# device — Open Hardware Directory > **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link. **43 device listed.** ## M5StickC Plus 2 Compact ESP32-PICO-V3-02 wearable dev board with 1.14" TFT LCD (135x240), 6-axis IMU (MPU6886), IR transmitter, microphone, buzzer, 200mAh battery, Wi-Fi and Bluetooth in a 48x24x13.5mm form factor. [Details](https://openhardware.directory/devices/m5stickc-plus-2) | [Markdown](https://openhardware.directory/devices/m5stickc-plus-2/md) ## M5Stack Core2 ESP32-based IoT dev kit with 2.0" IPS capacitive touch display, 16MB flash, 8MB PSRAM, built-in mic, speaker, IMU, vibration motor, and 390mAh battery in a compact stackable enclosure. [Details](https://openhardware.directory/devices/m5stack-core2) | [Markdown](https://openhardware.directory/devices/m5stack-core2/md) ## M5Stack AtomS3 Ultra-compact ESP32-S3 dev board (24x24mm) with 0.85" IPS LCD (128x128), 6-axis IMU, 8MB flash, Wi-Fi, BLE 5.0, USB-C, and Grove port. Ideal for IoT prototyping and embedded UI projects. [Details](https://openhardware.directory/devices/m5stack-atoms3) | [Markdown](https://openhardware.directory/devices/m5stack-atoms3/md) ## Holybro Pixhawk 6C Open-source flight controller based on the Pixhawk FMUv6C standard. Features STM32H743 processor, dual redundant IMUs, barometer, and magnetometer. Runs ArduPilot or PX4 autopilot firmware. [Details](https://openhardware.directory/devices/holybro-pixhawk-6c) | [Markdown](https://openhardware.directory/devices/holybro-pixhawk-6c/md) ## SenseCAP Indicator D1 Dual-MCU IoT development platform featuring ESP32-S3 and RP2040 processors with a 4-inch capacitive touchscreen, WiFi, BLE, optional LoRa, and multiple Grove sensor connectors for IoT prototyping. [Details](https://openhardware.directory/devices/sensecap-indicator-d1) | [Markdown](https://openhardware.directory/devices/sensecap-indicator-d1/md) ## Seeed XIAO ESP32S3 Plus Ultra-compact ESP32-S3 development board with OV2640 camera, digital microphone, 8MB PSRAM, 8MB flash, WiFi 802.11 b/g/n, BLE 5.0, extended GPIO, and battery charging — ideal for AI and IoT edge projects. [Details](https://openhardware.directory/devices/xiao-esp32s3-plus) | [Markdown](https://openhardware.directory/devices/xiao-esp32s3-plus/md) ## WT32-SC01 Plus ESP32-S3 development board with a 3.5" capacitive touch IPS LCD (480x320), 16MB flash, and 8MB PSRAM. Popular for building custom HMI/UI projects with LVGL, smart home panels, and IoT dashboards. [Details](https://openhardware.directory/devices/wt32-sc01-plus) | [Markdown](https://openhardware.directory/devices/wt32-sc01-plus/md) ## Waveshare ESP32-S3 Touch LCD 3.49 ESP32-S3 dev board with 3.49" capacitive touch IPS display, dual microphone array, 6-axis IMU, RTC, and battery support. Ideal for wearable UIs and compact IoT dashboards. [Details](https://openhardware.directory/devices/waveshare-esp32-s3-touch-lcd-3-49) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-s3-touch-lcd-3-49/md) ## Waveshare ESP32-S3 Touch LCD 7 ESP32-S3 dev board with 7" capacitive touch IPS display (800x480), CAN/RS485 interfaces, and battery support. Built for HMI panels, industrial control, and IoT dashboards. [Details](https://openhardware.directory/devices/waveshare-esp32-s3-touch-lcd-7) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-s3-touch-lcd-7/md) ## ESP32-S3 Nano Compact ESP32-S3 dev board by Waveshare in Arduino Nano form factor. Features dual-core 240MHz LX7, 16MB flash, 8MB PSRAM, WiFi, BLE 5.0, and USB-C. Drop-in ESP32-S3 upgrade for Nano-sized projects. [Details](https://openhardware.directory/devices/esp32-s3-nano) | [Markdown](https://openhardware.directory/devices/esp32-s3-nano/md) ## Sonoff BasicR2 WiFi smart switch based on ESP8285, widely used in the open-source home automation community. Easily flashable with Tasmota or ESPHome for local-only smart home control without cloud dependency. [Details](https://openhardware.directory/devices/sonoff-basicr2) | [Markdown](https://openhardware.directory/devices/sonoff-basicr2/md) ## pic0rick Pico Ultrasound Pulse-Echo System OSHWA-certified open-source ultrasound development kit built around the Raspberry Pi Pico (RP2040). Features a 60 Msps 10-bit ADC, AD8331 time-gain amplifier, and three-level bipolar pulser for NDT and education. [Details](https://openhardware.directory/devices/pic0rick) | [Markdown](https://openhardware.directory/devices/pic0rick/md) ## Waveshare RoArm-M1 ESP32-based 5-DOF desktop robotic arm with high-torque serial bus servos, WiFi/Bluetooth control, motion recording, inverse kinematics, and ROS 2 support. Carbon fiber and aluminum construction. [Details](https://openhardware.directory/devices/waveshare-roarm-m1) | [Markdown](https://openhardware.directory/devices/waveshare-roarm-m1/md) ## Waveshare RoArm-M2-S ESP32-based 4-DOF robotic arm with 360-degree base rotation, 500g payload at 300mm reach, dual-drive shoulder joint, 9-axis IMU, and ROS 2 + LeRobot compatibility. Under 850g total weight. [Details](https://openhardware.directory/devices/waveshare-roarm-m2-s) | [Markdown](https://openhardware.directory/devices/waveshare-roarm-m2-s/md) ## Waveshare RoArm-M3 ESP32-based 5+1 DOF robotic arm with 1kg payload, 360-degree base, dual-drive shoulder, 7 servos, 9-axis IMU, TF card slot, and ROS 2 + LeRobot support. Carbon fiber and aluminum build. [Details](https://openhardware.directory/devices/waveshare-roarm-m3) | [Markdown](https://openhardware.directory/devices/waveshare-roarm-m3/md) ## Waveshare UGV Beast Open-source ROS2 AI robot with tracked chassis, Raspberry Pi 4B/5, ESP32 sub-controller, 5MP camera with pan-tilt, IMU, and support for LiDAR expansion. Programmable via Python, OpenCV, and ROS2. [Details](https://openhardware.directory/devices/waveshare-ugv-beast) | [Markdown](https://openhardware.directory/devices/waveshare-ugv-beast/md) ## Sonoff ZBMini Zigbee 3.0 two-way smart switch in a tiny form factor that fits behind existing wall switches. Supports external switch input and works with Home Assistant, SmartThings, and other Zigbee hubs. [Details](https://openhardware.directory/devices/sonoff-zbmini) | [Markdown](https://openhardware.directory/devices/sonoff-zbmini/md) ## Home Assistant Connect ZWA-2 Z-Wave 700 series USB stick for Home Assistant, based on Silicon Labs EFR32ZG23. Plug-and-play Z-Wave coordinator with long range support, designed by Nabu Casa for seamless Home Assistant integration. [Details](https://openhardware.directory/devices/home-assistant-connect-zwa-2) | [Markdown](https://openhardware.directory/devices/home-assistant-connect-zwa-2/md) ## Seeed XIAO 2-Channel WiFi AC Relay ESP32-C6 based 2-channel AC relay module with WiFi 6, Zigbee 3.0, and Thread support. Compact relay board compatible with Arduino and ESPHome for smart home AC switching up to 10A per channel. [Details](https://openhardware.directory/devices/seeed-xiao-2-channel-wifi-ac-relay) | [Markdown](https://openhardware.directory/devices/seeed-xiao-2-channel-wifi-ac-relay/md) ## Sonoff SNZB-01P Zigbee 3.0 wireless button and scene switch with single, double, and long press actions. Battery-powered with CR2477 lasting up to 5 years. Works with Home Assistant, Zigbee2MQTT, and eWeLink. [Details](https://openhardware.directory/devices/sonoff-snzb-01p) | [Markdown](https://openhardware.directory/devices/sonoff-snzb-01p/md) ## M5Stack Single Live Wire WiFi Smart Switch ESP32-C6 based WiFi smart switch for single live wire AC power control. Supports WiFi 6 and Zigbee 3.0, fits standard wall boxes for home automation. [Details](https://openhardware.directory/devices/m5stack-wifi-smart-switch) | [Markdown](https://openhardware.directory/devices/m5stack-wifi-smart-switch/md) ## M5Stack Air Quality Kit v1.1 ESP32-S3 based air quality monitor with SEN55 particulate/VOC sensor, SCD40 CO2 sensor, 1.54" e-ink display, 600mAh battery, and Grove connector. [Details](https://openhardware.directory/devices/m5stack-air-quality-kit) | [Markdown](https://openhardware.directory/devices/m5stack-air-quality-kit/md) ## Holybro Pixhawk 4 Open-source flight controller based on the Pixhawk FMUv5 standard. Features STM32F765 processor at 216MHz, triple redundant IMUs, barometer, and magnetometer. Runs ArduPilot or PX4 autopilot firmware. [Details](https://openhardware.directory/devices/holybro-pixhawk-4) | [Markdown](https://openhardware.directory/devices/holybro-pixhawk-4/md) ## TinkerNav RTK GNSS Board Open-source RTK GNSS board with SkyTraq PX1105R receiver and ESP32-S3 for centimeter-level positioning. Works as base station or rover with WiFi, Bluetooth LE, and optional LoRa connectivity. [Details](https://openhardware.directory/devices/tinkernav-rtk-gnss-board) | [Markdown](https://openhardware.directory/devices/tinkernav-rtk-gnss-board/md) ## Pine64 PineTime Open-source smartwatch built on the Nordic nRF52832 SoC with 1.3-inch IPS touchscreen, heart rate sensor, accelerometer, and week-long battery life. Runs InfiniTime, Wasp-OS, or Zephyr firmware. Priced from $27. [Details](https://openhardware.directory/devices/pine64-pinetime) | [Markdown](https://openhardware.directory/devices/pine64-pinetime/md) ## makerdiary nRF52840-MDK USB Dongle Open-source multi-protocol wireless USB dongle based on the Nordic nRF52840 SoC. Supports BLE 5.4, Thread, Zigbee, 802.15.4, NFC, and USB 2.0 with UF2 drag-and-drop bootloader. Priced at $12.99. [Details](https://openhardware.directory/devices/makerdiary-nrf52840-mdk-usb-dongle) | [Markdown](https://openhardware.directory/devices/makerdiary-nrf52840-mdk-usb-dongle/md) ## nice!nano v2 Wireless Keyboard Controller Pro Micro drop-in replacement wireless keyboard controller built on the nRF52840 with BLE 5.0, onboard LiPo charger, mid-mount USB-C, and UF2 bootloader. The most popular controller for ZMK wireless split keyboards at $25. [Details](https://openhardware.directory/devices/nice-nano-v2-wireless-keyboard-controller) | [Markdown](https://openhardware.directory/devices/nice-nano-v2-wireless-keyboard-controller/md) ## BeagleConnect Freedom Open-source wireless IoT board with TI CC1352P7 dual-band radio (sub-GHz + 2.4 GHz), BLE 5.0, two mikroBUS sockets for 1,000+ Click boards, and Zephyr RTOS. Designed for long-range wireless sensor networks up to 1 km. [Details](https://openhardware.directory/devices/beagleconnect-freedom) | [Markdown](https://openhardware.directory/devices/beagleconnect-freedom/md) ## BigTreeTech SKR Pro V1.1 32-bit 3D printer control board powered by STM32F407ZGT6 @ 168MHz. Supports 6 stepper drivers, triple extruder, dual Z, 12–24V input. Compatible with Marlin and Klipper firmware. [Details](https://openhardware.directory/devices/bigtreetech-skr-pro-v1-1) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-pro-v1-1/md) ## BigTreeTech SKR V1.4 Turbo 32-bit 3D printer control board with LPC1769 @ 120MHz. Supports 5 stepper driver sockets, dual Z, 12–24V, TMC2209 UART. Popular Marlin and Klipper compatible upgrade board. [Details](https://openhardware.directory/devices/bigtreetech-skr-v1-4-turbo) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-v1-4-turbo/md) ## BigTreeTech SKR Mini E3 V1.2 Ultra-quiet 32-bit 3D printer board with 4 integrated TMC2209 UART stepper drivers. STM32F103RCT6 @ 72MHz. Direct drop-in replacement for Ender 3. Supports Marlin and Klipper. [Details](https://openhardware.directory/devices/bigtreetech-skr-mini-e3-v1-2) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-mini-e3-v1-2/md) ## BigTreeTech SKR Mini E3 V2.0 Improved 32-bit control board with 4 integrated TMC2209 UART drivers, dual Z ports, and STM32F103RCT6 @ 72MHz. Drop-in upgrade for Ender 3, CR-10S, Ender 5. Marlin and Klipper ready. [Details](https://openhardware.directory/devices/bigtreetech-skr-mini-e3-v2-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-mini-e3-v2-0/md) ## BigTreeTech SKR Mini E3 V3.0 Latest 32-bit SKR Mini E3 with STM32G0B1RET6 @ 64MHz, 4 integrated TMC2209 UART drivers, USB-C, and CAN bus support. Compact Ender 3 drop-in upgrade. Marlin and Klipper compatible. [Details](https://openhardware.directory/devices/bigtreetech-skr-mini-e3-v3-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-mini-e3-v3-0/md) ## BigTreeTech SKR Pico V1.0 Compact 32-bit 3D printer control board powered by RP2040 @ 133MHz. Designed for Voron 0.1 and small printers. 4 TMC2209 sockets, USB-C, 12–24V input. Klipper and Marlin compatible. [Details](https://openhardware.directory/devices/bigtreetech-skr-pico-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-pico-v1-0/md) ## BigTreeTech SKR 3 High-performance 32-bit 3D printer board with STM32H743VI @ 480MHz, 5 driver slots, CAN bus, FDCAN, WiFi module support, 12–24V, 10A bed output. Marlin, Klipper, and RepRapFirmware compatible. [Details](https://openhardware.directory/devices/bigtreetech-skr-3) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-3/md) ## BigTreeTech SKR 3 EZ Advanced 32-bit 3D printer board with STM32H743VI @ 480MHz and EZ driver system (tool-free). 5 EZ driver slots, CAN/FDCAN, WiFi module support, 10A bed, 12–24V. Marlin, Klipper, RRF ready. [Details](https://openhardware.directory/devices/bigtreetech-skr-3-ez) | [Markdown](https://openhardware.directory/devices/bigtreetech-skr-3-ez/md) ## Pine64 PineCone BL602 Open-source RISC-V evaluation board powered by the Bouffalo Lab BL602 WiFi+BLE5 SoC. Features 276KB SRAM, 2MB flash, USB-C with CH340 serial bridge, onboard RGB LED, JTAG header, and PCB antenna. Supports Arduino, NuttX, FreeRTOS, Rust, and OpenBeken firmware. Priced from $3.99. [Details](https://openhardware.directory/devices/pine64-pinecone-bl602) | [Markdown](https://openhardware.directory/devices/pine64-pinecone-bl602/md) ## Pine64 PineNut Model-01S Ultra-compact BL602 RISC-V WiFi+BLE5 IoT module in ESP-01S form factor with 8-pin through-hole header. Features 276KB SRAM, 2MB flash, onboard RGB LED, and PCB antenna. Supports Arduino, NuttX, FreeRTOS, and OpenBeken firmware. Priced from $1.99. [Details](https://openhardware.directory/devices/pine64-pinenut-01s) | [Markdown](https://openhardware.directory/devices/pine64-pinenut-01s/md) ## Milk-V Duo S Compact RISC-V/ARM dev board with SG2000 SoC, 512MB RAM, optional WiFi 6/BT5, dual MIPI CSI cameras, 0.5 TOPS TPU. Runs Linux and RTOS simultaneously. [Details](https://openhardware.directory/devices/milk-v-duo-s) | [Markdown](https://openhardware.directory/devices/milk-v-duo-s/md) ## Pine64 PineNut Model-12S BL602 RISC-V WiFi+BLE5 stamp module with 16 castellated pads for SMT integration. Exposes 11 GPIOs with SPI, I2C, UART, SDIO, JTAG, ADC, and DAC. Features 276KB SRAM, 2MB flash, and PCB antenna. Priced from $1.99. [Details](https://openhardware.directory/devices/pine64-pinenut-12s) | [Markdown](https://openhardware.directory/devices/pine64-pinenut-12s/md) ## Milk-V Jupiter2 First RVA23-compliant RISC-V SBC with octa-core SpacemiT K3 @ 2.4GHz, up to 32GB LPDDR5, 60 TOPS AI accelerator, WiFi 6/BT 5.2, 10GbE SFP+, real-time processor. [Details](https://openhardware.directory/devices/milk-v-jupiter2) | [Markdown](https://openhardware.directory/devices/milk-v-jupiter2/md) ## Pine64 Ox64 Pico-sized RISC-V SBC powered by the Bouffalo Lab BL808 triple-core SoC with WiFi, BLE 5.0, and Zigbee. Features 64MB PSRAM, up to 16MB flash, microSD slot, USB-C with MIPI-CSI camera support, and 26 GPIO pins. Runs Linux, NuttX, and FreeRTOS. Priced from $6. [Details](https://openhardware.directory/devices/pine64-ox64) | [Markdown](https://openhardware.directory/devices/pine64-ox64/md) ## Pine64 Oz64 RISC-V and ARM dual-ISA single board computer powered by the Sophgo SG2000 SoC with 512MB DDR3, WiFi 6, BLE 5.2, 10/100 Ethernet, dual MIPI-CSI camera ports, and 0.5 TOPS NPU. Hardware switch selects between RISC-V and ARM boot. Priced from $12.99. [Details](https://openhardware.directory/devices/pine64-oz64) | [Markdown](https://openhardware.directory/devices/pine64-oz64/md)