# 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. **29 device listed.** ## LILYGO T-SIM7070G ESP32-WROVER-E development board with SIM7070G NB-IoT/LTE-M/GPRS modem, GPS, Wi-Fi, Bluetooth 4.2, MicroSD, and solar charging input for ultra-low-power IoT applications. [Details](https://openhardware.directory/devices/lilygo-t-sim7070g) | [Markdown](https://openhardware.directory/devices/lilygo-t-sim7070g/md) ## LILYGO T-Display Keyboard Compact ESP32 development board combining a physical keyboard with a 1.14" IPS display, USB-C charging, multiple interfaces, and optional 2800mAh battery in shell configuration. [Details](https://openhardware.directory/devices/lilygo-t-display-keyboard) | [Markdown](https://openhardware.directory/devices/lilygo-t-display-keyboard/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) ## LILYGO T5 2.13inch E-Paper LILYGO T5 2.13inch E-Paper is an ESP32-D0WDQ6 V3 development board with a 2.13-inch 212×104 e-ink display supporting 4-level grayscale, 4MB flash, TF card slot, and battery management with 4 user buttons. [Details](https://openhardware.directory/devices/lilygo-t5-2-13inch-e-paper) | [Markdown](https://openhardware.directory/devices/lilygo-t5-2-13inch-e-paper/md) ## LILYGO T-SIM7600E ESP32-based development board with SIM7600E-H 4G LTE Cat-4 modem, GPS, Wi-Fi, Bluetooth, 18650 battery holder with solar charging, and dual USB-C ports for high-speed IoT connectivity. [Details](https://openhardware.directory/devices/lilygo-t-sim7600e) | [Markdown](https://openhardware.directory/devices/lilygo-t-sim7600e/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-SIM A7670E ESP32-WROVER-E development board with A7670E LTE Cat-1 modem supporting voice calls, SMS, and GPS positioning. Available with multiple regional frequency variants for global 4G deployments. [Details](https://openhardware.directory/devices/lilygo-t-sim-a7670e) | [Markdown](https://openhardware.directory/devices/lilygo-t-sim-a7670e/md) ## LILYGO T-A7608E-H ESP32-WROVER-E development board with A7608E-H LTE Cat-1 modem supporting voice, SMS, GPS, and multi-band LTE-FDD/TDD connectivity for Europe with 18650 battery support. [Details](https://openhardware.directory/devices/lilygo-t-a7608e-h) | [Markdown](https://openhardware.directory/devices/lilygo-t-a7608e-h/md) ## LILYGO T-Watch 2021 Programmable ESP32 smartwatch with 1.3-inch round GC9A01 IPS touchscreen (240×240), BMA423 accelerometer, vibration motor, RTC, WiFi, and BLE 4.2 — open-source and fully programmable with Arduino or MicroPython. [Details](https://openhardware.directory/devices/lilygo-t-watch-2021) | [Markdown](https://openhardware.directory/devices/lilygo-t-watch-2021/md) ## LILYGO T7 V1.3 Mini32 ESP32 Compact ESP32 development board (Mini32 form factor) with 4MB Flash, WiFi 802.11 b/g/n, Bluetooth 4.2, CH340C USB-to-serial, TP4054 LiPo charger, and 1.25mm JST battery connector — a classic breadboard-compatible IoT dev board. [Details](https://openhardware.directory/devices/lilygo-t7-v1-3-mini-32-esp32) | [Markdown](https://openhardware.directory/devices/lilygo-t7-v1-3-mini-32-esp32/md) ## LILYGO T7 Mini32 V1.5 Updated ESP32 Mini32 development board with 8MB PSRAM, 4/16MB Flash options, dual-core 240MHz, CH9102 USB-serial, WiFi, BLE 4.2, and 1.25mm JST LiPo connector in a 40×31mm breadboard-friendly footprint. [Details](https://openhardware.directory/devices/lilygo-t7-mini32-v1-5) | [Markdown](https://openhardware.directory/devices/lilygo-t7-mini32-v1-5/md) ## LILYGO ESP32 OLED V3.0 ESP32 development board with integrated 0.96-inch SSD1306 OLED display, 4MB Flash, 520KB SRAM, WiFi, Bluetooth dual-mode, USB-C, and onboard LiPo battery charging for compact IoT display projects. [Details](https://openhardware.directory/devices/lilygo-esp32-oled-v3-0) | [Markdown](https://openhardware.directory/devices/lilygo-esp32-oled-v3-0/md) ## LILYGO T3 TCXO ESP32 LoRa development board with a Temperature Compensated Crystal Oscillator (TCXO) for enhanced LoRa frequency stability, 0.96-inch SSD1306 OLED display, 4MB Flash, WiFi, BLE 4.2, TF card slot, and LiPo battery support at 868/915MHz. [Details](https://openhardware.directory/devices/lilygo-t3-tcxo) | [Markdown](https://openhardware.directory/devices/lilygo-t3-tcxo/md) ## LILYGO T-Relay 5V 8-Channel ESP32-WROVER-E development board with 8 optocoupler-isolated 5V relay channels (HRS4H-S-DC5V), Wi-Fi, BLE 4.2, 8MB PSRAM, and support for DC 12–24V power input for industrial automation. [Details](https://openhardware.directory/devices/lilygo-t-relay-5v-8-channel) | [Markdown](https://openhardware.directory/devices/lilygo-t-relay-5v-8-channel/md) ## LILYGO T-Lite W5500 Ultra-compact ESP32 development board with W5500 SPI Ethernet, 0.96" OLED display, Wi-Fi, Bluetooth 4.2, and USB-C. Only 29.5×23mm for embedded IoT gateway projects. [Details](https://openhardware.directory/devices/lilygo-t-lite-w5500) | [Markdown](https://openhardware.directory/devices/lilygo-t-lite-w5500/md) ## LILYGO T-SIM7600 ESP32 development board with SIM7600 LTE Cat-4 modem (150Mbps DL), GPS, 18650 battery holder with solar charging interface, and dual USB-C ports for high-speed cellular IoT applications. [Details](https://openhardware.directory/devices/lilygo-t-sim7600) | [Markdown](https://openhardware.directory/devices/lilygo-t-sim7600/md) ## LILYGO T-Call V1.4 ESP32 development board with SIM800L 2G GSM/GPRS cellular modem, Wi-Fi, Bluetooth 4.2, USB-C charging, and Li-Po battery connector for IoT devices requiring SMS and GPRS data connectivity. [Details](https://openhardware.directory/devices/lilygo-t-call-v1-4) | [Markdown](https://openhardware.directory/devices/lilygo-t-call-v1-4/md) ## LILYGO T-Encoder ESP32 Compact ESP32-PICO-V3-02 board with rotary encoder, WS2812 RGB LED ring, Wi-Fi, BLE 4.2, 8MB flash, and 2MB PSRAM. Ideal for knob-based UI controllers and volume/parameter controls. [Details](https://openhardware.directory/devices/lilygo-t-encoder-esp32) | [Markdown](https://openhardware.directory/devices/lilygo-t-encoder-esp32/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 Atom Lite Ultra-compact ESP32-PICO-D4 development board (24x24mm) with RGB LED, programmable button, IR transmitter, Grove port, and 6 GPIO pins. Supports Arduino, ESP-IDF, UIFlow, and MicroPython. [Details](https://openhardware.directory/devices/m5stack-atom-lite) | [Markdown](https://openhardware.directory/devices/m5stack-atom-lite/md) ## Denky D4 Open-source ESP32 Teleinfo reader board for French Linky energy meters. Pre-flashed with Tasmota, features USB-C, WiFi, QWIIC I2C port, and RGB LED. Reads both Standard and Historique TIC formats. [Details](https://openhardware.directory/devices/denky-d4) | [Markdown](https://openhardware.directory/devices/denky-d4/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) ## Waveshare UGV Rover Open-source 6-wheel 4WD AI robot platform with dual-controller architecture (ESP32 + Raspberry Pi), computer vision, pan-tilt camera, ESP-NOW communication, and ROS2 support for robotics education and autonomous navigation. [Details](https://openhardware.directory/devices/waveshare-ugv-rover) | [Markdown](https://openhardware.directory/devices/waveshare-ugv-rover/md) ## Waveshare WAVE ROVER Flexible 4WD mobile robot chassis with all-metal body, ESP32 controller, 0.91\" OLED, 9-axis IMU, 3S UPS power system, and open-source firmware. Supports Raspberry Pi and Jetson Nano as host computers. [Details](https://openhardware.directory/devices/waveshare-wave-rover) | [Markdown](https://openhardware.directory/devices/waveshare-wave-rover/md) ## Waveshare RaspRover Open-source 4WD AI robot with dual-controller architecture (ESP32 + Raspberry Pi), 5MP 160-degree camera, pan-tilt module, audio system, computer vision via OpenCV/MediaPipe, and ROS2 support for AI robotics education. [Details](https://openhardware.directory/devices/waveshare-rasprover) | [Markdown](https://openhardware.directory/devices/waveshare-rasprover/md) ## Pycom WiPy 3.0 ESP32-based MicroPython IoT module with 802.11b/g/n WiFi, Bluetooth LE and Classic, 8MB flash, 4MB RAM, and ultra-low power ULP co-processor for deep-sleep GPIO monitoring at 25 µA. [Details](https://openhardware.directory/devices/pycom-wipy-30) | [Markdown](https://openhardware.directory/devices/pycom-wipy-30/md) ## Pycom LoPy 1.0 ESP32-based MicroPython module combining 802.11b/g/n WiFi, Bluetooth, and LoRa/LoRaWAN (868/915 MHz) in one board. Can act as a nano LoRa gateway and is 100% Python programmable for multi-protocol IoT deployments. [Details](https://openhardware.directory/devices/pycom-lopy-10) | [Markdown](https://openhardware.directory/devices/pycom-lopy-10/md) ## Adafruit HUZZAH32 – ESP32 Feather ESP32 dual-core 240 MHz Feather board with 802.11b/g/n WiFi, Bluetooth 4.2 Classic and BLE, 4MB flash, 520KB SRAM, 12 ADC channels, 2 DACs, capacitive touch, and built-in LiPo charger. [Details](https://openhardware.directory/devices/adafruit-huzzah32-esp32) | [Markdown](https://openhardware.directory/devices/adafruit-huzzah32-esp32/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)