# 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 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-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)

## LILYGO T5s 2.7 inch E-Paper

LILYGO T5s is an ESP32 development board with a 2.7-inch 264×176 e-paper display, onboard I2S audio (MAX98357A amplifier + ICS43434 MEMS mic), 500mA battery management, and TF card support.

[Details](https://openhardware.directory/devices/lilygo-t5s-2-7inch-e-paper) | [Markdown](https://openhardware.directory/devices/lilygo-t5s-2-7inch-e-paper/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)

## Evil Crow RF V2

Open-source RF security research tool with ESP32, dual CC1101 sub-GHz transceivers (300-928MHz), and NRF24L01 2.4GHz module for penetration testing, signal analysis, and replay attacks.

[Details](https://openhardware.directory/devices/evil-crow-rf-v2) | [Markdown](https://openhardware.directory/devices/evil-crow-rf-v2/md)

## Sonoff NSPanel

ESP32-based smart wall switch with 3.5-inch capacitive touchscreen, dual relay outputs, temperature sensor, and buzzer. Flashable with Tasmota for custom LVGL/Berry interfaces and Home Assistant integration.

[Details](https://openhardware.directory/devices/sonoff-nspanel) | [Markdown](https://openhardware.directory/devices/sonoff-nspanel/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-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)

## Heltec HT-M01S Indoor LoRa Gateway (Rev.2.0)

Compact 8-channel LoRaWAN gateway based on ESP32 and SX1303 + SX1250, with WiFi and Ethernet backhaul, 1.8-inch TFT display, and aluminum housing. Supports LoRaWAN Class A/C, TTN, and ChirpStack.

[Details](https://openhardware.directory/devices/heltec-ht-m01s-v2) | [Markdown](https://openhardware.directory/devices/heltec-ht-m01s-v2/md)