# 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.

**95 device listed.**

## Arduino Nano Matter

Ultra-compact Matter/Thread/BLE development board based on Silicon Labs MGM240S, bringing official Matter support to the beloved Arduino Nano form factor at 45×18mm.

[Details](https://openhardware.directory/devices/arduino-nano-matter) | [Markdown](https://openhardware.directory/devices/arduino-nano-matter/md)

## Xiaomi Pad 5 Pro

Xiaomi Pad 5 Pro Android tablet (Snapdragon 870, 6GB/8GB LPDDR5, WiFi 6) running mainline Armbian Linux via community port — a high-resolution tablet repurposed as a Linux device.

[Details](https://openhardware.directory/devices/xiaomi-pad-5-pro) | [Markdown](https://openhardware.directory/devices/xiaomi-pad-5-pro/md)

## Arduino Mega 2560 R3

High-pin-count Arduino board based on the ATmega2560 at 16 MHz with 256KB flash, 54 digital I/O pins, 16 analog inputs, and 4 hardware UARTs for complex projects.

[Details](https://openhardware.directory/devices/arduino-mega-2560-r3) | [Markdown](https://openhardware.directory/devices/arduino-mega-2560-r3/md)

## Arduino Leonardo

Arduino board with ATmega32u4 featuring native USB — no separate USB chip needed — allowing it to emulate keyboards, mice, and joysticks while maintaining full Arduino IDE compatibility.

[Details](https://openhardware.directory/devices/arduino-leonardo) | [Markdown](https://openhardware.directory/devices/arduino-leonardo/md)

## Arduino Due

Arduino's first 32-bit ARM board based on the AT91SAM3X8E Cortex-M3 at 84 MHz with 512KB flash, 96KB SRAM, dual USB ports, 2 DACs, and 12 PWM channels in Mega form factor.

[Details](https://openhardware.directory/devices/arduino-due) | [Markdown](https://openhardware.directory/devices/arduino-due/md)

## Arduino Micro

Smallest official Arduino with native USB, based on ATmega32u4 at 16 MHz. Breadboard-friendly at 48×18mm with 20 I/O pins, 12 analog inputs, and USB HID/CDC emulation capability.

[Details](https://openhardware.directory/devices/arduino-micro) | [Markdown](https://openhardware.directory/devices/arduino-micro/md)

## Arduino MKR1000

Compact Arduino board with SAMD21 ARM Cortex-M0+ and ATSAMW25 integrated WiFi (802.11 b/g/n) with cryptochip and SSL support. Built-in LiPo charger, 8 digital I/O, and 7 analog inputs in a slim 65mm form factor.

[Details](https://openhardware.directory/devices/arduino-mkr1000) | [Markdown](https://openhardware.directory/devices/arduino-mkr1000/md)

## Heltec Wireless Stick Lite V3

Compact ESP32-S3 + SX1262 LoRa development board with WiFi, BLE 5.0, and integrated battery management. Meshtastic and LoRaWAN compatible, with a slim stick form factor ideal for IoT sensor nodes and mesh networking.

[Details](https://openhardware.directory/devices/heltec-wireless-stick-lite-v3) | [Markdown](https://openhardware.directory/devices/heltec-wireless-stick-lite-v3/md)

## Heltec WiFi Kit 8

ESP8266-based IoT development board by Heltec with built-in 0.91-inch OLED display, Li-Po battery management, and WiFi connectivity in a compact 50.9x18.2mm form factor.

[Details](https://openhardware.directory/devices/heltec-wifi-kit-8) | [Markdown](https://openhardware.directory/devices/heltec-wifi-kit-8/md)

## Heltec HT1303

A mini-PCIe LoRaWAN concentrator module based on Semtech SX1303 + SX1250, enabling easy integration of LPWAN gateway capabilities into routers, Raspberry Pi, or other platforms with standard mini-PCIe slots.

[Details](https://openhardware.directory/devices/heltec-ht1303) | [Markdown](https://openhardware.directory/devices/heltec-ht1303/md)

## M5Stack Station-Bat

Industrial ESP32 controller with 1.14" IPS LCD, 6 Grove ports, INA3221 power monitor, MPU6886 IMU, RTC, 7x SK6812 LEDs, dual 18650 battery holders, USB-A power output, and 16MB flash.

[Details](https://openhardware.directory/devices/m5stack-station-bat) | [Markdown](https://openhardware.directory/devices/m5stack-station-bat/md)

## Heltec Wireless Shell V3

Ultra-compact ESP32-S3 + SX1262 LoRa module with stamp-hole design for direct PCB integration, supporting WiFi, BLE 5, and LoRa at 470-928MHz with deep sleep current under 10uA.

[Details](https://openhardware.directory/devices/heltec-wireless-shell-v3) | [Markdown](https://openhardware.directory/devices/heltec-wireless-shell-v3/md)

## M5Stack AtomS3R

Ultra-compact ESP32-S3 dev board (24x24mm) with 0.85" IPS LCD, BMI270 IMU, BMM150 magnetometer, 8MB PSRAM, IR transmitter, LP5562 RGB LED driver, and Grove port for IoT and robotics.

[Details](https://openhardware.directory/devices/m5stack-atoms3r) | [Markdown](https://openhardware.directory/devices/m5stack-atoms3r/md)

## Heltec CubeCell AM02 Module Plus

Ultra-compact LoRa/LoRaWAN module based on the ASR6502 SoC (ARM Cortex-M0+ @ 48MHz + SX1262), designed for SMT integration into custom IoT sensor nodes with 3.5uA deep sleep current.

[Details](https://openhardware.directory/devices/heltec-cubecell-am02-module-plus) | [Markdown](https://openhardware.directory/devices/heltec-cubecell-am02-module-plus/md)

## Heltec MeshPocket

Qi2 magnetic wireless charging power bank with integrated Meshtastic mesh networking node, featuring nRF52840 BLE + SX1262 LoRa radio and a 2.13" e-ink display. Available in 5000mAh and 10000mAh configurations.

[Details](https://openhardware.directory/devices/heltec-meshpocket) | [Markdown](https://openhardware.directory/devices/heltec-meshpocket/md)

## Heltec CubeCell AB01 Dev-Board (V2)

Ultra-low power LoRa/LoRaWAN development board based on the ASR6502 SiP (ARM Cortex-M0+ @ 48MHz + SX1262), with USB-C, solar panel support, and 3.5uA deep sleep current. Ideal for remote environmental sensing and battery-powered IoT nodes.

[Details](https://openhardware.directory/devices/heltec-cubecell-ab01-v2) | [Markdown](https://openhardware.directory/devices/heltec-cubecell-ab01-v2/md)

## Heltec ESP32-C3 Arduino Development Board

Ultra-compact RISC-V development board with ESP32-C3FN4, WiFi, BLE 5.0, integrated battery management, and USB-C — ideal for low-power IoT sensor nodes and wireless prototyping.

[Details](https://openhardware.directory/devices/heltec-esp32-c3) | [Markdown](https://openhardware.directory/devices/heltec-esp32-c3/md)

## Heltec CubeCell 1/2AA Node (HTCC-AB02A)

Ultra-low-power LoRa/LoRaWAN development node based on the ASR6502 SoC (ARM Cortex-M0+ @ 48MHz + SX1262), with a built-in 1/2AA battery holder, 3.5uA deep sleep, and Arduino compatibility. Ideal for remote sensor deployments.

[Details](https://openhardware.directory/devices/heltec-cubecell-htcc-ab02a) | [Markdown](https://openhardware.directory/devices/heltec-cubecell-htcc-ab02a/md)

## Heltec WiFi Kit 32 (V3)

ESP32-S3-based IoT development board with built-in 0.96" OLED display, lithium battery management, WiFi and Bluetooth 5.0 connectivity, and USB-C interface in a compact 50mm form factor.

[Details](https://openhardware.directory/devices/heltec-wifi-kit-32-v3) | [Markdown](https://openhardware.directory/devices/heltec-wifi-kit-32-v3/md)

## Heltec CubeCell GPS-6502 (HTCC-AB02S)

LoRa + GPS development board based on ASR6502 SiP (ARM Cortex-M0+ with SX1262), featuring integrated AIR530Z GPS/BeiDou module, 0.96" OLED display, solar charging, and ultra-low 21uA deep sleep current for long-range IoT tracking applications.

[Details](https://openhardware.directory/devices/heltec-cubecell-gps-6502-htcc-ab02s) | [Markdown](https://openhardware.directory/devices/heltec-cubecell-gps-6502-htcc-ab02s/md)

## Heltec HRI-485X

Industrial RS-485 wireless converter with ESP32, LoRa SX1262, Ethernet, and ESPHome support. Converts RS-485/Modbus serial data to LoRa, LoRaWAN, LTE, or Ethernet for long-range industrial IoT communication. DIN rail mountable with IP65 protection and 4.5-28V wide voltage input.

[Details](https://openhardware.directory/devices/heltec-hri-485x) | [Markdown](https://openhardware.directory/devices/heltec-hri-485x/md)

## Heltec HT-DE01 Multi Size E-Ink Drive Board

A compact universal e-ink driver board based on ESP32-S3FN8 with WiFi and Bluetooth connectivity, 24-pin FFC interface compatible with most e-ink displays, USB-C and LiPo battery support, and Arduino development environment.

[Details](https://openhardware.directory/devices/heltec-ht-de01) | [Markdown](https://openhardware.directory/devices/heltec-ht-de01/md)

## Heltec Wireless Tracker V2

ESP32-S3 development board with SX1262 LoRa (28dBm), UC6580 dual-frequency GNSS, 0.96" TFT display, solar charging, and Meshtastic/MeshCore support for GPS tracking and mesh networking.

[Details](https://openhardware.directory/devices/heltec-wireless-tracker-v2) | [Markdown](https://openhardware.directory/devices/heltec-wireless-tracker-v2/md)

## Heltec HT-CT62

Ultra-compact ESP32-C3 + SX1262 LoRa/LoRaWAN module with WiFi and BLE, designed for SMT integration into IoT devices. Features 10uA deep sleep, +21dBm TX power, and Meshtastic compatibility in a tiny 17.78mm stamp-hole package.

[Details](https://openhardware.directory/devices/heltec-ht-ct62) | [Markdown](https://openhardware.directory/devices/heltec-ht-ct62/md)

## Heltec Wireless Bridge

ESP32 + SX1276 LoRa multi-protocol bridge in an aluminum enclosure, converting between WiFi, Bluetooth, and LoRa with 8MB flash and 8MB PSRAM.

[Details](https://openhardware.directory/devices/heltec-wireless-bridge) | [Markdown](https://openhardware.directory/devices/heltec-wireless-bridge/md)

## Heltec HT-M7603 Indoor LoRa Gateway

Cost-effective 8-channel indoor LoRaWAN gateway based on MT7628 + SX1303/SX1250, supporting WiFi and Ethernet uplink with web-based configuration for TTN, ChirpStack, and custom MQTT servers.

[Details](https://openhardware.directory/devices/heltec-ht-m7603) | [Markdown](https://openhardware.directory/devices/heltec-ht-m7603/md)

## Heltec Wireless Tracker

ESP32-S3 development board with integrated SX1262 LoRa transceiver, UC6580 dual-frequency GNSS receiver, and 0.96-inch TFT display for IoT asset tracking, Meshtastic mesh networking, and LoRaWAN applications.

[Details](https://openhardware.directory/devices/heltec-wireless-tracker) | [Markdown](https://openhardware.directory/devices/heltec-wireless-tracker/md)

## Heltec HT-M00S Single Channel LoRa Gateway

A compact, wall-mountable single-channel LoRaWAN gateway based on the HT-CT62 module (ESP32-C3 + SX1262). Designed for indoor use with a built-in PCB antenna, it can listen to over a dozen LoRa nodes simultaneously and forward data to cloud servers via WiFi. Available in 470MHz, 868MHz, and 915MHz variants.

[Details](https://openhardware.directory/devices/heltec-ht-m00s) | [Markdown](https://openhardware.directory/devices/heltec-ht-m00s/md)

## Heltec Capsule Sensor V3

Ultra-compact IP65 waterproof LoRa sensor capsule with ESP32-S3, SX1262 LoRa, GNSS, temperature/humidity, barometric pressure, and 3-axis accelerometer. Meshtastic-compatible with 250mAh battery and over 1 year battery life.

[Details](https://openhardware.directory/devices/heltec-capsule-sensor-v3) | [Markdown](https://openhardware.directory/devices/heltec-capsule-sensor-v3/md)

## Heltec Wireless Stick V3

Compact ESP32-S3 development board with integrated SX1262 LoRa transceiver and 0.49-inch OLED display. Supports Meshtastic, LoRaWAN, WiFi, and BLE 5.0 in a breadboard-friendly form factor with battery management.

[Details](https://openhardware.directory/devices/heltec-wireless-stick-v3) | [Markdown](https://openhardware.directory/devices/heltec-wireless-stick-v3/md)

## CubeCell AM01 Module V2 (HTCC-AM01)

Ultra-compact 18x18mm LoRa/LoRaWAN module based on the ASR6502 SiP with integrated ARM Cortex-M0+ MCU and Semtech SX1262 transceiver. Features 3.5uA deep sleep, Arduino compatibility, and CE/FCC certification. Designed for SMT integration into custom IoT sensor nodes.

[Details](https://openhardware.directory/devices/heltec-cubecell-am01-v2) | [Markdown](https://openhardware.directory/devices/heltec-cubecell-am01-v2/md)

## Heltec HRI-4853

ESP32-based RS-485 to Ethernet/LTE converter (DTU) with built-in web configuration, Modbus support, DIN-rail mounting, and ESPHome compatibility for industrial IoT and Home Assistant integration.

[Details](https://openhardware.directory/devices/heltec-hri-4853) | [Markdown](https://openhardware.directory/devices/heltec-hri-4853/md)

## Heltec Vision Master E213

ESP32-S3 development board with 2.13-inch E-Paper display and optional SX1262 LoRa radio, supporting Meshtastic, LoRaWAN, Arduino, and MicroPython. Features WiFi, BLE 5.0, ultra-low 20uA deep sleep, lithium battery management, and dual SH2.0 sensor ports.

[Details](https://openhardware.directory/devices/heltec-vision-master-e213) | [Markdown](https://openhardware.directory/devices/heltec-vision-master-e213/md)

## Heltec Vision Master E290

ESP32-S3 development board with 2.9-inch e-ink display and optional SX1262 LoRa radio, featuring Raspberry Pi GPIO header, Meshtastic support, and 18uA deep sleep for battery-powered IoT and mesh networking applications.

[Details](https://openhardware.directory/devices/heltec-vision-master-e290) | [Markdown](https://openhardware.directory/devices/heltec-vision-master-e290/md)

## Heltec Vision Master T190

ESP32-S3 development board with optional SX1262 LoRa module and 1.9-inch TFT color display. Supports Meshtastic, LoRaWAN, Arduino, MicroPython, and features integrated battery management with 18uA deep sleep.

[Details](https://openhardware.directory/devices/heltec-vision-master-t190) | [Markdown](https://openhardware.directory/devices/heltec-vision-master-t190/md)

## Heltec Wireless Paper

ESP32-S3 + SX1262 LoRa E-Ink development board with 2.13" e-paper display, WiFi, BLE 5.0, and LoRa connectivity. Designed for electronic shelf labels, Meshtastic mesh nodes, and low-power IoT sensor displays.

[Details](https://openhardware.directory/devices/heltec-wireless-paper) | [Markdown](https://openhardware.directory/devices/heltec-wireless-paper/md)

## Heltec HT-M2802 Indoor LoRa Gateway

Indoor edge computing LoRaWAN gateway with Rockchip RK3566 quad-core Cortex-A55 processor, SX1303+SX1250 8-channel LoRa radio, 2GB DDR4, 32GB eMMC, Gigabit Ethernet, dual-band WiFi, Bluetooth 4.0, and pre-installed Debian Linux with Docker support.

[Details](https://openhardware.directory/devices/heltec-ht-m2802) | [Markdown](https://openhardware.directory/devices/heltec-ht-m2802/md)

## Heltec Mesh Node T114

Compact nRF52840 + SX1262 LoRa development board with BLE 5.0, optional 1.14" TFT display and L76K GPS module. Designed for Meshtastic mesh networking, LoRaWAN, and battery-powered IoT deployments with ultra-low 11uA deep sleep current and solar panel support.

[Details](https://openhardware.directory/devices/heltec-mesh-node-t114) | [Markdown](https://openhardware.directory/devices/heltec-mesh-node-t114/md)

## CubeCell Dev-Board Plus (HTCC-AB02)

Heltec CubeCell HTCC-AB02 is an ultra-low-power LoRa/LoRaWAN development board based on the ASR6502 SoC (ARM Cortex-M0+ with integrated SX1262), featuring a 0.96" OLED display, solar panel input, and lithium battery management. Ideal for long-range IoT sensor nodes and agricultural monitoring.

[Details](https://openhardware.directory/devices/heltec-cubecell-htcc-ab02) | [Markdown](https://openhardware.directory/devices/heltec-cubecell-htcc-ab02/md)

## Heltec HT-H7608 V2

WiFi HaLow (802.11ah) router and IoT gateway with 2.4GHz dual-band, up to 1km+ range, mesh networking, Ethernet, and OpenWrt-compatible MT7628 SoC.

[Details](https://openhardware.directory/devices/heltec-ht-h7608) | [Markdown](https://openhardware.directory/devices/heltec-ht-h7608/md)

## Heltec Turtle Board

Ultra-low-power LoRa development board with STM32L432KC ARM Cortex-M4 MCU and SX1276 transceiver, capable of 10-year battery life on AAA cells using the RadioShuttle peer-to-peer protocol.

[Details](https://openhardware.directory/devices/heltec-turtle-board) | [Markdown](https://openhardware.directory/devices/heltec-turtle-board/md)

## Heltec HT-M00 Dual Channel LoRa Gateway

A compact, low-cost dual-channel LoRaWAN gateway based on ESP32 and dual SX1276 transceivers, designed for indoor LoRa coverage of 1500-2000 square meters with support for SF7-SF12 spreading factors and LoRaWAN Class A/C protocols.

[Details](https://openhardware.directory/devices/heltec-ht-m00) | [Markdown](https://openhardware.directory/devices/heltec-ht-m00/md)

## Heltec HT-M01S Indoor LoRa Gateway (Rev.2.0)

Compact 8-channel LoRaWAN gateway based on ESP32 and SX1303 + SX1250, with WiFi and Ethernet backhaul, 1.8-inch TFT display, and aluminum housing. Supports LoRaWAN Class A/C, TTN, and ChirpStack.

[Details](https://openhardware.directory/devices/heltec-ht-m01s-v2) | [Markdown](https://openhardware.directory/devices/heltec-ht-m01s-v2/md)

## Heltec LoRa Kit 151

Ultra-low-power LoRaWAN development kit based on STM32L151CBU6 ARM Cortex-M3 MCU and Semtech SX1278 LoRa transceiver, with 6uA deep sleep current, integrated battery management, and CE certification.

[Details](https://openhardware.directory/devices/heltec-lora-kit-151) | [Markdown](https://openhardware.directory/devices/heltec-lora-kit-151/md)

## Arduino UNO R4 WiFi

Arduino's flagship UNO board upgraded with Renesas RA4M1 ARM Cortex-M4F at 48MHz, ESP32-S3 WiFi/BLE 5.0, built-in 12×8 LED matrix, 12-bit DAC, CAN bus, op-amp, and Qwiic connector — all in the classic UNO form factor at 5V.

[Details](https://openhardware.directory/devices/arduino-uno-r4-wifi) | [Markdown](https://openhardware.directory/devices/arduino-uno-r4-wifi/md)

## Arduino UNO R4 Minima

The affordable entry to Arduino's R4 generation — Renesas RA4M1 ARM Cortex-M4F at 48MHz with 256KB flash, 32KB SRAM, 12-bit DAC, CAN bus, op-amp, and USB-C in the classic UNO form factor at 5V. No wireless, pure microcontroller power.

[Details](https://openhardware.directory/devices/arduino-uno-r4-minima) | [Markdown](https://openhardware.directory/devices/arduino-uno-r4-minima/md)

## Arduino Nano ESP32

Arduino Nano form factor powered by ESP32-S3 with WiFi 802.11 b/g/n, Bluetooth LE 5.0, dual-core Xtensa LX7 at 240MHz, 8MB flash, 512KB SRAM, USB-C, and HID support — Arduino's compact IoT powerhouse with MicroPython support.

[Details](https://openhardware.directory/devices/arduino-nano-esp32) | [Markdown](https://openhardware.directory/devices/arduino-nano-esp32/md)

## Arduino Nano Every

Compact 45×18mm Arduino Nano with ATMega4809 at 20MHz — 48KB flash, 6KB SRAM, 5V logic, 14 digital I/O (5 PWM), 8 analog inputs, and USB-C. A modern, affordable 8-bit board for embedded projects and breadboard prototyping.

[Details](https://openhardware.directory/devices/arduino-nano-every) | [Markdown](https://openhardware.directory/devices/arduino-nano-every/md)

## Arduino GIGA R1 WiFi

Arduino's most powerful board — dual-core STM32H747XI with Cortex-M7 at 480MHz + Cortex-M4 at 240MHz, 2MB flash, 1MB RAM, WiFi, Bluetooth, 76 GPIO, USB-A + USB-C, 3.5mm audio jack, camera connector, and CAN bus in Mega/Due form factor.

[Details](https://openhardware.directory/devices/arduino-giga-r1-wifi) | [Markdown](https://openhardware.directory/devices/arduino-giga-r1-wifi/md)

## Arduino Nano 33 BLE Sense Rev2

Sensor-packed Nano board with nRF52840 ARM Cortex-M4F at 64MHz, BLE 5.0, 9-axis IMU, microphone, temperature, humidity, pressure, light, and gesture sensors — designed for TinyML and edge AI projects in a 45×18mm form factor.

[Details](https://openhardware.directory/devices/arduino-nano-33-ble-sense-rev2) | [Markdown](https://openhardware.directory/devices/arduino-nano-33-ble-sense-rev2/md)

## Arduino Nano RP2040 Connect

Nano form factor board with RP2040 dual-core Cortex-M0+ at 133MHz, 16MB flash, 264KB SRAM, WiFi 802.11 b/g/n and BLE via u-blox NINA-W102, built-in 6-axis IMU and microphone, 22 digital I/O with 20 PWM channels.

[Details](https://openhardware.directory/devices/arduino-nano-rp2040-connect) | [Markdown](https://openhardware.directory/devices/arduino-nano-rp2040-connect/md)

## Arduino Nano R4

The newest Arduino Nano — Renesas RA4M1 ARM Cortex-M4F at 48MHz with 256KB flash, 32KB SRAM, Qwiic connector, RGB LED, castellated pins, and USB-C in an ultra-compact 43×17mm form factor. No wireless, pure embedded power.

[Details](https://openhardware.directory/devices/arduino-nano-r4) | [Markdown](https://openhardware.directory/devices/arduino-nano-r4/md)

## Arduino UNO Q

Arduino's first Linux-capable UNO — Qualcomm Dragonwing QRB2210 quad-core Cortex-A53 + STM32U585 real-time co-processor, 2GB/4GB RAM, 16GB eMMC, WiFi 5, Bluetooth 5.1, 8×13 LED matrix, USB-C, and AI-ready with Arduino App Lab in the classic UNO form factor.

[Details](https://openhardware.directory/devices/arduino-uno-q) | [Markdown](https://openhardware.directory/devices/arduino-uno-q/md)

## Arduino Uno Rev3

The original Arduino UNO — the world's most popular development board with ATmega328P at 16MHz, 32KB flash, 2KB SRAM, 14 digital I/O (6 PWM), 6 analog inputs, USB-B, and 5V operation. The gateway to electronics and programming for millions.

[Details](https://openhardware.directory/devices/arduino-uno-rev3) | [Markdown](https://openhardware.directory/devices/arduino-uno-rev3/md)

## Arduino Nano

The classic breadboard-friendly Arduino — ATmega328P at 16MHz, 32KB flash, 2KB SRAM, 14 digital I/O (6 PWM), 8 analog inputs, Mini-B USB, and 5V operation in a tiny 45×18mm form factor. The compact original.

[Details](https://openhardware.directory/devices/arduino-nano) | [Markdown](https://openhardware.directory/devices/arduino-nano/md)

## Arduino Stella

Arduino's Ultra-Wideband (UWB) board with nRF52840 ARM Cortex-M4F, Truesense DCU040 UWB module, BLE 5.0, and NFC — enabling centimeter-accurate indoor positioning, asset tracking, and secure proximity interactions.

[Details](https://openhardware.directory/devices/arduino-stella) | [Markdown](https://openhardware.directory/devices/arduino-stella/md)

## Arduino MKR WAN 1310

LoRa-enabled IoT board with SAMD21 ARM Cortex-M0+ at 48MHz, Murata CMWX1ZZABZ LoRa module, ECC508 crypto chip, 2MB SPI flash, onboard LiPo charger, and 104\u00b5A low-power mode — designed for long-range, battery-powered IoT sensor networks.

[Details](https://openhardware.directory/devices/arduino-mkr-wan-1310) | [Markdown](https://openhardware.directory/devices/arduino-mkr-wan-1310/md)

## Arduino Portenta X8

Industrial-grade Linux SoM with NXP i.MX 8M Mini quad-core Cortex-A53 at 1.8GHz + STM32H747 dual-core Cortex-M7/M4, 2GB RAM, WiFi/BLE, NXP SE050 hardware security, Docker containers, and OTA updates for edge computing.

[Details](https://openhardware.directory/devices/arduino-portenta-x8) | [Markdown](https://openhardware.directory/devices/arduino-portenta-x8/md)

## Arduino Portenta C33

Cost-effective Portenta module with Renesas RA6M5 ARM Cortex-M33 at 200MHz, 2MB flash, 512KB SRAM, WiFi/BLE, hardware security, and Portenta/MKR compatibility — bringing industrial IoT capabilities at a fraction of the X8 price.

[Details](https://openhardware.directory/devices/arduino-portenta-c33) | [Markdown](https://openhardware.directory/devices/arduino-portenta-c33/md)

## Arduino Nicla Voice

Tiny 22.86mm AI voice module with nRF52840 BLE 5.0, Syntiant NDP120 neural decision processor, MEMS microphone, 6-axis IMU, and magnetometer — runs always-on voice recognition and audio anomaly detection at ultra-low power.

[Details](https://openhardware.directory/devices/arduino-nicla-voice) | [Markdown](https://openhardware.directory/devices/arduino-nicla-voice/md)

## Arduino Nicla Vision

Tiny 22.86mm AI vision module with STM32H747 dual-core Cortex-M7/M4, 2MP camera, WiFi/BLE, 6-axis IMU, microphone, and time-of-flight sensor — runs TinyML image recognition and OpenMV/MicroPython at the edge.

[Details](https://openhardware.directory/devices/arduino-nicla-vision) | [Markdown](https://openhardware.directory/devices/arduino-nicla-vision/md)

## Arduino Nicla Sense ME

Compact 22.86mm sensor module with nRF52840 BLE 5.0 and four Bosch sensors — 9-axis IMU with AI, barometric pressure, temperature/humidity, and gas/CO2 detection. Edge AI-powered environmental and motion sensing in a coin-sized package.

[Details](https://openhardware.directory/devices/arduino-nicla-sense-me) | [Markdown](https://openhardware.directory/devices/arduino-nicla-sense-me/md)

## Arduino Opta WiFi

Industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, WiFi, BLE, Ethernet, 4\u00d72.3kW relays, Modbus TCP/RTU, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — co-developed with Finder for real industrial automation.

[Details](https://openhardware.directory/devices/arduino-opta-wifi) | [Markdown](https://openhardware.directory/devices/arduino-opta-wifi/md)

## Arduino Opta Lite

Entry-level industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, Ethernet, 4\u00d72.3kW relays, Modbus TCP, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — the affordable path to Arduino-powered industrial control.

[Details](https://openhardware.directory/devices/arduino-opta-lite) | [Markdown](https://openhardware.directory/devices/arduino-opta-lite/md)

## BIQU RGBDuino UNO V1.2

Arduino UNO-compatible development board based on ATmega328P-AU at 16MHz/5V, featuring RGB LED indicators. Available in Geek Duck (V1.1) and Jenny (V1.2) variants for maker and education projects.

[Details](https://openhardware.directory/devices/biqu-rgbduino-uno-v1-2) | [Markdown](https://openhardware.directory/devices/biqu-rgbduino-uno-v1-2/md)

## BigTreeTech Pi TFT43 V2.0

4.3-inch 800x480 IPS capacitive touchscreen expansion board for BTT Pi, CB1, CB2, and Raspberry Pi CM4. Connects via 40-pin GPIO DPI interface with GT911 touch controller for Klipper UI.

[Details](https://openhardware.directory/devices/bigtreetech-pi-tft43-v2-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-pi-tft43-v2-0/md)

## BigTreeTech ESP8266 WiFi Module

ESP8266-based WiFi transceiver expansion module for BTT 3D printer control boards. Available in ESP12S and ESP-07 variants, enabling wireless connectivity and remote control via serial UART.

[Details](https://openhardware.directory/devices/bigtreetech-esp8266-wifi-module) | [Markdown](https://openhardware.directory/devices/bigtreetech-esp8266-wifi-module/md)

## BigTreeTech HDMI5 V1.0

5-inch 800x480 IPS HDMI capacitive touchscreen display. Compatible with Raspberry Pi, BTT SBCs, and any HDMI source. USB-C data port, 3.5mm audio jack, 5-point touch, auto-driver on PC.

[Details](https://openhardware.directory/devices/bigtreetech-hdmi5-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-hdmi5-v1-0/md)

## CompuLab IOT-GATE-IMX8PLUS

Industrial IoT edge gateway with NXP i.MX8M Plus quad-core Cortex-A53 at 1.8GHz, up to 8GB RAM, dual Ethernet (PoE), WiFi/BT, optional 4G LTE, 3x RS485/RS232, USB 3.0, TPM, and modular I/O expansion — designed for industrial-grade edge computing.

[Details](https://openhardware.directory/devices/compulab-iot-gate-imx8plus) | [Markdown](https://openhardware.directory/devices/compulab-iot-gate-imx8plus/md)

## BigTreeTech HDMI7 V1.0

7-inch 1024x600 IPS HDMI capacitive touchscreen display. Universal compatibility with Raspberry Pi, BTT SBCs, and any HDMI source. USB-C touch, 3.5mm audio output, 5-point touch, 160° viewing angle.

[Details](https://openhardware.directory/devices/bigtreetech-hdmi7-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-hdmi7-v1-0/md)

## BigTreeTech S42C V1.0 Closed Loop Stepper Driver

NEMA 17 (42mm) stepper motor closed-loop driver board with OLED display. Uses encoder feedback to eliminate missed steps and improve high-speed 3D printer and CNC motor performance.

[Details](https://openhardware.directory/devices/bigtreetech-s42c-v1-0-closed-loop-stepper-driver) | [Markdown](https://openhardware.directory/devices/bigtreetech-s42c-v1-0-closed-loop-stepper-driver/md)

## BigTreeTech EBB 36/42 CAN Bus Toolhead Board

CAN bus toolhead board for 36/42mm stepper extruders. Features STM32G0B1 MCU, onboard TMC2209, ADXL345 accelerometer, PT100/PT1000 support, and USB/CAN connectivity for Klipper 3D printers.

[Details](https://openhardware.directory/devices/bigtreetech-ebb-36-42-can-bus-toolhead-board) | [Markdown](https://openhardware.directory/devices/bigtreetech-ebb-36-42-can-bus-toolhead-board/md)

## CompuLab IOT-DIN-IMX8PLUS

DIN-rail industrial IoT gateway with NXP i.MX8M Plus quad-core Cortex-A53 at 1.8GHz, up to 8GB RAM, dual LAN, CAN bus, RS485/RS232, optional LTE, stackable I/O modules (up to 12x serial, 32x DI/DO, ADC), and 15-year availability.

[Details](https://openhardware.directory/devices/compulab-iot-din-imx8plus) | [Markdown](https://openhardware.directory/devices/compulab-iot-din-imx8plus/md)

## BigTreeTech Panda Touch

5-inch 800x480 IPS WiFi touchscreen for Bambu Lab X1, P1, and A1 series 3D printers. ESP32-S3 based, 16MB flash, 8MB PSRAM, built-in battery for portable use, supports up to 4 printers simultaneously.

[Details](https://openhardware.directory/devices/bigtreetech-panda-touch) | [Markdown](https://openhardware.directory/devices/bigtreetech-panda-touch/md)

## BigTreeTech ADXL345 V2.0 Accelerometer Board

RP2040-based ADXL345 accelerometer board for Klipper input shaping and resonance compensation on 3D printers. Connects via USB Type-C with ESD protection. Board size: 33.25 × 15.5mm.

[Details](https://openhardware.directory/devices/bigtreetech-adxl345-v2-0-accelerometer-board) | [Markdown](https://openhardware.directory/devices/bigtreetech-adxl345-v2-0-accelerometer-board/md)

## BigTreeTech EBB SB2209 CAN Toolhead Board (RP2040)

Toolhead board designed for the Voron StealthBurner. Powered by RP2040, supports CAN and USB, includes TMC2209, ADXL345 accelerometer, and PT100/PT1000 for Klipper 3D printers.

[Details](https://openhardware.directory/devices/bigtreetech-ebb-sb2209-can-toolhead-board-rp2040) | [Markdown](https://openhardware.directory/devices/bigtreetech-ebb-sb2209-can-toolhead-board-rp2040/md)

## BigTreeTech K-Touch

5-inch 800x480 IPS WiFi touchscreen controller for Klipper printers. ESP32-S3 based, 16MB flash, 8MB PSRAM, built-in battery for 30 minutes portable use, supports up to 50 Klipper printers.

[Details](https://openhardware.directory/devices/bigtreetech-k-touch) | [Markdown](https://openhardware.directory/devices/bigtreetech-k-touch/md)

## BigTreeTech MicroProbe V2.0

Compact automatic bed leveling probe for 3D printers including Ender-3, B1, and H2 extruder platforms. Supports Voron Stealthburner, EVA, and other popular toolhead mounts. Open source hardware.

[Details](https://openhardware.directory/devices/bigtreetech-microprobe-v2-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-microprobe-v2-0/md)

## BigTreeTech MMB CAN V2.0 Multi-Material Control Board

CAN bus control board for the Enraged Rabbit Carrot Feeder (ERCF) multi-material system. Features STM32G0B1 MCU, 4 EZ stepper driver slots, USB/CAN connectivity, and full Klipper support.

[Details](https://openhardware.directory/devices/bigtreetech-mmb-can-v2-0-multi-material-control-board) | [Markdown](https://openhardware.directory/devices/bigtreetech-mmb-can-v2-0-multi-material-control-board/md)

## BigTreeTech KNOMI 2

1.28-inch round 240x240 LCD display for Voron StealthBurner toolhead. ESP32 MCU with WiFi and Bluetooth LE, shows print status, temperatures, and progress with customizable animated UI.

[Details](https://openhardware.directory/devices/bigtreetech-knomi-2) | [Markdown](https://openhardware.directory/devices/bigtreetech-knomi-2/md)

## BigTreeTech BTT RRF WiFi V1.0 Module

ESP8266-based WiFi expansion module for RepRapFirmware (Duet-style) boards. Adds wireless connectivity to BTT SKR V1.3, SKR V1.4 Turbo, and compatible boards running RRF or Marlin firmware.

[Details](https://openhardware.directory/devices/bigtreetech-btt-rrf-wifi-v1-0-module) | [Markdown](https://openhardware.directory/devices/bigtreetech-btt-rrf-wifi-v1-0-module/md)

## BigTreeTech Eddy Eddy Current Inductive Probe

Eddy current inductive bed leveling probe for Klipper 3D printers. Offers 0.5μm precision, rapid bed mesh scanning, temperature compensation (USB), and works as Z-endstop. Mounts on standard Voron X carriage.

[Details](https://openhardware.directory/devices/bigtreetech-eddy-eddy-current-inductive-probe) | [Markdown](https://openhardware.directory/devices/bigtreetech-eddy-eddy-current-inductive-probe/md)

## BigTreeTech Panda Knomi

1.28-inch round 240x240 display for Bambu Lab A1, X1, and P1 series printers. ESP32 MCU with 2.4GHz WiFi, customizable GIF animations, shows print status and temperatures wirelessly.

[Details](https://openhardware.directory/devices/bigtreetech-panda-knomi) | [Markdown](https://openhardware.directory/devices/bigtreetech-panda-knomi/md)

## BigTreeTech Panda Branch V1.0

USB power expansion board for Bambu Lab X1/P1/A1 series printers. Provides 4x USB-A 5V outputs at up to 2.7A peak from a 24V input, with overcurrent protection and MX3.0 AMS power interfaces.

[Details](https://openhardware.directory/devices/bigtreetech-panda-branch-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-panda-branch-v1-0/md)

## BigTreeTech SKSM V1.0 Supercapacitor Power Module

Supercapacitor-based power loss recovery module for Klipper 3D printers. Provides ~13 seconds of 5W backup power via dual 2.7V 20F supercaps, enabling safe shutdown on power failure.

[Details](https://openhardware.directory/devices/bigtreetech-sksm-v1-0-supercapacitor-power-module) | [Markdown](https://openhardware.directory/devices/bigtreetech-sksm-v1-0-supercapacitor-power-module/md)

## BigTreeTech CEB CAN Expansion Board

CAN bus power distribution and expansion board for BigTreeTech toolhead boards. Provides multiple 24V + CAN pass-through ports to daisy-chain toolhead boards in Klipper 3D printer setups.

[Details](https://openhardware.directory/devices/bigtreetech-ceb-can-expansion-board) | [Markdown](https://openhardware.directory/devices/bigtreetech-ceb-can-expansion-board/md)

## BigTreeTech Panda PWR

Intelligent power management module with ESP8684 MCU, 4MB flash, 2.4GHz WiFi, and dual USB outputs. Enables remote power control, consumption monitoring, countdown shutdown, and Home Assistant integration.

[Details](https://openhardware.directory/devices/bigtreetech-panda-pwr) | [Markdown](https://openhardware.directory/devices/bigtreetech-panda-pwr/md)

## BigTreeTech HBB Handheld Button Board

RP2040-based handheld button board with 7 mechanical switches and RGB NeoPixel LEDs for manual control of Klipper 3D printers. Triggers homing, heating, motor disable and other macros via USB.

[Details](https://openhardware.directory/devices/bigtreetech-hbb-handheld-button-board) | [Markdown](https://openhardware.directory/devices/bigtreetech-hbb-handheld-button-board/md)

## BigTreeTech K-Hub V1.0

4-port USB 2.0 hub for Klipper-based 3D printers with dual 24V/5V power input support. Expands a single USB host port to connect multiple peripherals like ADXL345, EBB boards, and cameras simultaneously.

[Details](https://openhardware.directory/devices/bigtreetech-k-hub-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-k-hub-v1-0/md)

## BIQU AJAX TD1S

Filament Transmission Distance (TD) and HEX color measurement tool for 3D printing. Captures true filament color and TD values for HueForge integration to build accurate filament libraries and fix color shifts in multi-color prints.

[Details](https://openhardware.directory/devices/biqu-ajax-td1s) | [Markdown](https://openhardware.directory/devices/biqu-ajax-td1s/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)

## 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)

## Milk-V Titan

Mini-ITX RISC-V board with octa-core UltraRISC UR-DP1000 @ 2GHz, up to 64GB DDR4 ECC, PCIe Gen4 x16, onboard BMC, hardware virtualization. RVA22 compliant, FCC/CE certified.

[Details](https://openhardware.directory/devices/milk-v-titan) | [Markdown](https://openhardware.directory/devices/milk-v-titan/md)