# 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. **23 device listed.** ## LILYGO T-Watch S3 Open-source ESP32-S3 smartwatch with LoRa, 1.3" 240×240 IPS touchscreen, haptic feedback, accelerometer, speaker, microphone, IR transmitter, and 1500mAh battery. Supports Meshtastic, ESPHome, Arduino, and MicroPython. [Details](https://openhardware.directory/devices/lilygo-t-watch-s3) | [Markdown](https://openhardware.directory/devices/lilygo-t-watch-s3/md) ## DFRobot Beetle CM-32U4 Ultra-compact Arduino Leonardo-compatible microcontroller board with ATmega32U4, integrated lithium battery charging, and native USB in a tiny 22x20.5mm form factor. [Details](https://openhardware.directory/devices/dfrobot-beetle-cm-32u4) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-cm-32u4/md) ## DFRobot Beetle ESP32-C3 Coin-sized ESP32-C3 RISC-V IoT development board with WiFi, BLE 5.0, integrated LiPo charging, 13 GPIO pins, and USB-C in a 25x20.5mm form factor. [Details](https://openhardware.directory/devices/dfrobot-beetle-esp32-c3) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-esp32-c3/md) ## DFRobot Beetle ESP32 Compact ESP32 dual-core development board with WiFi, Bluetooth 4.2, sewable I/O pads, and wearable-friendly 35x34mm form factor for IoT and e-textile projects. [Details](https://openhardware.directory/devices/dfrobot-beetle-esp32) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-esp32/md) ## DFRobot Beetle RP2040 Compact RP2040 dual-core ARM Cortex-M0+ development board with USB-C, 8 GPIO pins, and beginner-friendly immersion gold pads in a 27x20mm form factor. [Details](https://openhardware.directory/devices/dfrobot-beetle-rp2040) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-rp2040/md) ## DFRobot Beetle RP2350 Ultra-affordable RP2350 dual-architecture development board with switchable ARM Cortex-M33 / RISC-V cores, LiPo charging, 11 GPIO pins, and USB-C in a 25x20.5mm package. [Details](https://openhardware.directory/devices/dfrobot-beetle-rp2350) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-rp2350/md) ## D-Robotics RDK X3 AI-focused single board computer with 5 TOPS NPU, quad-core ARM Cortex-A53, 4GB LPDDR4, dual MIPI CSI cameras, and ROS2 support for robotics and edge AI. [Details](https://openhardware.directory/devices/d-robotics-rdk-x3) | [Markdown](https://openhardware.directory/devices/d-robotics-rdk-x3/md) ## D-Robotics RDK X5 High-performance AI SBC with 10 TOPS NPU, octa-core ARM Cortex-A55, 8GB LPDDR4, WiFi 6, 4x USB 3.0, dual MIPI CSI, CAN FD, and ROS2 support for advanced robotics. [Details](https://openhardware.directory/devices/d-robotics-rdk-x5) | [Markdown](https://openhardware.directory/devices/d-robotics-rdk-x5/md) ## DFRobot Beetle BLE Ultra-compact Arduino Uno-compatible board with BLE 4.0 (CC2540), ATmega328P, sewable gold-plated I/O pads, and wireless programming in a 28.8x33.1mm wearable form factor. [Details](https://openhardware.directory/devices/dfrobot-beetle-ble) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-ble/md) ## DFRobot Beetle Board The original coin-sized Arduino Leonardo-compatible board with ATmega32U4, native USB, 10 digital and 5 analog pins, and sewable gold-plated pads in a 20x22mm form factor. [Details](https://openhardware.directory/devices/dfrobot-beetle-board) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-board/md) ## DFRobot ESP32-S3 AI Camera ESP32-S3 AI camera module with 2MP wide-angle night vision sensor, I2S speaker and microphone, ambient light sensor, WiFi/BLE 5.0, and edge AI inference support in a 42x42mm package. [Details](https://openhardware.directory/devices/dfrobot-esp32-s3-ai-camera) | [Markdown](https://openhardware.directory/devices/dfrobot-esp32-s3-ai-camera/md) ## Pine64 / LTS Affordable 64-bit Linux SBC by Pine64, powered by the Allwinner A64 SoC with up to 2GB LPDDR3, Gigabit Ethernet, 2× USB 2.0, and microSD — available in standard and Long-Term Support variants. [Details](https://openhardware.directory/devices/pine64) | [Markdown](https://openhardware.directory/devices/pine64/md) ## Clearfog PRO Industrial-grade network computing SBC by SolidRun, powered by the Marvell Armada 388 SoC, 1GB DDR3, 4GB eMMC, dual Gigabit Ethernet + SFP, mPCIe, SATA, and 12V DC power for router and NAS applications. [Details](https://openhardware.directory/devices/clearfog-pro) | [Markdown](https://openhardware.directory/devices/clearfog-pro/md) ## JetHub D1 / D1+ DIN-rail mountable Linux IoT hub by JetHome, powered by the Amlogic S905W2 SoC with up to 4GB DDR4, 16GB eMMC, WiFi 5, Bluetooth 5.0, Gigabit Ethernet, and 12V DC — designed for home automation and industrial IoT. [Details](https://openhardware.directory/devices/jethub-d1) | [Markdown](https://openhardware.directory/devices/jethub-d1/md) ## JetHub H1 DIN-rail mountable Linux IoT hub by JetHome, powered by the Amlogic S905W SoC with 2GB DDR4, 8GB eMMC, WiFi 802.11n, Bluetooth 4.0, Gigabit Ethernet, and 12V DC — compact smart home controller for panel installation. [Details](https://openhardware.directory/devices/jethub-h1) | [Markdown](https://openhardware.directory/devices/jethub-h1/md) ## Netduino Plus The Netduino Plus is an open-source .NET Micro Framework microcontroller board with built-in Ethernet, Arduino-compatible pinout, and microSD slot — enabling C# development for connected embedded projects. [Details](https://openhardware.directory/devices/netduino-plus) | [Markdown](https://openhardware.directory/devices/netduino-plus/md) ## Netduino Plus 2 The Netduino Plus 2 is an Arduino R3-compatible .NET Micro Framework development board with a 168MHz ARM Cortex-M4 processor, built-in Ethernet, microSD slot, and 12-bit ADC — offering C# programming for connected embedded applications. [Details](https://openhardware.directory/devices/netduino-plus-2) | [Markdown](https://openhardware.directory/devices/netduino-plus-2/md) ## Netduino 3 WiFi The Netduino 3 WiFi is a .NET Micro Framework development board with an STM32F427 ARM Cortex-M4 at 168MHz, integrated WiFi with WPA2/SSL support, Arduino shield compatibility, and 3 GOBUS expansion ports for rapid IoT prototyping in C#. [Details](https://openhardware.directory/devices/netduino-3-wifi) | [Markdown](https://openhardware.directory/devices/netduino-3-wifi/md) ## Netduino 3 The Netduino 3 is an open-source .NET Micro Framework development board powered by the STM32F427VG ARM Cortex-M4 at 168MHz, featuring Arduino shield compatibility, 3 GOBUS ports, and 6 analog input channels for C# embedded development. [Details](https://openhardware.directory/devices/netduino-3) | [Markdown](https://openhardware.directory/devices/netduino-3/md) ## Netduino 3 Ethernet The Netduino 3 Ethernet is a .NET Micro Framework board with an STM32F427VI ARM Cortex-M4 at 168MHz, wired Ethernet with full TCP/IP stack, microSD storage, Arduino shield compatibility, and 3 GOBUS ports for C# network-connected embedded projects. [Details](https://openhardware.directory/devices/netduino-3-ethernet) | [Markdown](https://openhardware.directory/devices/netduino-3-ethernet/md) ## Raspberry Pi 1 Model B The Raspberry Pi 1 Model B is the original production Raspberry Pi single-board computer, featuring a Broadcom BCM2835 ARM1176JZF-S at 700MHz, 512MB RAM, 100Mbps Ethernet, 2 USB 2.0 ports, HDMI, 26-pin GPIO header, and an SD card slot — the board that launched the modern SBC revolution. [Details](https://openhardware.directory/devices/raspberry-pi-1-model-b) | [Markdown](https://openhardware.directory/devices/raspberry-pi-1-model-b/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-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)