# 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-Display AMOLED Lite

Compact ESP32-S3 development board featuring a 1.47" RM67162 AMOLED display with QSPI interface, 16MB Flash, 8MB PSRAM, Wi-Fi, Bluetooth 5, and battery charging support.

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

## LILYGO T-Display S3 AMOLED 1.64

ESP32-S3 development board with a 1.64" ICNA3311 AMOLED display at 280×456 resolution, 16MB Flash, 8MB PSRAM, Wi-Fi and Bluetooth 5 LE connectivity.

[Details](https://openhardware.directory/devices/lilygo-t-display-s3-amoled-1-64) | [Markdown](https://openhardware.directory/devices/lilygo-t-display-s3-amoled-1-64/md)

## LILYGO T-Display S3 Long

ESP32-S3 development board with an elongated 3.4" capacitive touch TFT LCD (180×640 resolution), 16MB Flash, 8MB PSRAM, Wi-Fi, Bluetooth 5, and optional enclosure variant.

[Details](https://openhardware.directory/devices/lilygo-t-display-s3-long) | [Markdown](https://openhardware.directory/devices/lilygo-t-display-s3-long/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-Encoder Pro

ESP32-S3 smart rotary encoder knob with 1.2-inch round AMOLED display, capacitive touch, buzzer, vibration motor, and dual Qwiic connectors — ideal for smart home control and media interfaces.

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

## LILYGO T4 S3

LILYGO T4 S3 is an ESP32-S3 development board with a 2.41-inch AMOLED touchscreen (450x600), 16MB flash, 8MB PSRAM, microSD slot, Wi-Fi, and Bluetooth 5 LE.

[Details](https://openhardware.directory/devices/lilygo-t4-s3) | [Markdown](https://openhardware.directory/devices/lilygo-t4-s3/md)

## Waveshare ESP32-S3 Touch LCD 3.49

ESP32-S3 dev board with 3.49" capacitive touch IPS display, dual microphone array, 6-axis IMU, RTC, and battery support. Ideal for wearable UIs and compact IoT dashboards.

[Details](https://openhardware.directory/devices/waveshare-esp32-s3-touch-lcd-3-49) | [Markdown](https://openhardware.directory/devices/waveshare-esp32-s3-touch-lcd-3-49/md)

## UPduino v3.1

A low-cost, fully open source FPGA development board built on the Lattice ICE40UP5K with 5.3K LUTs, on-board FTDI FT232H USB programmer, 4MB qSPI flash, and 39 GPIO pins on PMOD-compatible headers.

[Details](https://openhardware.directory/devices/upduino-v3-1) | [Markdown](https://openhardware.directory/devices/upduino-v3-1/md)

## Heltec Mesh Node T114

Compact nRF52840 + SX1262 LoRa development board with BLE 5.0, optional 1.14" TFT display and L76K GPS module. Designed for Meshtastic mesh networking, LoRaWAN, and battery-powered IoT deployments with ultra-low 11uA deep sleep current and solar panel support.

[Details](https://openhardware.directory/devices/heltec-mesh-node-t114) | [Markdown](https://openhardware.directory/devices/heltec-mesh-node-t114/md)