# 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.

**14 device listed.**

## LILYGO T3 LoRa32 V1.6.1

ESP32-PICO-D4 development board with LoRa SX1276/SX1278 radio, 0.96\" SSD1306 OLED, microSD slot, WiFi, Bluetooth 4.2, and LiPo battery support in a compact 66×36mm form factor.

[Details](https://openhardware.directory/devices/lilygo-t3-lora32-v1-6-1) | [Markdown](https://openhardware.directory/devices/lilygo-t3-lora32-v1-6-1/md)

## LILYGO T-Display

Compact ESP32-PICO-D4 development board with integrated 1.14-inch ST7789V IPS LCD (135×240, 260 PPI), WiFi, Bluetooth 4.2/BLE, and Arduino/MicroPython support.

[Details](https://openhardware.directory/devices/lilygo-t-display) | [Markdown](https://openhardware.directory/devices/lilygo-t-display/md)

## LILYGO T-Beam

ESP32 development board combining LoRa radio (SX1276/SX1278), u-blox NEO-6M GPS, 0.96" OLED display, and 18650 battery support — the go-to board for Meshtastic and LoRa tracking projects.

[Details](https://openhardware.directory/devices/lilygo-t-beam) | [Markdown](https://openhardware.directory/devices/lilygo-t-beam/md)

## LILYGO T-SIM7000G

ESP32 board with SIMCom SIM7000G multi-band LTE-M/NB-IoT modem, GPS, 8MB PSRAM, USB-C, and 18650 battery support — designed for global cellular IoT deployments.

[Details](https://openhardware.directory/devices/lilygo-t-sim7000g) | [Markdown](https://openhardware.directory/devices/lilygo-t-sim7000g/md)

## LILYGO T-Watch 2020 V3

Programmable ESP32 smartwatch with 1.54-inch touch IPS display, BMA423 accelerometer, PCF8563 RTC, PDM microphone, speaker, IR transmitter, and vibration motor — fully open-source and Arduino/MicroPython programmable.

[Details](https://openhardware.directory/devices/lilygo-t-watch-2020-v3) | [Markdown](https://openhardware.directory/devices/lilygo-t-watch-2020-v3/md)

## LILYGO T-Higrow

ESP32 plant sensor board with capacitive soil moisture, soil fertility, BH1750 light sensor, and DHT11/BME280 temperature/humidity — WiFi-connected smart plant care for gardens and greenhouses.

[Details](https://openhardware.directory/devices/lilygo-t-higrow) | [Markdown](https://openhardware.directory/devices/lilygo-t-higrow/md)

## LILYGO T-Call SIM800

ESP32 board with SIM800L 2G GSM/GPRS modem for SMS alerts, voice calls, and cellular data — ideal for remote monitoring and IoT projects needing cellular fallback on a budget.

[Details](https://openhardware.directory/devices/lilygo-t-call-sim800) | [Markdown](https://openhardware.directory/devices/lilygo-t-call-sim800/md)

## LILYGO T-Internet-POE

ESP32 board with LAN8720 10/100 Mbps Ethernet, Power-over-Ethernet (PoE 36–57V), WiFi, and BLE 4.2 — ideal for wired IoT gateways, industrial automation, and network-connected data loggers.

[Details](https://openhardware.directory/devices/lilygo-t-internet-poe) | [Markdown](https://openhardware.directory/devices/lilygo-t-internet-poe/md)

## ESP32-DIV V2.0

Open-source multi-band wireless development toolkit with ESP32-U, 2.8" ILI9341 TFT display, 5 antennas, and SD card slot covering WiFi, BLE, 2.4GHz, and Sub-GHz frequency bands for security research and spectrum analysis.

[Details](https://openhardware.directory/devices/esp32-div-v2) | [Markdown](https://openhardware.directory/devices/esp32-div-v2/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 FireBeetle 2 ESP32-E

Compact ESP32-E IoT microcontroller with WiFi 802.11 b/g/n, Bluetooth 4.2, 18 digital I/O, 11 analog inputs, 7 touch pins, 2 DACs, onboard WS2812 RGB LED, GDI display interface, and lithium battery charging in a tiny 25.4x60mm form factor.

[Details](https://openhardware.directory/devices/dfrobot-firebeetle-2-esp32-e) | [Markdown](https://openhardware.directory/devices/dfrobot-firebeetle-2-esp32-e/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)

## 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)