# 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.

**9 device listed.**

## 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-Echo

nRF52840 + SX1262 LoRa + L76K GPS all-in-one board with 1.54-inch e-paper display, 850mAh battery, Thread, Zigbee, and BLE 5.0 — runs Meshtastic, SoftRF, and custom NRF firmware out of the box.

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

## LILYGO T-Echo Plus

Enhanced T-Echo with nRF52840, SX1262 LoRa, L76K GPS, BHI260AP IMU, 2400mAh battery, 1.54-inch e-paper display, vibration motor, buzzer, and 1/4-inch mount — Meshtastic-ready with extended runtime.

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

## LILYGO T-Wrist E-Paper

LILYGO T-Wrist E-Paper is an ESP32-based wearable development board with a 1.54-inch 200×200 e-paper display, vibration motor, optional GPS (LG77 GNSS), WiFi, Bluetooth 4.2, and 3D-printable watch shell.

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

## LILYGO T-Bao

Dual-MCU development board combining ESP32 and KENDRYTE K210 RISC-V AI processor with OV2640 camera, 1.54" IPS touchscreen, I2S audio amplifier, motor driver, 6-axis IMU, and Wi-Fi for edge AI and robotics prototyping.

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

## LILYGO T-TV

ESP32 desktop gadget with a 1.54-inch transparent blue OLED display, IR receiver, touch control, Wi-Fi, and Bluetooth. Ships with factory firmware featuring a clock, games, and animations.

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

## M5Stack Air Quality Kit v1.1

ESP32-S3 based air quality monitor with SEN55 particulate/VOC sensor, SCD40 CO2 sensor, 1.54" e-ink display, 600mAh battery, and Grove connector.

[Details](https://openhardware.directory/devices/m5stack-air-quality-kit) | [Markdown](https://openhardware.directory/devices/m5stack-air-quality-kit/md)

## Elecrow ThinkNode M1

Compact Meshtastic LoRa transceiver with nRF52840, SX1262, 1.54\" e-paper display, GPS, and 1200mAh battery for off-grid mesh communication.

[Details](https://openhardware.directory/devices/elecrow-thinknode-m1) | [Markdown](https://openhardware.directory/devices/elecrow-thinknode-m1/md)

## LuckFox PicoKVM

Compact IP-KVM remote management tool based on RV1106G3, capturing 1080p@60fps HDMI with H.264 encoding at 80-200ms latency. Features 100M Ethernet, USB HID/UMS emulation, Wake-on-LAN, web terminal, and optional 1.54-inch touch display.

[Details](https://openhardware.directory/devices/waveshare-luckfox-picokvm) | [Markdown](https://openhardware.directory/devices/waveshare-luckfox-picokvm/md)