# 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.

**4 device listed.**

## DFRobot FireBeetle 328P BLE 4.1

Low-power Arduino-compatible board with ATmega328P and Dialog BLE 4.1 chip, featuring 14 digital I/O, 6 analog inputs, wireless OTA programming, 25uA deep sleep, onboard LiPo charging, and dual interrupt wakeup in a compact 58x29mm form factor.

[Details](https://openhardware.directory/devices/dfrobot-firebeetle-328p-ble) | [Markdown](https://openhardware.directory/devices/dfrobot-firebeetle-328p-ble/md)

## DFRobot FireBeetle ESP32

Compact ESP32 IoT microcontroller with dual-core Xtensa LX6 at 240MHz, WiFi 802.11 b/g/n, Bluetooth 4.2, 16MB flash, 520KB SRAM, 10 digital I/O, 5 analog inputs, onboard LiPo charging, 10uA deep sleep, and 250+ tutorials.

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

## DFRobot FireBeetle ESP8266

Compact ESP8266 WiFi IoT microcontroller with Tensilica L106 at 80/160MHz, 16MB flash, 50KB SRAM, 10 digital I/O, onboard LiPo charging, 46uA low-power mode, OTA updates, and Arduino/MicroPython support at just $7.50.

[Details](https://openhardware.directory/devices/dfrobot-firebeetle-esp8266) | [Markdown](https://openhardware.directory/devices/dfrobot-firebeetle-esp8266/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)