# 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. **79 device listed.** ## LILYGO T8-C3 LILYGO T8-C3 is a compact ESP32-C3 development board featuring Wi-Fi, BLE 5.0, 4MB flash, TF card slot, and USB Type-C, requiring the T-U2T adapter for programming. [Details](https://openhardware.directory/devices/lilygo-t8-c3) | [Markdown](https://openhardware.directory/devices/lilygo-t8-c3/md) ## LILYGO T-OI Plus LILYGO T-OI Plus is a compact ESP32-C3 development board with Wi-Fi, BLE 5.0, Grove connectors, and optional 16340 battery holder, designed to fit Sonoff BASICR2 enclosures. [Details](https://openhardware.directory/devices/lilygo-t-oi-plus) | [Markdown](https://openhardware.directory/devices/lilygo-t-oi-plus/md) ## LILYGO T-01C3 LILYGO T-01C3 is an ultra-compact ESP32-C3 RISC-V module with Wi-Fi and BLE 5.0, available with or without pre-soldered pins, featuring 5.33µA deep sleep current. [Details](https://openhardware.directory/devices/lilygo-t-01c3) | [Markdown](https://openhardware.directory/devices/lilygo-t-01c3/md) ## LILYGO T-Micro32 Plus LILYGO T-Micro32 Plus is an upgraded compact ESP32 module with 8MB flash, 2MB PSRAM, expanded GPIO, and an improved RED C3 ceramic antenna for stronger wireless performance. [Details](https://openhardware.directory/devices/lilygo-t-micro32-plus) | [Markdown](https://openhardware.directory/devices/lilygo-t-micro32-plus/md) ## LILYGO T-Micro32 V2.0 LILYGO T-Micro32 V2.0 is a 45%-smaller ESP32 PICO-D4 module with integrated IPEX antenna connector, designed for space-constrained embedded product designs. [Details](https://openhardware.directory/devices/lilygo-t-micro32-v2) | [Markdown](https://openhardware.directory/devices/lilygo-t-micro32-v2/md) ## LILYGO T-Micro32 S3 LILYGO T-Micro32 S3 is an ultra-compact ESP32-S3FH4R2 module with Wi-Fi, BLE 5.0, 4MB flash, 2MB PSRAM, and dual-core Xtensa LX7 processor in a minimal footprint. [Details](https://openhardware.directory/devices/lilygo-t-micro32-s3) | [Markdown](https://openhardware.directory/devices/lilygo-t-micro32-s3/md) ## LILYGO LoRa V1.3 LILYGO LoRa V1.3 is an ESP32 development board with SX1276 LoRa radio at 868/915 MHz, optional 0.96-inch OLED display, Wi-Fi, BLE, and 4MB flash for IoT and LoRa applications. [Details](https://openhardware.directory/devices/lilygo-lora-v1-3) | [Markdown](https://openhardware.directory/devices/lilygo-lora-v1-3/md) ## LILYGO T4 LILYGO T4 is an ESP32 development board with 8MB PSRAM, optional 2.2 or 2.4-inch ILI9341 TFT LCD display, Wi-Fi, Bluetooth 4.2 BLE, and Li-Po battery support. [Details](https://openhardware.directory/devices/lilygo-t4) | [Markdown](https://openhardware.directory/devices/lilygo-t4/md) ## LILYGO T4 S3 LILYGO T4 S3 is an ESP32-S3 development board with a 2.41-inch AMOLED touchscreen (450x600), 16MB flash, 8MB PSRAM, microSD slot, Wi-Fi, and Bluetooth 5 LE. [Details](https://openhardware.directory/devices/lilygo-t4-s3) | [Markdown](https://openhardware.directory/devices/lilygo-t4-s3/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) ## 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) ## PicoGlitcher V3 Open-source voltage glitching tool for hardware security research, based on Raspberry Pi Pico 2 (RP2350) with dual high-power MOSFETs, 4 selectable voltage levels, and adjustable Schmitt trigger inputs. [Details](https://openhardware.directory/devices/picoglitcher-v3) | [Markdown](https://openhardware.directory/devices/picoglitcher-v3/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) ## madflight FC3v2 RP2350B Flight Controller Open-source flight controller board with RP2350B MCU, 10-DOF sensor suite (gyro, accelerometer, barometer, magnetometer), INA226 battery monitor, microSD with 4-bit SDIO, and DC-DC converter. 50.7x41.6mm, 6.3g. [Details](https://openhardware.directory/devices/madflight-fc3v2-rp2350b) | [Markdown](https://openhardware.directory/devices/madflight-fc3v2-rp2350b/md) ## CUBEEK CubeSat Educational Kit Open-source 1U CubeSat educational kit powered by Arduino Pro Mini with LoRa communication, multi-sensor payload (IMU, barometer, GPS, temperature), solar-powered EPS, and ground station dashboard for learning satellite engineering. [Details](https://openhardware.directory/devices/cubeek-cubesat-educational-kit) | [Markdown](https://openhardware.directory/devices/cubeek-cubesat-educational-kit/md) ## Raspberry Pi Pico W Wireless microcontroller board featuring the RP2040 dual-core Cortex-M0+ processor with built-in WiFi 4 and Bluetooth 5.2 (BLE). Supports MicroPython, CircuitPython, and C/C++ development. [Details](https://openhardware.directory/devices/raspberry-pi-pico-w) | [Markdown](https://openhardware.directory/devices/raspberry-pi-pico-w/md) ## Waveshare RP2040-Zero Ultra-compact RP2040 microcontroller board in a tiny form factor. Features dual-core Cortex-M0+ at 133 MHz, USB-C, onboard WS2812 RGB LED, and castellated pads. Raspberry Pi Pico compatible. [Details](https://openhardware.directory/devices/rp2040-zero) | [Markdown](https://openhardware.directory/devices/rp2040-zero/md) ## LOLIN D1 Mini V3 Compact WiFi development board based on the ESP8266-12F module. Features 4 MB flash, 11 digital I/O pins, Micro-USB, and a rich shield ecosystem. One of the most popular boards for IoT projects. [Details](https://openhardware.directory/devices/d1-mini-v3) | [Markdown](https://openhardware.directory/devices/d1-mini-v3/md) ## Blue Pill STM32F103C8T6 Popular low-cost development board based on the STM32F103C8T6 ARM Cortex-M3 microcontroller running at 72 MHz. Features 64 KB flash, 20 KB SRAM, and extensive peripheral support for embedded development. [Details](https://openhardware.directory/devices/blue-pill-stm32) | [Markdown](https://openhardware.directory/devices/blue-pill-stm32/md) ## Oui-Spy ESP32-S3 based multi-mode BLE detection and security research tool with integrated piezo buzzer, MMCX antenna connector, and seven swappable firmware modes for surveillance detection, drone tracking, and RF direction finding. [Details](https://openhardware.directory/devices/oui-spy) | [Markdown](https://openhardware.directory/devices/oui-spy/md) ## Grasshopper LoRaWAN Development Board Ultra-compact 18x45mm LoRaWAN development board from Tlera Corp featuring Murata's FCC-certified CMWX1ZZABZ-078 module with STM32L082 Cortex-M0+ MCU and SX1276 LoRa radio, drawing just 2 uA in stop mode. [Details](https://openhardware.directory/devices/grasshopper-lorawan-development-board) | [Markdown](https://openhardware.directory/devices/grasshopper-lorawan-development-board/md) ## TrackSenger Compact Meshtastic-compatible LoRa communicator with push-button keyboard, built around the Heltec Wireless Tracker with ESP32-S3, SX1262 LoRa, GPS, and a 0.96" TFT display for off-grid mesh messaging. [Details](https://openhardware.directory/devices/tracksenger) | [Markdown](https://openhardware.directory/devices/tracksenger/md) ## LuckFox Pico Ultra-compact Linux SBC (51x21mm) based on Rockchip RV1103 with ARM Cortex-A7 @ 1.2GHz, RISC-V MCU co-processor, 0.5 TOPS NPU, ISP 3.2, 64MB DDR2, MIPI CSI camera, and 24 GPIO pins in a Pico form factor. [Details](https://openhardware.directory/devices/luckfox-pico) | [Markdown](https://openhardware.directory/devices/luckfox-pico/md) ## Waveshare ESP32-P4-Pico Compact Pico-form-factor development board based on the ESP32-P4 RISC-V dual-core processor at 400MHz with 32MB PSRAM, 32MB flash, MIPI-DSI/CSI interfaces, onboard ES8311 audio codec with NS4150B amplifier, microSD slot, and USB 2.0 OTG HS. [Details](https://openhardware.directory/devices/waveshare-esp32-p4-pico) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-p4-pico/md) ## LuckFox Pico Mini Tiny Linux SBC (28x21mm) based on Rockchip RV1103 with ARM Cortex-A7 @ 1.2GHz, RISC-V MCU, 0.5 TOPS NPU, 64MB DDR2, MIPI CSI camera, 17 GPIO pins, and castellated-hole design for direct soldering. [Details](https://openhardware.directory/devices/luckfox-pico-mini) | [Markdown](https://openhardware.directory/devices/luckfox-pico-mini/md) ## LuckFox Pico Zero Feature-rich Linux SBC based on Rockchip RV1106G3 with ARM Cortex-A7, 1.0 TOPS NPU, 256MB DDR3L, 8GB eMMC, WiFi 6, Bluetooth 5.2, 40-pin RPi-compatible GPIO, MIPI CSI 4-lane camera, and onboard microphone/speaker. [Details](https://openhardware.directory/devices/luckfox-pico-zero) | [Markdown](https://openhardware.directory/devices/luckfox-pico-zero/md) ## Waveshare ESP32-P4-WIFI6 Pico-form-factor development board combining the ESP32-P4 RISC-V dual-core at 400MHz with an ESP32-C6 co-processor for WiFi 6 and Bluetooth 5 LE. Features 32MB PSRAM, 32MB flash, MIPI-DSI/CSI, onboard audio, microSD, and USB 2.0 OTG HS. [Details](https://openhardware.directory/devices/waveshare-esp32-p4-wifi6) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-p4-wifi6/md) ## LuckFox Pico Ultra Full-featured Linux SBC based on Rockchip RV1106G3 with 1.0 TOPS NPU, 256MB DDR3L, 8GB eMMC, 100M Ethernet (RJ45), optional WiFi 6/BT 5.2, MIPI CSI camera, RGB LCD display output, speaker, and PoE header. [Details](https://openhardware.directory/devices/luckfox-pico-ultra) | [Markdown](https://openhardware.directory/devices/luckfox-pico-ultra/md) ## LuckFox Pico Pro Linux SBC based on Rockchip RV1106G2 with ARM Cortex-A7 @ 1.2GHz, 0.5 TOPS NPU, 128MB DDR3L, 256MB SPI NAND Flash, 100M Ethernet (RJ45), MIPI CSI camera, 26 GPIO pins, and RTC battery header in Pico form factor. [Details](https://openhardware.directory/devices/luckfox-pico-pro) | [Markdown](https://openhardware.directory/devices/luckfox-pico-pro/md) ## Waveshare ESP32-P4-ETH Pico-form-factor development board with ESP32-P4 RISC-V dual-core at 400MHz, 100Mbps Ethernet via IP101 PHY, 32MB PSRAM, 32MB flash, MIPI-DSI/CSI interfaces, onboard ES8311 audio codec with amplifier, microSD, USB 2.0 OTG HS, and PoE module header. [Details](https://openhardware.directory/devices/waveshare-esp32-p4-eth) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-p4-eth/md) ## LuckFox Pico Plus Linux SBC based on Rockchip RV1103 with ARM Cortex-A7 @ 1.2GHz, RISC-V MCU, 0.5 TOPS NPU, 64MB DDR2, 128MB NAND Flash, 10/100M Ethernet (RJ45), MIPI CSI camera, and 25 GPIO pins in a Pico form factor. [Details](https://openhardware.directory/devices/luckfox-pico-plus) | [Markdown](https://openhardware.directory/devices/luckfox-pico-plus/md) ## Waveshare ESP32-P4-WIFI6-DEV-KIT Full-featured ESP32-P4 development board with WiFi 6 and Bluetooth 5 LE via ESP32-C6, 100Mbps Ethernet, PoE header, 3.5mm headphone jack, USB OTG HS switchable host/device, 16MB flash, 32MB PSRAM, MIPI-DSI/CSI, and 28 GPIOs. [Details](https://openhardware.directory/devices/waveshare-esp32-p4-wifi6-dev-kit) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-p4-wifi6-dev-kit/md) ## LuckFox Lyra Ultra Feature-rich Linux SBC based on Rockchip RK3506B with triple-core ARM Cortex-A7 @ 1.2GHz + Cortex-M0, 512MB DDR3L, 8GB eMMC, 100M Ethernet, optional WiFi 6/BT 5.2, MIPI DSI display, PoE header, and 33 GPIO pins. [Details](https://openhardware.directory/devices/luckfox-lyra-ultra) | [Markdown](https://openhardware.directory/devices/luckfox-lyra-ultra/md) ## LuckFox Lyra Zero W Compact Linux SBC based on Rockchip RK3506B with triple-core ARM Cortex-A7 @ 1.2GHz + Cortex-M0, 512MB DDR3L, 256MB NAND Flash, WiFi 6, Bluetooth 5.2, MIPI DSI display, 28 Matrix IO pins, and 40-pin RPi-compatible header. [Details](https://openhardware.directory/devices/luckfox-lyra-zero-w) | [Markdown](https://openhardware.directory/devices/luckfox-lyra-zero-w/md) ## Waveshare ESP32-P4-WIFI6-POE-ETH ESP32-P4 development board with WiFi 6 and Bluetooth 5 LE via ESP32-C6, 100Mbps PoE Ethernet via IP101GRI, IPEX external antenna, USB Type-A OTG HS, 32MB PSRAM, 16MB flash, MIPI-DSI/CSI, onboard audio, and 28 GPIOs. [Details](https://openhardware.directory/devices/waveshare-esp32-p4-wifi6-poe-eth) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-p4-wifi6-poe-eth/md) ## LuckFox Lyra Plus Compact Linux SBC based on Rockchip RK3506G2 with triple-core ARM Cortex-A7 @ 1.2GHz + Cortex-M0, 128MB DDR3L, 256MB NAND Flash, 100M Ethernet, MIPI DSI display output, 24 Rockchip Matrix IO pins, and built-in audio/video codec. [Details](https://openhardware.directory/devices/luckfox-lyra-plus) | [Markdown](https://openhardware.directory/devices/luckfox-lyra-plus/md) ## Adafruit PyGamer Handheld gaming console and dev board powered by ATSAMD51J19 (120MHz Cortex-M4F) with a 1.8" TFT display, 5 NeoPixels, accelerometer, and Feather-compatible headers. Runs MakeCode Arcade, CircuitPython, or Arduino. [Details](https://openhardware.directory/devices/adafruit-pygamer) | [Markdown](https://openhardware.directory/devices/adafruit-pygamer/md) ## Adafruit HalloWing M4 Express Skull-shaped ATSAMD51J19 dev board (120MHz Cortex-M4F) with a 1.54" 240×240 IPS TFT, 4 capacitive touch inputs, 4 NeoPixels, accelerometer, speaker driver, and LiPoly charging. Perfect for Halloween props and wearables. [Details](https://openhardware.directory/devices/adafruit-hallowing-m4-express) | [Markdown](https://openhardware.directory/devices/adafruit-hallowing-m4-express/md) ## Circuit Playground Bluefruit Round educational microcontroller with Nordic nRF52840 (64MHz Cortex-M4F + BLE), 10 NeoPixels, accelerometer, microphone, light sensor, speaker, 8 alligator-clip I/O pads, and USB. Runs CircuitPython, MakeCode, and Arduino. [Details](https://openhardware.directory/devices/circuit-playground-bluefruit) | [Markdown](https://openhardware.directory/devices/circuit-playground-bluefruit/md) ## Adafruit Feather STM32F405 Express High-speed Feather-form-factor dev board with STM32F405 ARM Cortex-M4F @ 168MHz, 1MB Flash, 192KB RAM, 2MB SPI Flash, USB-C, STEMMA QT, SD card socket, and LiPo charging. Adafruit's fastest CircuitPython board. [Details](https://openhardware.directory/devices/adafruit-feather-stm32f405-express) | [Markdown](https://openhardware.directory/devices/adafruit-feather-stm32f405-express/md) ## Adafruit ItsyBitsy nRF52840 Express Tiny breadboard-friendly Bluetooth LE board with Nordic nRF52840 Cortex-M4F @ 64MHz, 1MB Flash, 256KB RAM, 2MB QSPI Flash, 21 GPIO, and native USB — all in a 36×17.6mm footprint. Supports CircuitPython and Arduino. [Details](https://openhardware.directory/devices/adafruit-itsybitsy-nrf52840-express) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-nrf52840-express/md) ## Adafruit Feather nRF52840 Sense Sensor-rich BLE Feather with Nordic nRF52840 (64MHz Cortex-M4F), 6 onboard sensors (9-DoF IMU, magnetometer, proximity/light, PDM mic, humidity, barometric pressure), 21 GPIO, and FCC/IC/TELEC certified. [Details](https://openhardware.directory/devices/adafruit-feather-nrf52840-sense) | [Markdown](https://openhardware.directory/devices/adafruit-feather-nrf52840-sense/md) ## PJRC Teensy 4.1 High-performance microcontroller with NXP i.MX RT1062 ARM Cortex-M7 @ 600MHz, 1MB RAM, 2MB Flash, 100Mbps Ethernet PHY, SD card, 55 GPIO, dual 480Mbps USB, and 3 CAN Bus. Expanded Teensy 4.0 sibling. [Details](https://openhardware.directory/devices/pjrc-teensy-4-1) | [Markdown](https://openhardware.directory/devices/pjrc-teensy-4-1/md) ## ESP32-S2-WROVER Module Bare WiFi module with Espressif ESP32-S2 single-core Xtensa LX7 @ 240MHz, 4MB Flash, 2MB PSRAM, 802.11b/g/n, native USB 1.1 OTG, and SMD pads. Intended for integration onto custom PCBs, not a standalone dev board. [Details](https://openhardware.directory/devices/esp32-s2-wrover-module) | [Markdown](https://openhardware.directory/devices/esp32-s2-wrover-module/md) ## ESP32-S2-WROVER-I Module with uFL Bare WiFi module with ESP32-S2 Xtensa LX7 @ 240MHz, 4MB Flash, 2MB PSRAM, 802.11b/g/n, native USB OTG, and a uFL connector for an external antenna. Drop-in variant of the WROVER for improved RF range. [Details](https://openhardware.directory/devices/esp32-s2-wrover-i-module-with-ufl) | [Markdown](https://openhardware.directory/devices/esp32-s2-wrover-i-module-with-ufl/md) ## ESP32-S2 Saola 1R Dev Kit Espressif official ESP32-S2-WROVER development board with dual 20-pin headers (breadboard-friendly), 8MB Flash, 2MB PSRAM, WiFi, dual Micro-USB (native USB + UART bridge), NeoPixel RGB LED, and boot/reset buttons. [Details](https://openhardware.directory/devices/esp32-s2-saola-1r-dev-kit) | [Markdown](https://openhardware.directory/devices/esp32-s2-saola-1r-dev-kit/md) ## ESP32-S2 Kaluga Dev Kit Espressif's multimedia-focused ESP32-S2 evaluation platform bundling four extension boards: audio player, capacitive touch panel, 3.2" LCD display, and camera module. Designed to showcase ESP32-S2 human-computer interaction features. [Details](https://openhardware.directory/devices/esp32-s2-kaluga-dev-kit) | [Markdown](https://openhardware.directory/devices/esp32-s2-kaluga-dev-kit/md) ## Adafruit Feather M4 CAN Express CAN-bus-capable Feather with ATSAME51J19 ARM Cortex-M4F @ 120MHz, built-in CAN transceiver + 5V booster, USB-C, 21 GPIO, 2MB SPI Flash, dual DAC, and LiPo charging. Ideal for automotive and industrial CAN Bus projects. [Details](https://openhardware.directory/devices/adafruit-feather-m4-can-express) | [Markdown](https://openhardware.directory/devices/adafruit-feather-m4-can-express/md) ## FeatherS2 ESP32-S2 Full-featured ESP32-S2 Feather-compatible board by Unexpected Maker with 16MB Flash, 8MB QSPI PSRAM, WiFi, native USB-C, 21 GPIO, STEMMA QT, APA102 RGB LED, ambient light sensor, and dual 700mA LDOs. [Details](https://openhardware.directory/devices/feathers2-esp32-s2) | [Markdown](https://openhardware.directory/devices/feathers2-esp32-s2/md) ## Adafruit PyPortal The Adafruit PyPortal is an all-in-one CircuitPython WiFi IoT display board featuring an ATSAMD51J20 Cortex-M4F, ESP32 WiFi coprocessor, 3.2" 320×240 color touchscreen, built-in speaker, NeoPixel, microSD, and temperature sensor — ready for internet-connected dashboards out of the box. [Details](https://openhardware.directory/devices/adafruit-pyportal) | [Markdown](https://openhardware.directory/devices/adafruit-pyportal/md) ## Adafruit Metro ESP32-S2 Arduino Uno-compatible WiFi dev board with ESP32-S2 single-core @ 240MHz, 4MB Flash, 2MB PSRAM, native USB-C, STEMMA QT, LiPoly charging, MAX17048 fuel gauge, barrel jack, and UNO shield compatibility. [Details](https://openhardware.directory/devices/adafruit-metro-esp32-s2) | [Markdown](https://openhardware.directory/devices/adafruit-metro-esp32-s2/md) ## BBC micro:bit v2 Upgraded BBC micro:bit with Nordic nRF52833 Cortex-M4F, Bluetooth 5.1, 5×5 LED matrix, 2 buttons, capacitive touch logo, built-in speaker and MEMS microphone, edge connector, and low-power mode. Same form factor as v1. [Details](https://openhardware.directory/devices/bbc-micro-bit-v2) | [Markdown](https://openhardware.directory/devices/bbc-micro-bit-v2/md) ## Adafruit Monster M4SK The Adafruit Monster M4SK is a wearable dual-display Halloween mask board powered by ATSAMD51 Cortex-M4F at 120MHz with 8MB flash, two 240×240 IPS TFT eye displays, stereo audio, microphone, STEMMA connectors, and LiPo battery support for animated eye and mask projects. [Details](https://openhardware.directory/devices/adafruit-monster-m4sk) | [Markdown](https://openhardware.directory/devices/adafruit-monster-m4sk/md) ## Adafruit Matrix Portal M4 The Adafruit Matrix Portal M4 is a plug-in controller for HUB75 RGB LED matrix panels, featuring an ATSAMD51J19 Cortex-M4F at 120MHz, ESP32 WiFi coprocessor with TLS/SSL, LIS3DH accelerometer, USB-C power, and STEMMA QT — designed to drive 16×32 to 64×64 LED matrices directly. [Details](https://openhardware.directory/devices/adafruit-matrix-portal-m4) | [Markdown](https://openhardware.directory/devices/adafruit-matrix-portal-m4/md) ## Arduino MKR WiFi 1010 Compact IoT Arduino with SAMD21 Cortex-M0+ @ 48MHz, u-blox NINA-W102 WiFi + Bluetooth module, ATECC508 crypto chip, 256KB Flash, 32KB SRAM, USB full-speed, LiPo charging, and MKR shield compatibility. [Details](https://openhardware.directory/devices/arduino-mkr-wifi-1010) | [Markdown](https://openhardware.directory/devices/arduino-mkr-wifi-1010/md) ## ESP32-S2 WROOM Module The ESP32-S2 WROOM is an Espressif WiFi module with a single-core Xtensa LX7 at 240MHz, 4MB flash, 320KB SRAM, built-in PCB antenna, native USB OTG, and rich peripheral support — a cost-effective WiFi-only module (no Bluetooth) with USB capabilities for IoT and embedded designs. [Details](https://openhardware.directory/devices/esp32-s2-wroom-module) | [Markdown](https://openhardware.directory/devices/esp32-s2-wroom-module/md) ## Arduino Uno R3 The quintessential beginner microcontroller board with ATmega328P @ 16MHz, 32KB Flash, 2KB SRAM, 14 digital I/O, 6 analog inputs, USB-B for programming, DC barrel jack, and the R3 expanded shield header. Open-source hardware. [Details](https://openhardware.directory/devices/arduino-uno-r3) | [Markdown](https://openhardware.directory/devices/arduino-uno-r3/md) ## Adafruit Feather RP2040 Feather-form-factor board with Raspberry Pi RP2040 dual-core Cortex-M0+ @ 133MHz, 264KB SRAM, 8MB Flash, 21 GPIO, 4 ADC, 2 PIO peripherals, USB-C with UF2 bootloader, STEMMA QT, and LiPo charging. Runs CircuitPython and MicroPython. [Details](https://openhardware.directory/devices/adafruit-feather-rp2040) | [Markdown](https://openhardware.directory/devices/adafruit-feather-rp2040/md) ## DC Boarduino The DC Boarduino is a slim, breadboard-friendly Arduino-compatible development board based on the ATmega328 at 16MHz, with a 2.1mm DC barrel jack for 7–17V input, USB-TTL serial header, ICSP programming port, and a form factor optimized for direct breadboard insertion. [Details](https://openhardware.directory/devices/dc-boarduino) | [Markdown](https://openhardware.directory/devices/dc-boarduino/md) ## Adafruit ItsyBitsy RP2040 Tiny 36×18mm breadboard-friendly board with Raspberry Pi RP2040 dual-core Cortex-M0+ @ 133MHz, 264KB SRAM, 8MB Flash, 23 GPIO, 4 ADC, 2 PIO peripherals, and Micro-USB. Runs CircuitPython and MicroPython. [Details](https://openhardware.directory/devices/adafruit-itsybitsy-rp2040) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-rp2040/md) ## ESP32-C6 DevKitC-1-N8 Official Espressif development board featuring the ESP32-C6 — a RISC-V single-core MCU with WiFi 6, BLE 5.0, Zigbee 3.0, Thread 1.3, and native Matter support. 8MB flash, USB-C JTAG/serial. [Details](https://openhardware.directory/devices/esp32-c6-devkitc-1) | [Markdown](https://openhardware.directory/devices/esp32-c6-devkitc-1/md) ## Adafruit ItsyBitsy ESP32 Ultra-compact ESP32 development board in the ItsyBitsy form factor with WiFi, Bluetooth Classic + BLE, USB-C, and LiPo charging — perfect for space-constrained wireless projects. [Details](https://openhardware.directory/devices/adafruit-itsybitsy-esp32) | [Markdown](https://openhardware.directory/devices/adafruit-itsybitsy-esp32/md) ## Adafruit HUZZAH32 ESP32 Feather Board Adafruit's Feather-format ESP32 board with dual-core Xtensa LX6 @ 240MHz, WiFi b/g/n, Bluetooth Classic + BLE 4.2, built-in LiPo charger, and Feather-compatible pin layout. Great all-around wireless IoT platform. [Details](https://openhardware.directory/devices/adafruit-huzzah32-esp32-feather) | [Markdown](https://openhardware.directory/devices/adafruit-huzzah32-esp32-feather/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 Sufficient IoT Hub Linux-based IoT hub with Allwinner T113-S3 dual-core ARM Cortex-A7 SoC, LoRa (SX1262), WiFi, Ethernet, and optional LTE. Runs Debian 10 with a dedicated IoT OS, CLI, and web UI for no-code device management. [Details](https://openhardware.directory/devices/heltec-sufficient-iot-hub) | [Markdown](https://openhardware.directory/devices/heltec-sufficient-iot-hub/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) ## 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 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 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) ## 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 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 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 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) ## BeagleBone Black Low-cost, community-supported ARM Cortex-A8 development platform with 512MB DDR3L, 4GB eMMC, HDMI, USB, 10/100M Ethernet, 2x PRUs, and expandable via BeagleBone capes. Boots Linux in under 10 seconds. [Details](https://openhardware.directory/devices/beaglebone-black) | [Markdown](https://openhardware.directory/devices/beaglebone-black/md) ## BeagleBone Black Industrial Industrial-rated BeagleBone Black with extended temperature range (-40°C to +85°C), TI Sitara AM3358 ARM Cortex-A8 at 1 GHz, full cape and software compatibility, for harsh environment deployments. [Details](https://openhardware.directory/devices/beaglebone-black-industrial) | [Markdown](https://openhardware.directory/devices/beaglebone-black-industrial/md) ## BeagleV-Ahead Open-source RISC-V single board computer with Alibaba T-Head TH1520 quad-core Xuantie C910 at 2GHz, 4 TOPS NPU, 4GB LPDDR4, 16GB eMMC, WiFi/Bluetooth, Gigabit Ethernet, micro-HDMI, and BeagleBone cape headers. [Details](https://openhardware.directory/devices/beaglev-ahead) | [Markdown](https://openhardware.directory/devices/beaglev-ahead/md) ## BeagleV-Fire RISC-V + FPGA single board computer powered by Microchip PolarFire MPFS025T with 4x RV64GC U54 cores at 667MHz, 23K FPGA logic elements, 2GB LPDDR4, 16GB eMMC, Gigabit Ethernet, M.2 E-Key, and BeagleBone cape headers. [Details](https://openhardware.directory/devices/beaglev-fire) | [Markdown](https://openhardware.directory/devices/beaglev-fire/md)