-loop PWM mode, step mode and multi-turn absolute position, selectable by register.\u003c\/p\u003e\u003ch3\u003eWhat power supply do I need?\u003c\/h3\u003e\u003cp\u003e12 V 5 A for six C018 servos in an arm; 7.4 V (2S LiPo or a 7.4 V supply) for the C001 \/ C044 \/ C046 models. Each servo draws about 0.9 A rated and up to 2–3 A at stall.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"STS3215-C018, 12 V, 30 kg·cm, 1:345","offer_id":50758001230063,"sku":"STS3215-C018","price":22.99,"currency_code":"USD","in_stock":true},{"title":"STS3215-C001, 7.4 V, 19 kg·cm, 1:345","offer_id":50758001262831,"sku":"STS3215-C001","price":21.99,"currency_code":"USD","in_stock":true},{"title":"STS3215-C044, 7.4 V, 1:191 (fast)","offer_id":50758001295599,"sku":"STS3215-C044","price":21.99,"currency_code":"USD","in_stock":true},{"title":"STS3215-C046, 7.4 V, 1:147 (fastest)","offer_id":50758001328367,"sku":"STS3215-C046","price":21.99,"currency_code":"USD","in_stock":true},{"title":"SO-ARM101 12-servo set (6 × 12 V + 6 × 7.4 V, three ratios)","offer_id":50758001361135,"sku":"STS3215-SOARM101-SET","price":229.99,"currency_code":"USD","in_stock":true},{"title":"LeKiwi base set (3 × 12 V, 1:345)","offer_id":50758001393903,"sku":"STS3215-LEKIWI-BASE","price":72.99,"currency_code":"USD","in_stock":true},{"title":"LeKiwi full robot set (9 × 12 V + 6 × 7.4 V)","offer_id":50758001426671,"sku":"STS3215-LEKIWI-FULL","price":289.99,"currency_code":"USD","in_stock":true},{"title":"OpenDuck Mini set (14 × 7.4 V, 19 kg·cm, 1:345)","offer_id":50758001459439,"sku":"STS3215-OPENDUCK","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_servo.jpg?v=1789401615"},{"product_id":"servo-power-adapter-7-4v-8-4v-3a-dc-5-5x2-1","title":"Servo Power Adapter 7.4 V \/ 8.4 V 3 A, DC 5.5×2.1 mm, 100–240 V, for 7.4 V Bus Servos and SO-ARM101 Leader Arm","description":"\u003cp\u003e\u003cstrong\u003eThis is a regulated 7.4 V (or 8.4 V) 3 A DC power adapter with a 5.5 × 2.1 mm barrel plug that replaces a 2S LiPo battery for bench-powering 7.4 V bus servos such as the Feetech STS3215-C001\/C044\/C046 used in SO-ARM101 leader arms, LeKiwi and OpenDuck builds.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA regulated 7.4 V (or 8.4 V) 3 A supply for the 7.4 V Feetech STS3215 servos used in SO-ARM101 leader arms, LeKiwi and OpenDuck builds. It replaces a 2S LiPo on the bench so you can run and calibrate servos all day from mains power. For 12 V servos and follower arms use a 12 V 5 A adapter instead.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePowering the 7.4 V leader arm of an SO-ARM101 \/ SO-101 pair\u003c\/li\u003e\n\u003cli\u003eBench testing and calibrating 7.4 V STS3215 servos before assembly\u003c\/li\u003e\n\u003cli\u003eRunning OpenDuck Mini or other 2S-servo robots from mains during development\u003c\/li\u003e\n\u003cli\u003e8.4 V version for projects that expect a fully charged 2S pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eLeRobot builders and robotics students who buy servos separately and need a safe supply for the 7.4 V models without draining LiPo packs.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFeetech STS3215 7.4 V models (C001, C044, C046) and other 6–8.4 V servos\u003c\/li\u003e\n\u003cli\u003eWaveshare Bus Servo Adapter, BusLinker V3.0, FE-URT-1 (barrel jack)\u003c\/li\u003e\n\u003cli\u003eNot for 12 V servos (STS3215-C018, STS3250): use a 12 V 5 A adapter\u003c\/li\u003e\n\u003cli\u003eMains plug: two flat pins (US \/ CA \/ JP \/ CN); use a travel adapter in EU \/ UK \/ AU\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e7.4 V DC 3 A (22 W) or 8.4 V DC 3 A (25 W), regulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput\u003c\/th\u003e\n\u003ctd\u003e100–240 V AC 50\/60 Hz, universal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlug\u003c\/th\u003e\n\u003ctd\u003eDC 5.5 × 2.1 mm barrel, centre positive, 1.5 m cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMains plug\u003c\/th\u003e\n\u003ctd\u003eTwo flat pins (fits US \/ CA \/ JP \/ CN sockets; adapter needed for EU \/ UK \/ AU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection\u003c\/th\u003e\n\u003ctd\u003eOver-current, over-voltage, short-circuit, over-temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eCCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eFeetech STS3215 7.4 V models (C001\/C044\/C046), SO-ARM101 leader arm, 2S servo projects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.4 V 3 A (for 7.4 V servos):\u003c\/strong\u003e 1 × 7.4 V 3 A adapter with fixed mains cable and 1.5 m DC lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.4 V 3 A (2S LiPo-equivalent):\u003c\/strong\u003e 1 × 8.4 V 3 A adapter with fixed mains cable and 1.5 m DC lead\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhich voltage do I need?\u003c\/h3\u003e\u003cp\u003e7.4 V for the 7.4 V STS3215 models and the SO-ARM101 leader arm; 8.4 V only if your controller expects a fully charged 2S pack. Never feed either to 12 V servos, and never feed 12 V to 7.4 V servos.\u003c\/p\u003e\u003ch3\u003eIs 3 A enough for six servos?\u003c\/h3\u003e\u003cp\u003eFor a leader arm that is moved by hand, yes: the servos are mostly reading position. For a 7.4 V follower doing real lifting, use two adapters or a 5 A supply.\u003c\/p\u003e\u003ch3\u003eDoes the plug fit my socket?\u003c\/h3\u003e\u003cp\u003eThe cable ends in a two-flat-pin plug used in the US, Canada, Japan and China; input is 100–240 V so it works anywhere with a simple plug adapter.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"7.4 V 3 A (for 7.4 V servos)","offer_id":50760955461871,"sku":"PSU-7V4-3A","price":14.99,"currency_code":"USD","in_stock":true},{"title":"8.4 V 3 A (2S LiPo-equivalent)","offer_id":50760955494639,"sku":"PSU-8V4-3A","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_adapter.jpg?v=1789437173"},{"product_id":"waveshare-bus-servo-adapter-board","title":"Waveshare Bus Servo Adapter (A), USB-C \/ UART Driver Board for Feetech ST \/ SC Bus Servos, 9–12.6 V, up to 253 Servos","description":"\u003cp\u003e\u003cstrong\u003eThe Waveshare Bus Servo Adapter (A) is a small USB-C and UART interface board that powers and controls Feetech ST\/SC-series bus servos (STS3215, STS3250) from a PC, Raspberry Pi or microcontroller, and is the board most LeRobot SO-101 and LeKiwi builds use in place of the Hiwonder BusLinker.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Waveshare Bus Servo Adapter (A) is the low-cost USB interface most LeRobot builders use to drive Feetech STS3215 servos from a laptop or Raspberry Pi. Plug in 12 V, connect the servo chain, and the board appears as a serial port for LeRobot, the Waveshare servo tool or your own Python code. A direct alternative to the Hiwonder BusLinker for SO-ARM101 and LeKiwi builds.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eController for a self-built SO-ARM100 \/ SO-ARM101 leader or follower arm\u003c\/li\u003e\n\u003cli\u003eSetting servo IDs and offsets before assembly\u003c\/li\u003e\n\u003cli\u003eLeKiwi mobile base and OpenDuck Mini servo bus\u003c\/li\u003e\n\u003cli\u003eAny Feetech-servo robot driven from Python, ESP32 or Arduino\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eBuilders assembling SO-101 arms from servos and printed parts, and anyone who needs a spare or second USB servo interface.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eServos: Feetech STS3215, STS3250, STS3235, SCS series\u003c\/li\u003e\n\u003cli\u003eHosts: Windows, macOS, Linux, Raspberry Pi (USB serial); ESP32 \/ Arduino \/ STM32 via UART\u003c\/li\u003e\n\u003cli\u003eSoftware: Hugging Face LeRobot (feetech motor bus), Waveshare servo tool, Feetech SDK\u003c\/li\u003e\n\u003cli\u003ePower: 9–12.6 V DC in; use 12 V 5 A for six STS3215-C018\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eWaveshare Bus Servo Adapter (A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eServo protocol\u003c\/th\u003e\n\u003ctd\u003eFeetech ST \/ SC series half-duplex TTL bus (STS3215, STS3250, SCS series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHost interface\u003c\/th\u003e\n\u003ctd\u003eUSB-C (CH343 serial) or 3-pin UART header (TX \/ RX \/ GND), selectable by jumper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eServo ports\u003c\/th\u003e\n\u003ctd\u003e2 × 3-pin servo headers; daisy-chain up to 253 servos\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower input\u003c\/th\u003e\n\u003ctd\u003eDC 9–12.6 V via 5.5 × 2.1 mm barrel jack or screw terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOnboard\u003c\/th\u003e\n\u003ctd\u003ePower switch circuitry, PWR LED, brass standoffs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoftware\u003c\/th\u003e\n\u003ctd\u003eLeRobot Feetech motor bus, Waveshare bus servo tool, Python SDK, Arduino \/ ESP32 \/ Raspberry Pi examples\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003eAbout 40 × 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eDefault Title:\u003c\/strong\u003e 1 × Waveshare Bus Servo Adapter (A) with brass standoffs (no cables or power supply)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eIs this the same as the BusLinker V3.0?\u003c\/h3\u003e\u003cp\u003eFunctionally yes: both turn USB into the Feetech servo bus and pass DC power to the servos. The Waveshare board is the one used in the original SO-100\/SO-101 build guides and LeKiwi; the BusLinker is Hiwonder's version. LeRobot works with either.\u003c\/p\u003e\u003ch3\u003eCan it power the servos from USB?\u003c\/h3\u003e\u003cp\u003eNo. USB only powers the logic. Servos take power from the barrel jack or screw terminal, so connect a 12 V (or 7.4 V) supply.\u003c\/p\u003e\u003ch3\u003eHow many servos can I chain?\u003c\/h3\u003e\u003cp\u003eUp to 253 addresses on one bus; in practice six per arm, limited by the power supply, not the board.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"Default Title","offer_id":50760955592943,"sku":"WS-BUS-SERVO-ADAPTER-A","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_board_3bad5ddc-26f3-423e-9efb-4d0a4b1df279.jpg?v=1789437184"},{"product_id":"usb-camera-module-1080p-wide-angle-lerobot","title":"USB Camera Module 1080p 2 MP UVC, Wide-Angle M12 Lens (60°–140°), Plug-and-Play for LeRobot Wrist and Overhead Cameras","description":"\u003cp\u003e\u003cstrong\u003eThis is a 32 mm square 1080p USB camera board with an interchangeable M12 lens that works as a plug-and-play UVC webcam on any computer, used as the wrist (eye-in-hand) camera and the overhead (third-person) camera when recording LeRobot imitation-learning datasets with SO-ARM101, NexArm, Koch or Moss arms.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA small 1080p UVC camera board with an M12 lens, the kind of module used as the wrist (first-person) and overhead (third-person) cameras in LeRobot datasets. It needs no driver, works with OpenCV out of the box, and the 32 mm square board screws onto a printed bracket. Pick 90° for a wrist camera, 110°–140° for an overhead view of the whole workspace.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWrist camera on a SO-ARM101 gripper (90° lens)\u003c\/li\u003e\n\u003cli\u003eOverhead workspace camera on a desk arm (110°–140° lens)\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi and Jetson vision projects with OpenCV\u003c\/li\u003e\n\u003cli\u003eReplacing the 480p camera in a Standard kit with 1080p\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eLeRobot users adding a second or third view, and makers who want a small board camera that OpenCV recognises immediately.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOS: Windows, macOS, Linux, Raspberry Pi OS, Android (UVC, no driver)\u003c\/li\u003e\n\u003cli\u003eSoftware: OpenCV \/ LeRobot OpenCVCamera, ffmpeg, v4l2, OBS\u003c\/li\u003e\n\u003cli\u003eMounting: 4 holes on a 32 × 32 mm board; fits printed wrist and overhead brackets (STL in our Builder's Pack)\u003c\/li\u003e\n\u003cli\u003eConnection: USB 2.0, 1 m cable with 4-pin 2.0 mm board connector\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSensor\u003c\/th\u003e\n\u003ctd\u003e1\/3.2\" 2 MP CMOS, 1920 × 1080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame rates\u003c\/th\u003e\n\u003ctd\u003e1080p 30 fps MJPG, 720p 30 fps, 640 × 480 30 fps (5 fps YUV at 1080p)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003ctd\u003eUSB 2.0, UVC, no driver on Windows \/ macOS \/ Linux \/ Raspberry Pi \/ Android\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLens\u003c\/th\u003e\n\u003ctd\u003eM12 mount; 60°, 90°, 110° or 140° field of view, interchangeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBoard\u003c\/th\u003e\n\u003ctd\u003e32 × 32 mm, 4 mounting holes, 4-pin 2.0 mm connector, 1 m USB cable included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e5 V, 80–130 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocus\u003c\/th\u003e\n\u003ctd\u003eManual, set by turning the lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoftware\u003c\/th\u003e\n\u003ctd\u003eOpenCV, LeRobot OpenCVCamera, ffmpeg, v4l2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e60° no-distortion (4.13 mm):\u003c\/strong\u003e 1 × camera board with 4.13 mm lens, 1 m USB cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90° no-distortion (2.74 mm):\u003c\/strong\u003e 1 × camera board with 2.74 mm lens, 1 m USB cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e110° wide (2.9 mm):\u003c\/strong\u003e 1 × camera board with 2.9 mm lens, 1 m USB cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e140° wide (2.1 mm):\u003c\/strong\u003e 1 × camera board with 2.1 mm lens, 1 m USB cable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhich lens for a wrist camera?\u003c\/h3\u003e\u003cp\u003e90° no-distortion: wide enough to see the gripper fingers and the object, without fisheye curvature that confuses policies.\u003c\/p\u003e\u003ch3\u003eWhich lens for the overhead camera?\u003c\/h3\u003e\u003cp\u003e110° or 140° so the whole workspace fits from 40–60 cm above the desk; the 140° lens has visible barrel distortion, which LeRobot tolerates.\u003c\/p\u003e\u003ch3\u003eWhat frame rate does LeRobot get?\u003c\/h3\u003e\u003cp\u003e30 fps at 640 × 480 or 1280 × 720 MJPG, which is what most configs use; 1080p also runs at 30 fps in MJPG.\u003c\/p\u003e\u003ch3\u003eIs the focus adjustable?\u003c\/h3\u003e\u003cp\u003eYes, manually by turning the M12 lens; set it once for your working distance.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"60° no-distortion (4.13 mm)","offer_id":50760955887855,"sku":"USBCAM-2MP-60","price":24.99,"currency_code":"USD","in_stock":true},{"title":"90° no-distortion (2.74 mm)","offer_id":50760955920623,"sku":"USBCAM-2MP-90","price":29.99,"currency_code":"USD","in_stock":true},{"title":"110° wide (2.9 mm)","offer_id":50760955953391,"sku":"USBCAM-2MP-110","price":29.99,"currency_code":"USD","in_stock":true},{"title":"140° wide (2.1 mm)","offer_id":50760955986159,"sku":"USBCAM-2MP-140","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_module.jpg?v=1789437203"},{"product_id":"g-clamps-heavy-duty-4-pack-robot-arm-mount","title":"Heavy-Duty G-Clamps 4-Pack, 2\" or 3\" Cast Iron C-Clamps for Fixing SO-ARM101 \/ LeRobot Arm Bases to a Desk","description":"\u003cp\u003e\u003cstrong\u003eThese are heavy-duty cast-iron G-clamps (C-clamps) sold in packs of four, used to fix the base plates of SO-ARM101 and other desktop robot arms to a desk edge so the arm cannot shift during calibration, teleoperation or dataset recording.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSO-ARM101 and other SO-101 arms are held to the desk with two G-clamps through the slots in the base plate; a wobbling base ruins calibration and datasets. These heavy-duty 2-inch clamps are the size Hiwonder ships with its kits, sold as a 4-pack for a leader + follower pair.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClamping a leader + follower pair (two clamps per arm)\u003c\/li\u003e\n\u003cli\u003eFixing an overhead camera stand base or a work surface\u003c\/li\u003e\n\u003cli\u003eGeneral workbench and 3D-printer frame assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eAnyone who bought a DIY or servo-only arm kit, or lost the clamps from a boxed kit.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSO-ARM100 \/ SO-ARM101 base plates (2-inch clamps), thicker desks or NexArm bases (3-inch)\u003c\/li\u003e\n\u003cli\u003eDesk edge thickness: up to 50 mm (2\") or 86 mm (3\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eG-clamp (C-clamp), heavy-duty thickened frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eDuctile cast iron frame, heat-treated steel screw, swivel pad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOpening\u003c\/th\u003e\n\u003ctd\u003e2\": 50 mm; 3\": 86 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHandle\u003c\/th\u003e\n\u003ctd\u003eT-bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eTwo clamps per SO-101 base plate; four clamps fix a leader + follower pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eOrange powder coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch (50 mm opening), 4-pack:\u003c\/strong\u003e 4 × 2-inch heavy-duty G-clamps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-inch (86 mm opening), 4-pack:\u003c\/strong\u003e 4 × 3-inch heavy-duty G-clamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhich size for an SO-ARM101?\u003c\/h3\u003e\u003cp\u003e2-inch. The base plate is 5 mm thick and most desks are 20–40 mm, well inside the 50 mm opening.\u003c\/p\u003e\u003ch3\u003eWill they scratch the desk?\u003c\/h3\u003e\u003cp\u003eThe swivel pad is flat steel; put a scrap of card or rubber under it on a finished desk.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"2-inch (50 mm opening), 4-pack","offer_id":50760956149999,"sku":"GCLAMP-2IN-4","price":24.99,"currency_code":"USD","in_stock":true},{"title":"3-inch (86 mm opening), 4-pack","offer_id":50760956182767,"sku":"GCLAMP-3IN-4","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_clamp.jpg?v=1789437217"},{"product_id":"training-props-100-colored-wooden-cubes-tray","title":"Robot Training Props: 100 Colored Wooden Cubes (10 Colors) with 10×10 Tray, for Pick-and-Place, Sorting and Stacking Datasets","description":"\u003cp\u003e\u003cstrong\u003eThis is a set of 100 painted 2 cm wooden cubes in ten colours with a gridded wooden tray, used as standardised objects for pick-and-place, colour-sorting and stacking tasks when recording imitation-learning demonstrations with desktop robot arms.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEvery LeRobot tutorial starts with picking up a small block. This set gives you 100 identical 2 cm cubes in ten colours and a gridded tray, so you can record hundreds of consistent sort-by-colour, stack and put-in-place episodes without hunting for objects that fit the gripper.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSort-by-colour and put-in-tray tasks for ACT \/ Diffusion \/ VLA training\u003c\/li\u003e\n\u003cli\u003eStacking and tower-building demos\u003c\/li\u003e\n\u003cli\u003eConsistent objects for reproducible evaluation across episodes\u003c\/li\u003e\n\u003cli\u003eClassroom robotics exercises\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eLeRobot users and educators who need many identical, gripper-sized objects and a fixed target layout.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSO-ARM101 \/ SO-101 gripper (opens to about 5 cm)\u003c\/li\u003e\n\u003cli\u003eNexArm parallel gripper, Koch v1.1, Moss and similar desktop arms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eContents\u003c\/th\u003e\n\u003ctd\u003e100 wooden cubes in 10 colours (10 per colour) plus a 10 × 10 wooden tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCube size\u003c\/th\u003e\n\u003ctd\u003eAbout 2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBeech-type hardwood, water-based paint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eColour sorting, stacking, put-in-tray and pick-and-place tasks; the tray gives a fixed grid for repeatable episodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eSO-ARM101 \/ SO-101 grippers, NexArm gripper, Koch and Moss arms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eDefault Title:\u003c\/strong\u003e 100 × 2 cm wooden cubes (10 colours), 1 × 10 × 10 wooden tray\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhy cubes and not random household objects?\u003c\/h3\u003e\u003cp\u003eIdentical cubes make episodes comparable: the policy learns the task, not the object. Ten colours let you define sorting rules that a camera can see clearly.\u003c\/p\u003e\u003ch3\u003eAre they safe for the gripper?\u003c\/h3\u003e\u003cp\u003eYes, 2 cm hardwood cubes weigh about 6 g each and do not deform or slip in a 3D-printed gripper.\u003c\/p\u003e","brand":"Glunova Biotech","offers":[{"title":"Default Title","offer_id":50760956477679,"sku":"PROPS-CUBES-100","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_board_d49931d5-95c1-456e-aa1c-60ada35b9535.jpg?v=1789437233"},{"product_id":"so-101-builders-pack-hardware-no-servos","title":"SO-101 Builder's Pack (No Servos): Servo Adapter Board, 12 Metal Horn Sets, Cables, Power Adapter, G-Clamps + Free 3D-Print Files, for SO-ARM100 \/ SO-ARM101 LeRobot Arms","description":"\u003cp\u003e\u003cstrong\u003eThe SO-101 Builder's Pack is a hardware bundle for people building a LeRobot SO-ARM100 \/ SO-ARM101 arm from their own STS3215 servos and 3D-printed parts: the USB servo adapter, metal horns, servo cables, power adapter and desk clamps that boxed kits include but nobody sells separately, together with a free download of ArmDojo's SO-101 print files.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEverything around the servos that an SO-101 build needs and that nobody sells as one bag: the USB servo adapter, twelve metal horns, the right cables in the right lengths, a power adapter and the clamps, plus a free download of our 3D-print files. Pair it with a 12-servo STS3215 set and a roll of PLA and you have a complete leader–follower rig for a fraction of a boxed kit.\u003c\/p\u003e\u003ch2\u003eWhat can you use it for?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompleting a Seeed or Feetech 12-servo set into a working leader–follower pair\u003c\/li\u003e\n\u003cli\u003eBuilding a second follower arm for bimanual setups\u003c\/li\u003e\n\u003cli\u003eClassroom builds where students print the parts themselves\u003c\/li\u003e\n\u003cli\u003eReplacing the miscellaneous hardware after moving a kit between labs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho is it for?\u003c\/h2\u003e\u003cp\u003eMakers and labs who already have (or are buying) STS3215 servos and a 3D printer, and want the rest of the bill of materials in one order.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eArms: SO-ARM100, SO-ARM101 (LeRobot SO-101), leader and follower\u003c\/li\u003e\n\u003cli\u003eServos: 6 × Feetech STS3215 per arm (12 V for follower, 7.4 V mix for leader), sold separately as the SO-ARM101 12-servo set\u003c\/li\u003e\n\u003cli\u003eSoftware: Hugging Face LeRobot so101 configs; the Waveshare adapter appears as a serial port\u003c\/li\u003e\n\u003cli\u003ePrinting: PLA or PETG, about 1 kg per pair; files download after purchase\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGetting started: from unboxing to your first LeRobot dataset\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003ePrint the parts from the download link in your order email (leader and follower STLs, camera brackets).\u003c\/li\u003e\n\u003cli\u003eSet the servo IDs 1–6 with the Waveshare adapter and the Feetech tool before assembly.\u003c\/li\u003e\n\u003cli\u003eFit the metal main + rear horns to each servo and assemble the joints following the SO-101 guide.\u003c\/li\u003e\n\u003cli\u003eWire the chain with the 15 \/ 20 \/ 40 cm cables, base servo to the adapter.\u003c\/li\u003e\n\u003cli\u003eClamp the base to the desk with two G-clamps, connect power and USB, and run LeRobot calibration.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFor\u003c\/th\u003e\n\u003ctd\u003eSO-ARM100 \/ SO-ARM101 (LeRobot SO-101) arms built from your own or our free 3D-printed parts and 6 Feetech STS3215 servos per arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePer arm\u003c\/th\u003e\n\u003ctd\u003e1 × Waveshare Bus Servo Adapter (A), 6 × STS3215 metal main + rear horn sets with screws, 12 × 3-pin servo cables (4 × 15, 4 × 20, 4 × 40 cm), 1 × 7.4 V 3 A power adapter (leader) or 12 V supply note (follower), 2 × 2-inch G-clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e3D files\u003c\/th\u003e\n\u003ctd\u003eFree download of ArmDojo's SO-101 print files (STL, leader and follower) with every order; link is in the order confirmation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNot included\u003c\/th\u003e\n\u003ctd\u003eSTS3215 servos (sold separately: SO-ARM101 12-servo set), printed parts, cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePair pack\u003c\/th\u003e\n\u003ctd\u003eTwo of everything above: two adapters, 12 horn sets, 24 cables, two power adapters, four clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of origin\u003c\/th\u003e\n\u003ctd\u003eChina; packed and shipped from Singapore (kit assembled in Singapore from Chinese components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne arm (follower or leader):\u003c\/strong\u003e 1 × Waveshare Bus Servo Adapter (A), 6 × STS3215 metal main + rear horn sets with screws, 12 × 3-pin cables (4 × 15, 4 × 20, 4 × 40 cm), 1 × 7.4 V 3 A power adapter, 2 × 2-inch G-clamps, download card for the 3D-print files\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeader + follower pair:\u003c\/strong\u003e 2 × Waveshare adapters, 12 × horn sets, 24 × cables, 2 × power adapters (7.4 V for the leader, 8.4 V\/12 V note for the follower), 4 × G-clamps, download card\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShipping and returns\u003c\/h2\u003e\u003cp\u003eShips from our warehouse in Singapore with tracking. Parts and accessories: free standard shipping on orders over $25 ($4.99 below) to Canada, the UK, EU, Japan, Korea, Australia and most other countries, 5–15 days; to the United States at carrier cost from $27.99 (SingPost) or $109.99 (DHL Express). Assembled robot-arm kits over 2 kg are built and calibrated to order in Singapore (dispatch in 7–10 business days) and ship worldwide at carrier cost: SingPost Speedpost Priority from $124.99 (10–14 business days) or DHL Express from $229.99 (3–5 business days), shown at checkout. 7-day returns; defective items are replaced or refunded with shipping covered. Import duties, where charged by your country, are paid by the recipient.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhat is not included?\u003c\/h3\u003e\u003cp\u003eThe servos and the printed plastic parts. Add the SO-ARM101 12-servo set from this store, print the parts from our free files, and you have a complete pair. Cameras are optional and sold separately.\u003c\/p\u003e\u003ch3\u003eWhich power adapter comes in the pack?\u003c\/h3\u003e\u003cp\u003eA 7.4 V 3 A adapter for the leader arm. A follower built from 12 V STS3215-C018 servos needs a 12 V 5 A supply; if you tell us at checkout we swap the adapter.\u003c\/p\u003e\u003ch3\u003eAre the 3D files really free?\u003c\/h3\u003e\u003cp\u003eYes. Every Builder's Pack order includes a download link to ArmDojo's SO-101 print files, licensed for personal and educational use.\u003c\/p\u003e\u003ch3\u003eIs this cheaper than a boxed DIY kit?\u003c\/h3\u003e\u003cp\u003eServo set plus Builder's Pack comes to roughly the price of the Hiwonder DIY kit while letting you print the parts in any colour and swap in STS3250 shoulders.\u003c\/p\u003e","brand":"ArmDojo","offers":[{"title":"One arm (follower or leader)","offer_id":50760956739823,"sku":"SO101-BUILD-1","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Leader + follower pair","offer_id":50760956772591,"sku":"SO101-BUILD-2","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_collage.jpg?v=1789437248"},{"product_id":"so-arm101-first-training-kit","title":"SO-ARM101 First Training Kit (Arm + 100 Wooden Cubes)","description":"\u003cp\u003e\u003cstrong\u003eSO-ARM101 First Training Kit\u003c\/strong\u003e pairs an ArmDojo SO-ARM101 option with 100 colored wooden cubes and tray — the same combo buyers already chose for a first pick-and-place dataset.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChoose your SO-ARM101 level (Servo Set \/ DIY \/ Starter \/ Standard)\u003c\/li\u003e\n\u003cli\u003eIncludes Robot Training Props: 100 colored wooden cubes + 10×10 tray\u003c\/li\u003e\n\u003cli\u003eBundle saves $5 vs buying the arm option and props separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShips from Singapore. Use with Hugging Face LeRobot for your first 30 episodes.\u003c\/p\u003e","brand":"ArmDojo","offers":[{"title":"Servo Set + Training Props","offer_id":50798079705327,"sku":"SOARM101-TRAIN-SERVOS","price":374.98,"currency_code":"USD","in_stock":true},{"title":"DIY Kit + Training Props","offer_id":50798079738095,"sku":"SOARM101-TRAIN-DIY","price":399.98,"currency_code":"USD","in_stock":true},{"title":"Starter Kit + Training Props","offer_id":50798079770863,"sku":"SOARM101-TRAIN-STARTER","price":534.98,"currency_code":"USD","in_stock":true},{"title":"Standard Kit + Training Props","offer_id":50798079803631,"sku":"SOARM101-TRAIN-STANDARD","price":584.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/03_training_3d7b71f6-49cf-41d0-951a-cc294d69d010.jpg?v=1789708526"},{"product_id":"servo-power-adapter-12v-5a-dc-5-5x2-1","title":"Servo Power Adapter 12 V 5 A, DC 5.5×2.1 mm, for 12 V Bus Servos \/ SO-ARM101 Follower","description":"\u003cp\u003e\u003cstrong\u003e12 V 5 A servo power adapter\u003c\/strong\u003e for SO-ARM101 follower arms and Feetech STS3215-C018 (12 V) bus servos.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12 V DC 5 A regulated output\u003c\/li\u003e\n\u003cli\u003eDC 5.5×2.1 mm plug\u003c\/li\u003e\n\u003cli\u003e100–240 V AC input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse 7.4 V \/ 8.4 V adapters for leader-arm 7.4 V servos — do not mix voltages on the same bus.\u003c\/p\u003e","brand":"ArmDojo","offers":[{"title":"Default Title","offer_id":50798080917743,"sku":"PSU-12V-5A","price":18.99,"currency_code":"USD","in_stock":true}]},{"product_id":"so-arm101-dual-voltage-power-kit","title":"SO-ARM101 Dual-Voltage Power Kit (7.4 V + 12 V Adapters)","description":"\u003cp\u003eLeader arm needs \u003cstrong\u003e7.4 V\u003c\/strong\u003e; follower needs \u003cstrong\u003e12 V\u003c\/strong\u003e. Mixing them burns servos.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1× Servo Power Adapter 7.4 V \/ 8.4 V 3 A (choose 7.4 V tap for leader)\u003c\/li\u003e\n\u003cli\u003e1× Servo Power Adapter 12 V 5 A for follower \/ STS3215-C018\u003c\/li\u003e\n\u003cli\u003eBoth use DC 5.5×2.1 mm plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShips from Singapore. Label both barrels before first power-on.\u003c\/p\u003e","brand":"ArmDojo","offers":[{"title":"Default Title","offer_id":50798189609199,"sku":"PSU-DUAL-7V4-12V","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5406\/2063\/files\/01_adapter_a724ba57-84fb-48b7-9d12-d9c5706a3cfa.jpg?v=1789709107"}],"url":"https:\/\/armdojo.com\/collections\/so-arm101-training-loop.oembed","provider":"ArmDojo","version":"1.0","type":"link"}