# 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. **13 device listed.** ## M5Stack FIRE V2.7 Feature-rich ESP32 IoT dev kit with 2.0" IPS display, 8MB PSRAM, 16MB flash, MPU6886 IMU, BMM150 magnetometer, 10x SK6812 RGB LEDs, microphone, speaker, microSD, 500mAh battery, and M5GO charging base. [Details](https://openhardware.directory/devices/m5stack-fire-v2-7) | [Markdown](https://openhardware.directory/devices/m5stack-fire-v2-7/md) ## M5Stack Basic Core V2.7 Compact ESP32 IoT dev kit with 2.0" IPS LCD (320x240), 16MB flash, microSD, speaker, 110mAh battery, and three Grove ports in a stackable 54mm square enclosure. [Details](https://openhardware.directory/devices/m5stack-basic-core-v2-7) | [Markdown](https://openhardware.directory/devices/m5stack-basic-core-v2-7/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 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 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 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 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 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 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) ## 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 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 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 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)