Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Raspberry Pi Pico 2 A microcontroller for reading sensors and timing small motor-control tasks.
From $5 USD, board only
Processor RP2350 microcontroller
Software C/C++ SDK or MicroPython
Interfaces GPIO, PWM, I2C, SPI and UART; C/C++ or MicroPython.
Power Use documented board input and GPIO limits. GPIO is a signal, not a motor supply.
What to print Print a carrier with USB access and strain relief. Before connecting it The base Pico 2 is not Pico 2 W; wireless needs the W variant or extra hardware. Budget headers, wiring and a motor driver. This does not run desktop Linux. Compute & control
8 GB board shown; memory options vary. Image: Adafruit Raspberry Pi 5 A Linux host for a camera, user interface and higher-level robot software.
Select RAM and region for price
Processor BCM2712, Arm Cortex-A76
Software Raspberry Pi OS / Linux
Interfaces USB, Ethernet, Wi-Fi, GPIO and MIPI camera connections.
Power Manufacturer recommends a suitable 5V/5A USB-C supply. Account for cooling.
What to print Make a ventilated mount with clearance for cables and the cooler. Before connecting it Choose memory around the actual workload; include storage and power. Pi 5 camera connectors need the correct cable; Pi 4 cases do not fit. Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: NVIDIA Jetson Orin Nano Super Developer Kit An embedded GPU computer for local vision and model inference experiments.
Check current regional developer-kit price
Processor Jetson Orin Nano module with integrated NVIDIA GPU
Software NVIDIA JetPack / Linux
Interfaces JetPack software stack; confirm camera and framework support.
Power Use the specified kit power supply and thermal arrangement.
What to print Print a rigid ventilated carrier while keeping fan and connector access. Before connecting it Historical launch prices are not a current delivered quote. A trained policy, camera calibration and low-level motion controller are separate work. Motor drivers
Supplier product image; confirm the selected variant and included accessories. Image: Pololu Pololu DRV8835 Dual Motor Driver Controls two small brushed DC motors from logic-level commands.
$6.95 USD, one carrier
Interfaces PWM with direction/phase inputs; follow the carrier mode and pinout.
Power Motor supply 0 to 11V; logic supply 2 to 7V. Published continuous current is 1.2A per channel.
What to print Provide insulated standoffs and access to motor terminals. Before connecting it Compare motor stall current and driver thermal limits, not just no-load current. Requires wiring or soldered headers; keep motor current out of microcontroller pins. Pololu buying notes Motor drivers
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit PCA9685 Servo Driver Adds sixteen PWM control signals for compatible hobby servos.
$14.95 USD, board only
Interfaces I2C control; configurable address and PWM frequency.
Power Logic and servo V+ are separate. Size the external servo supply for simultaneous loads.
What to print Use a protected board carrier with service access to servo plugs. Before connecting it This is not a bus-servo controller for DYNAMIXEL or STS3215. Headers need soldering. Common PWM frequency must suit all attached servos. Adafruit buying notes Actuators
Supplier product image; confirm the selected variant and included accessories. Image: Pololu Pololu 100:1 Micro Metal Gearmotor MP 6V A small brushed gearmotor candidate for a light wheeled or tracked rover.
$23.95 USD per motor
Interfaces Two motor wires; 3mm D-shaped output shaft. This variant has no encoder.
Power 6V motor; published stall current 0.67A. Avoid sustained stalls.
What to print Print a clamp around the motor body and a wheel hub matched to the shaft. Before connecting it Plan two motors for differential drive and choose a suitable driver. Do not treat stall torque as a continuous working rating. Pololu buying notes Actuators
Manufacturer XL330 family visual; the listed model is XL330-M288-T. Image: ROBOTIS DYNAMIXEL XL330-M288-T A compact feedback servo for custom joints and small mechanisms.
Check current regional actuator price
Interfaces TTL half-duplex serial bus, DYNAMIXEL Protocol 2.0.
Power 3.7 to 6V operating range; 5V recommended in the e-manual.
What to print Model around manufacturer mounting geometry and horn clearances. Before connecting it Needs a compatible bus interface and correctly configured IDs. Not electrically interchangeable with 12V DYNAMIXEL models or ordinary PWM servos. ROBOTIS buying notes Actuators
ST-3215-C046 variant shown by Seeed; verify torque and voltage for each kit position. Image: Seeed Studio / Feetech Feetech STS3215 / ST3215 kit variants Bus-servo variants used in low-cost robot-learning arms.
Selected Seeed variants list $20 to $22 USD each
Interfaces Serial bus; match the controller, firmware, ID and gear-ratio assignment to the build guide.
Power The listed variants include 7.4V and 12V models. Select the exact SKU and matching supply.
What to print Use the frame revision and servo geometry specified by the arm project. Before connecting it A shared family name does not establish voltage or gear-ratio compatibility. Leader and follower joints can require different servo variants; verify the kit bill of materials. Seeed Studio buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Raspberry Pi Camera Module 3 An autofocus camera candidate for visual tracking and scene capture.
Select lens and regional price
Interfaces MIPI CSI camera connection; choose the cable for the host board.
Power Powered through the camera connection in the documented Pi setup.
What to print Print a camera mount with lens clearance and a gentle ribbon-cable path. Before connecting it Standard, Wide and NoIR are different imaging choices. An image stream alone does not provide depth or a calibrated robot coordinate frame. Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit VL53L1X breakout A time-of-flight distance sensor for short-range experiments.
$14.95 USD, breakout only
Interfaces I2C, with STEMMA QT / Qwiic connectors on this breakout.
Power Check breakout supply and logic levels in the wiring guide; do not use bare-chip limits interchangeably.
What to print Keep the optical opening clear and prototype the mounting angle. Before connecting it Published maximum range depends on target and operating conditions. This is a point distance sensor, not a scanning lidar or validated collision-protection system. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit SLAMTEC RPLIDAR A1 A rotating two-dimensional range scanner for mapping experiments.
Check the exact development-kit price
Interfaces Serial data; development-kit USB adapter and ROS integration depend on package.
Power Use the model-specific motor and scanner power requirements.
What to print Mount level with a clear scan plane, away from cables and chassis obstructions. Before connecting it Check the A1 revision and included adapter rather than assuming all listings match. Navigation still needs odometry, calibration and software; a scanner is not a complete navigation system. Power
Supplier product image; confirm the selected variant and included accessories. Image: Pololu Pololu D24V22F5 regulator A step-down regulator candidate for a regulated 5V electronics rail.
$18.95 USD, one regulator
Interfaces Fixed 5V output; wire input, output and common ground per the carrier guide.
Power Input 5.3 to 36V; typical maximum 2.5A depends on input voltage and cooling.
What to print Protect the board from shorts while allowing heat to escape. Before connecting it This cannot meet Raspberry Pi 5's recommended 5A supply rating. It cannot boost a depleted battery below its input requirement; size and fuse the power path. Pololu buying notes Mechanical
Supplier product image; confirm the selected variant and included accessories. Image: Pololu Pololu Zumo Chassis Kit A compact tracked base to build around small gearmotors.
$23.49 USD, chassis only
Interfaces Mechanical kit for two compatible micro metal gearmotors, which are not included.
Power Battery compartment accepts four AA cells; control electronics are separate.
What to print Add a removable sensor deck with access to batteries and fasteners. Before connecting it Buy motors, driver, controller and wiring separately. Measure mounting holes and track clearance before printing an upper deck. Pololu buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit BNO085 orientation IMU Read fused orientation and motion measurements for a robot body.
$29.50 USD listed, component only
Interfaces I2C, SPI or UART options; confirm host-library support.
Power Match breakout supply and logic levels to the documented wiring.
What to print Print a rigid, repeatable mount with its axes marked. Before connecting it Motor magnets and wiring can disturb heading; calibrate in the installed position. Confirm clock-stretching and I2C compatibility with the selected host. Adafruit buying notes Power
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit INA219 current sensor Log branch current and supply voltage to understand power consumption.
$9.95 USD listed, component only
Interfaces I2C; high-side shunt measurement.
Power Breakout lists up to 26 V and ±3.2 A measurement range.
What to print Print an insulated carrier with terminal access and strain relief. Before connecting it Do not route a motor branch above the board or connector rating through this sensor. Current monitoring does not replace a fuse, BMS or hardware cutoff. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit ADS1115 ADC Read analog sensors on a host without suitable analog inputs.
$14.95 USD listed, component only
Interfaces I2C; four single-ended or two differential channels, up to 860 samples/s.
Power Observe supply, input and selected gain limits.
What to print Print a protected sensor-board tray away from motor leads. Before connecting it 16-bit conversion does not imply 16-bit system accuracy. Check sample rate across all channels against the feedback loop. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit HX711 load-cell ADC Experiment with grip-force or weighing measurements using a separate load cell.
$9.95 USD listed, component only
Interfaces Clock and data interface; 10 or 80 samples/s switch.
Power Wire bridge excitation and analog/digital supplies per the breakout guide.
What to print Print a test fixture that directs force through the load cell. Before connecting it A load cell is separate and must be sized for the force and overload case. Calibrate after assembly; this is not a fast or safety-rated force controller. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit AS5600 magnetic angle sensor Measure a rotating shaft angle without a contacting potentiometer.
$5.95 USD listed, component only
Interfaces I2C absolute-angle readings with a suitable rotating magnet.
Power Follow the breakout supply and logic wiring; the magnet is passive.
What to print Print a concentric magnet holder and adjustable sensor bracket. Before connecting it Check magnet polarity, alignment and air gap against the guide. One-turn angle does not preserve multi-turn position through a power loss. Adafruit buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit MCP23017 GPIO expander Add digital inputs for buttons, limit switches and status signals.
$5.95 USD listed, component only
Interfaces I2C; 16 digital GPIO and interrupt outputs.
Power Use the documented 3 V or 5 V logic arrangement and total-current limits.
What to print Print a connector panel with named switch channels. Before connecting it These pins are digital, not analog inputs or motor outputs. I2C latency and shared-bus faults make this unsuitable as the only emergency-stop path. Adafruit buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit DS3231 RTC Keep timestamps for robot logs when network time is unavailable.
$17.50 USD listed, component only
Interfaces I2C real-time clock with battery backup.
Power A CR1220 coin cell is needed for backup and is sold separately.
What to print Print a small carrier with accessible battery replacement. Before connecting it Set the clock and record the timezone convention before logging. An RTC does not synchronize high-rate camera and IMU timestamps by itself. Adafruit buying notes Wiring & interfaces
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit TCA9548A I2C multiplexer Connect multiple sensors that share a fixed I2C address.
$6.95 USD listed, component only
Interfaces Eight selectable downstream I2C channels.
Power Follow 3 V / 5 V wiring and pull-up requirements.
What to print Print a cable comb and mounting plate for the eight branches. Before connecting it Software must select the correct channel before each sensor transaction. It does not turn I2C into a long-distance or noise-immune field bus. Adafruit buying notes Wiring & interfaces
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit PCA9546 QT multiplexer Create a compact four-branch sensor hub with QT connectors.
$3.95 USD listed, component only
Interfaces Four selectable I2C channels; STEMMA QT / Qwiic connectors.
Power Confirm regulator jumper settings and downstream current budget.
What to print Print a labelled four-port sensor junction enclosure. Before connecting it Cable compatibility does not resolve duplicate addresses without channel selection. This board differs from the eight-channel TCA9548A; allocate ports before purchase. Adafruit buying notes Motor drivers
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit DRV8871 motor driver Drive one brushed DC motor with a configurable current limit.
$7.50 USD listed, component only
Interfaces Two logic inputs with PWM control.
Power 6.5 to 45 V motor supply; 3.6 A is a peak figure, not continuous board current.
What to print Print a ventilated carrier with protected terminals. Before connecting it Check motor stall current and cooling before selecting the driver. The supplied resistor sets roughly 2 A limiting; confirm the actual board configuration. Adafruit buying notes Motor drivers
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit TB6612 dual motor driver Control two small brushed motors or a suitable stepper.
$6.95 USD listed, component only
Interfaces Direction, PWM and standby signals; two H-bridges.
Power 4.5 to 13.5 V motor rail; 2.7 to 5 V logic; 1.2 A per channel.
What to print Print a board bracket with separate motor and logic cable routes. Before connecting it Short peak-current ratings do not cover a sustained stall. It is not a suitable choice for a motor that needs a 3 V supply. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit BME280 environmental sensor Measure temperature, humidity and pressure on a sensing rover.
$14.95 USD listed, component only
Interfaces I2C or SPI; use the breakout-specific pinout.
Power Breakout includes regulation and level shifting for documented 3 V / 5 V use.
What to print Print a vented shroud that shields the board without trapping heat. Before connecting it Keep the sensor away from regulator and processor heat. Pressure-based altitude drifts with weather; it is not an absolute position reference. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Adafruit SCD-41 CO2 sensor Measure CO2 for an environmental mapping experiment.
$49.95 USD listed, component only
Interfaces I2C; true CO2 sensing rather than a VOC-derived estimate.
Power Use the documented supply with low ripple and enough current for measurement peaks.
What to print Print a ventilated mount away from warm electronics. Before connecting it Read calibration and compensation guidance before comparing rooms. Allow settling time and log position; this is not a certified life-safety gas alarm. Adafruit buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit MCP3008 eight-channel ADC Add basic analog channels to a small computer or controller.
$4.50 USD listed, component only
Interfaces SPI; eight channels with 10-bit conversion.
Power Match reference voltage, supply, logic and analog-input limits.
What to print Print a carrier for a separately assembled breakout or prototyping board. Before connecting it This listing is a chip, not a ready-wired sensor board. Budget a socket or PCB, decoupling and wiring; choose ADS1115 if its interface and resolution better fit. Adafruit buying notes Motor drivers
Supplier product image; confirm the selected variant and included accessories. Image: ODrive Robotics ODrive Pro Single-axis controller for a custom brushless servo joint.
$229 USD listed, controller only
Interfaces CAN, isolated UART and STEP/DIR; encoder integration.
Power 12 to 56 V operation. Size cooling, wiring and supply for the configured current.
What to print Print cable guides around a separately specified heatsink or enclosure. Before connecting it No brake-resistor driver: follow the manufacturer battery or regen-clamp requirement. Do not connect USB and DC input together without the specified USB isolator. Motor, encoder, heat spreader and connectors are separate; verify current backorder timing. ODrive Robotics buying notes Sensors & vision
Supplier product image; confirm the selected variant and included accessories. Image: Luxonis OAK-D Lite Add RGB and stereo-depth perception to a research robot.
$269 USD listed, camera only
Interfaces USB 2 / USB 3 and DepthAI; choose auto-focus or fixed-focus variant.
Power USB carries power and data; check host delivery and cable requirements.
What to print Print a rigid mount that leaves the stereo cameras unobstructed. Before connecting it Confirm USB bandwidth, host software and required depth range. Allow for cable and enclosure costs; do not confuse Lite with OAK-D Pro. Luxonis buying notes Grippers & tooling
Manufacturer 2F gripper family image, including 2F-85 and 2F-140; this entry covers 2F-85. Image: Robotiq Robotiq 2F-85 Adaptive two-finger gripper for research and industrial manipulation.
Request a gripper and integration-kit quote
Interfaces Use the robot-specific integration kit or documented industrial interface.
Power Confirm supply, cabling and controller requirements for the selected kit.
What to print Prototype custom fingertips and part nests before qualifying their grip. Before connecting it A matching flange does not establish software or electrical compatibility. Include gripper mass, fingertip geometry and acceleration in payload calculations. Robotiq buying notes Grippers & tooling
Supplier product image; confirm the selected variant and included accessories. Image: OnRobot OnRobot RG2 Two-finger gripper for variable part shapes and handling experiments.
Request a gripper and integration-kit quote
Interfaces Robot integration depends on the OnRobot interface and adapter package.
Power Confirm the tool power and connection arrangement with the selected robot.
What to print Prototype task-specific fingers and handling fixtures within manufacturer limits. Before connecting it RG2 and RG2-FT are different products; do not assume force/torque sensing. Confirm tool changer, adapter, controller software and mounting hardware in the quote. OnRobot buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: M5Stack M5Stack CoreS3 A packaged touchscreen controller for robot status, input and connected sensor experiments.
Select exact board variant and region for current price
Processor ESP32-S3, dual-core LX7; 16 MB flash, 8 MB PSRAM
Software Arduino, ESP-IDF and UIFlow2
Interfaces USB-C, expansion bus and HY2.0 ports; onboard camera, IMU and audio.
Power Use USB or the documented DinBase power input. The base input range does not apply to GPIO.
What to print Print a console mount with access to ports, reset and the screen. Before connecting it Check pin allocation before attaching Units; onboard devices already use several buses. This runs firmware, not Raspberry Pi OS or a desktop ROS installation. M5Stack buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: M5Stack M5Stack AtomS3 Tiny display and IMU controller for a robot joint status panel or local sensor node.
Select exact board variant and region for current price
Processor ESP32-S3FN8, dual-core LX7; 8 MB flash
Software Arduino, ESP-IDF and UIFlow2
Interfaces USB-C, HY2.0 port, GPIO and 0.85-inch display.
Power 5 V USB input; follow 3.3 V GPIO limits.
What to print Print a compact mount with screen visibility and cable strain relief. Before connecting it AtomS3, AtomS3 Lite and AtomS3R have different hardware; match the exact SKU. Shared I2C pins and onboard devices constrain expansion choices. M5Stack buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: M5Stack M5Stack StickC-Plus2 Battery-powered display controller for a small teleoperation or motion-sensing experiment.
Select exact board variant and region for current price
Processor ESP32-PICO-V3-02; 8 MB flash, 2 MB PSRAM
Software Arduino, ESP-IDF and UIFlow
Interfaces USB-C, HY2.0, HAT connector, IMU, buttons and 1.14-inch screen.
Power 5 V USB input with an internal 200 mAh battery.
What to print Print a handheld grip or removable robot-side mount. Before connecting it Plan a communication-loss timeout before using wireless commands for motion. Check HAT pin maps and battery runtime with your actual peripherals. M5Stack buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: M5Stack M5Stack Atom-Lite Compact controller for a simple connected sensor or actuator interface.
Select exact board variant and region for current price
Processor ESP32-PICO-D4; 4 MB flash
Software Arduino, ESP-IDF and UIFlow
Interfaces USB-C, GPIO, HY2.0, RGB LED and button.
Power USB input and 3.3 V logic; motors need a separate driver and supply.
What to print Print a small socket around its mounting point and connector access. Before connecting it Atom-Lite does not include the display and IMU of AtomS3. Check reserved and boot-related pins before selecting outputs. M5Stack buying notes Compute & control
Manufacturer annotated DevKitC V4 board view. Image: Espressif Espressif ESP32-DevKitC V4 General-purpose Wi-Fi controller for learning embedded robot interfaces.
Select exact board variant and region for current price
Processor ESP32 module; confirm the WROOM variant
Software ESP-IDF; Arduino core where supported
Interfaces USB-to-UART, GPIO, I2C, SPI, UART and PWM.
Power Use one documented power source; GPIO is 3.3 V logic.
What to print Print a breadboard or screw-mounted development tray. Before connecting it DevKitC clones and module variants can have different pinouts and memory. Wireless tasks can affect timing; isolate critical motion behavior from network handling. Espressif Systems buying notes Compute & control
Manufacturer DevKitC-1 v1.1 image; module memory variants differ. Image: Espressif Espressif ESP32-S3-DevKitC-1 Controller for USB, connected interfaces and bounded embedded vision experiments.
Select exact board variant and region for current price
Processor ESP32-S3; flash and PSRAM depend on module suffix
Software ESP-IDF; supported Arduino ESP32 core
Interfaces USB, GPIO, serial buses and Wi-Fi / Bluetooth LE.
Power Use the board power arrangement documented for its revision; 3.3 V GPIO.
What to print Print a carrier that leaves both USB ports and antenna clear. Before connecting it Select the exact memory SKU; PSRAM is not implied by the board-family name. Some memory configurations reserve additional GPIO; consult the matching pin map. Espressif Systems buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Espressif Espressif ESP32-C6-DevKitC-1 v1.2 Wireless sensor node for Wi-Fi 6 and 802.15.4 experiments around a robot.
Select exact board variant and region for current price
Processor ESP32-C6, RISC-V; 8 MB flash on the documented board
Software ESP-IDF with board-revision matching documentation
Interfaces 2.4 GHz Wi-Fi 6, Bluetooth LE and IEEE 802.15.4; USB and GPIO.
Power 5 V input regulation to 3.3 V; check the selected USB/power path.
What to print Print an antenna-clear sensor-node case with reset access. Before connecting it Protocol capability does not supply a complete Thread or Zigbee application. C6 is not a pin-for-pin or software-identical replacement for S3. Espressif Systems buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Raspberry Pi Zero 2 W Small Linux computer for lightweight robot networking and camera tasks.
Select exact board variant and region for current price
Processor Quad-core 64-bit Arm Cortex-A53
Software Raspberry Pi OS / Linux
Interfaces Wireless LAN, Bluetooth, USB OTG, camera connector and unpopulated GPIO header.
Power Use a suitable regulated 5 V supply; allow for USB peripherals.
What to print Print a lightweight ventilated mount with the correct camera-cable opening. Before connecting it Limited memory constrains vision workloads; measure the actual program. Budget microSD, headers, adapters and the Zero camera cable. Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Adafruit Raspberry Pi Pico 2 W Wireless microcontroller for local sensor reading and timed control tasks.
Select exact board variant and region for current price
Processor RP2350; dual Cortex-M33 or dual Hazard3 at 150 MHz
Software C/C++ SDK or MicroPython
Interfaces PIO, PWM, I2C, SPI, UART, Wi-Fi and Bluetooth.
Power Use the documented board input and 3.3 V signal levels; no direct motor power.
What to print Print a slim board carrier with antenna clearance. Before connecting it Pico 2 W runs firmware, not Linux. The non-W Pico 2 has no onboard wireless. Choose a supported wireless stack and test timing under network load. Compute & control
Manufacturer Compute Module 5 image; memory, storage and wireless configurations differ. Image: Raspberry Pi Raspberry Pi Compute Module 5 System-on-module for a robot that needs a custom carrier and integrated compute.
Select exact board variant and region for current price
Processor BCM2712, quad-core Cortex-A76 at 2.4 GHz
Software Linux with a matching carrier-board configuration
Interfaces Carrier exposes selected PCIe, USB, MIPI, Ethernet and GPIO interfaces.
Power Power and cooling are carrier-design responsibilities; follow CM5 design documents.
What to print Print a case for the complete carrier assembly and cooler, not the bare module alone. Before connecting it Select RAM, eMMC and wireless options explicitly. A module-only price excludes the carrier, storage choices, cooling and connectors. Compute & control
4 GB Model B shown; memory options vary. Image: Adafruit Raspberry Pi 4 Model B Linux host for existing robot software, USB devices and supported camera pipelines.
Select exact board variant and region for current price
Processor BCM2711, quad-core Cortex-A72
Software Raspberry Pi OS / Linux
Interfaces USB, Ethernet, wireless, GPIO and camera/display connectors.
Power Use an appropriate USB-C 5 V supply and cooling for sustained workloads.
What to print Print a case sized to Pi 4 ports rather than reusing a Pi 5 case. Before connecting it Choose RAM around measured workload and check software image support. GPIO is 3.3 V and does not replace a motor controller. Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Arduino Arduino Nano ESP32 Compact Arduino-form-factor controller for connected robot peripherals.
Select exact board variant and region for current price
Processor u-blox NORA-W106 module with ESP32-S3
Software Arduino IDE or MicroPython
Interfaces USB-C, Wi-Fi, Bluetooth LE and Nano-format GPIO.
Power Follow the Nano ESP32 3.3 V I/O specification, not classic Nano 5 V assumptions.
What to print Print a small controller tray with USB-C access. Before connecting it Arduino pin numbers and ESP32 GPIO numbers can differ; match the selected numbering mode. Check library support for the ESP32 architecture rather than assuming AVR compatibility. Arduino buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Arduino Arduino UNO R4 WiFi UNO-format controller for local I/O with a separate wireless coprocessor.
Select exact board variant and region for current price
Processor Renesas RA4M1 Cortex-M4, with ESP32-S3 for connectivity
Software Arduino IDE and UNO R4 board support
Interfaces UNO headers, USB-C, CAN controller, DAC and LED matrix.
Power RA4M1 GPIO is 5 V; use level shifting for 3.3 V-only peripherals.
What to print Print a shield-friendly case with accessible USB and power connectors. Before connecting it Its main application processor is the RA4M1, not the ESP32-S3. CAN requires a suitable external transceiver; a controller peripheral is not the full bus interface. Arduino buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: PJRC PJRC Teensy 4.1 Fast microcontroller for timing, signal processing and multiple robot interfaces.
Select exact board variant and region for current price
Processor Arm Cortex-M7 at 600 MHz
Software Arduino IDE with Teensy boards support
Interfaces PWM, serial buses, CAN controllers, USB host/device and microSD.
Power Follow 3.3 V I/O limits; these pins are not 5 V tolerant.
What to print Print a carrier with clearance for the microSD slot and added headers. Before connecting it CAN transceivers and Ethernet connection hardware are separate integration needs. High clock speed does not establish a safe motion loop; validate timing and fault handling. PJRC buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Seeed Studio Seeed Studio XIAO ESP32S3 Sense Compact camera and microphone controller for local sensing and robot-interface experiments.
Check current Sense kit price and camera revision
Processor ESP32-S3R8; 8 MB PSRAM and 8 MB flash
Software Arduino and ESP-IDF examples; firmware rather than a Linux host
Interfaces USB-C, GPIO, UART, I2C and SPI; Sense expansion adds camera, microphone and microSD.
Power USB-C 5 V input; use the documented battery circuit and GPIO electrical limits.
What to print A ventilated camera mount with access to USB, buttons and the expansion connector. Before connecting it The standard S3 board and Sense expansion are different packages. Confirm the included camera: the wiki documents OV2640 replacement by OV3660. Camera firmware, thermal behavior and wiring must match the selected revision. Use separate actuator power and drivers. Seeed Studio buying notes Compute & control
Supplier product image; confirm the selected variant and included accessories. Image: Seeed Studio Seeed Studio XIAO ESP32C6 A small connected controller for sensor nodes, telemetry and robot accessories.
Check the current board and regional price
Processor ESP32-C6; RISC-V high-performance core up to 160 MHz, low-power core up to 20 MHz; 4 MB flash
Software Arduino and ESP-IDF workflows; choose a supported wireless stack
Interfaces USB-C, UART, I2C, SPI and GPIO; 2.4 GHz Wi-Fi 6, BLE and IEEE 802.15.4 radio.
Power USB-C 5 V input or documented 3.7 V battery connection; respect GPIO limits.
What to print A removable electronics carrier with antenna clearance and cable strain relief. Before connecting it Thread, Zigbee and Matter behavior requires suitable firmware and a compatible network; radio support alone is not a finished robot integration. Follow the pin map, antenna-selection and battery guidance. Do not connect motors directly to GPIO. Seeed Studio buying notes 
