# 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. **41 device listed.** ## 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 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-Relay ESP32 development board with 4 onboard HRS4H-S-DC5V relays, 4MB flash, 8MB PSRAM, WiFi, BLE 4.2, and optocoupler-isolated GPIO expansion — designed for wireless remote switch control of AC/DC loads. [Details](https://openhardware.directory/devices/lilygo-t-relay) | [Markdown](https://openhardware.directory/devices/lilygo-t-relay/md) ## LILYGO FabGL VGA32 ESP32 development board with VGA video output, dual PS/2 ports for keyboard and mouse, 4MB flash, and the FabGL graphics library — a retro computing platform for VGA terminal emulators and classic games. [Details](https://openhardware.directory/devices/lilygo-fabgl-vga32) | [Markdown](https://openhardware.directory/devices/lilygo-fabgl-vga32/md) ## LILYGO T-Micro32 Plus LILYGO T-Micro32 Plus is an upgraded compact ESP32 module with 8MB flash, 2MB PSRAM, expanded GPIO, and an improved RED C3 ceramic antenna for stronger wireless performance. [Details](https://openhardware.directory/devices/lilygo-t-micro32-plus) | [Markdown](https://openhardware.directory/devices/lilygo-t-micro32-plus/md) ## LILYGO T-Weigh ESP32 development board combining 4-channel HX711 load cell amplifiers with LoRa SX1262 radio (868/915 MHz) for wireless weight measurement and IoT scale applications over long-range LoRa networks. [Details](https://openhardware.directory/devices/lilygo-t-weigh) | [Markdown](https://openhardware.directory/devices/lilygo-t-weigh/md) ## LILYGO T-Internet-COM ESP32 development board with LAN8720 Ethernet, 16MB flash, 8MB PSRAM, WS2812 RGB LED, SIM/TF card slots, and T-PCIE expansion support for industrial IoT, wired networking, and CAN bus applications. [Details](https://openhardware.directory/devices/lilygo-t-internet-com) | [Markdown](https://openhardware.directory/devices/lilygo-t-internet-com/md) ## LILYGO LoRa3 (T3 LoRa32 V1.6.1) LILYGO LoRa3 (T3 LoRa32 V1.6.1) is an ESP32 development board combining Wi-Fi, BLE, and LoRa radio (SX1276/SX1278) with OLED display and TF card slot for IoT and mesh networking. [Details](https://openhardware.directory/devices/lilygo-lora3) | [Markdown](https://openhardware.directory/devices/lilygo-lora3/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 LoRa V1.3 LILYGO LoRa V1.3 is an ESP32 development board with SX1276 LoRa radio at 868/915 MHz, optional 0.96-inch OLED display, Wi-Fi, BLE, and 4MB flash for IoT and LoRa applications. [Details](https://openhardware.directory/devices/lilygo-lora-v1-3) | [Markdown](https://openhardware.directory/devices/lilygo-lora-v1-3/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 T4 LILYGO T4 is an ESP32 development board with 8MB PSRAM, optional 2.2 or 2.4-inch ILI9341 TFT LCD display, Wi-Fi, Bluetooth 4.2 BLE, and Li-Po battery support. [Details](https://openhardware.directory/devices/lilygo-t4) | [Markdown](https://openhardware.directory/devices/lilygo-t4/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 Helium T-Beam ESP32 + SX1276 LoRa T-Beam variant optimized for the Helium IoT network — with NEO-6M GPS, AXP2101 PMU, and 18650 battery support for portable LoRaWAN network mapping and sensor nodes. [Details](https://openhardware.directory/devices/lilygo-helium-t-beam) | [Markdown](https://openhardware.directory/devices/lilygo-helium-t-beam/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-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-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) ## WT32-ETH01 ESP32 module with built-in Ethernet (LAN8720A PHY), WiFi, and Bluetooth. Designed for wired IoT applications, gateways, and industrial automation where reliable network connectivity is essential. [Details](https://openhardware.directory/devices/wt32-eth01) | [Markdown](https://openhardware.directory/devices/wt32-eth01/md) ## Waveshare UGV Beast Open-source ROS2 AI robot with tracked chassis, Raspberry Pi 4B/5, ESP32 sub-controller, 5MP camera with pan-tilt, IMU, and support for LiDAR expansion. Programmable via Python, OpenCV, and ROS2. [Details](https://openhardware.directory/devices/waveshare-ugv-beast) | [Markdown](https://openhardware.directory/devices/waveshare-ugv-beast/md) ## DFRobot Maixduino AI Development Kit RISC-V AI development board combining the Kendryte K210 AI processor with ESP32 for WiFi/BT connectivity. Includes camera and microphone for computer vision and voice recognition applications. [Details](https://openhardware.directory/devices/dfrobot-maixduino) | [Markdown](https://openhardware.directory/devices/dfrobot-maixduino/md) ## UkieLab WiFi Weather Station 7.5" A smart WiFi-enabled weather station with a 7.5\" e-ink display showing current conditions, humidity, pressure, and 4-day forecasts via Apple Weather. Available in USB-powered or battery-powered versions with optional CO2 sensor. [Details](https://openhardware.directory/devices/ukielab-wifi-weather-station-75) | [Markdown](https://openhardware.directory/devices/ukielab-wifi-weather-station-75/md) ## Airlytix ES1 ESPHome-native indoor air quality sensor with PM1.0/PM2.5/PM4/PM10, CO2, VOC, NOx, temperature, humidity, pressure, light, and sound monitoring. Designed for Home Assistant with full local control and open YAML configuration. [Details](https://openhardware.directory/devices/airlytix-es1) | [Markdown](https://openhardware.directory/devices/airlytix-es1/md) ## CircuitMess ClockStar 2.0 DIY smartwatch kit powered by ESP32 with ST7735S display, 6-axis IMU, Bluetooth connectivity, and programmable via CircuitBlocks visual coding environment. [Details](https://openhardware.directory/devices/circuitmess-clockstar-2-0) | [Markdown](https://openhardware.directory/devices/circuitmess-clockstar-2-0/md) ## Shelly Plus 2PM ESP32-based dual-relay WiFi/BLE smart switch with per-channel power monitoring via ADE7953, cover/shutter control mode, and 10A per channel. Flashable with Tasmota for local roller blind and dual light control. [Details](https://openhardware.directory/devices/shelly-plus-2pm) | [Markdown](https://openhardware.directory/devices/shelly-plus-2pm/md) ## Sonoff POW Elite 16A ESP32-based WiFi smart switch with high-accuracy power monitoring via CSE7766, 16A relay, LCD display, and DIN-rail mounting. Flashable with Tasmota for local energy tracking and home automation. [Details](https://openhardware.directory/devices/sonoff-pow-elite-16a) | [Markdown](https://openhardware.directory/devices/sonoff-pow-elite-16a/md) ## Sonoff Dual R3 ESP32-based dual-relay WiFi smart switch with per-channel power monitoring, roller shutter mode, and 2×10A outputs. Ideal for motorized blinds with Tasmota shutter calibration and position tracking. [Details](https://openhardware.directory/devices/sonoff-dual-r3) | [Markdown](https://openhardware.directory/devices/sonoff-dual-r3/md) ## Sonoff Zigbee Bridge Pro ESP32-based Zigbee-to-WiFi gateway with CC2652P coordinator chip supporting 128 Zigbee devices. Flashable with Tasmota for local Zigbee bridge operation with Home Assistant via MQTT. [Details](https://openhardware.directory/devices/sonoff-zigbee-bridge-pro) | [Markdown](https://openhardware.directory/devices/sonoff-zigbee-bridge-pro/md) ## Adafruit Metro M7 with AirLift Arduino UNO-compatible Metro board powered by NXP iMX RT1011 at 500 MHz with an ESP32 AirLift WiFi co-processor, 8 MB QSPI Flash, and USB-C — Adafruit's fastest Metro ever. [Details](https://openhardware.directory/devices/adafruit-metro-m7-airlift) | [Markdown](https://openhardware.directory/devices/adafruit-metro-m7-airlift/md) ## Pycom SiPy ESP32-based MicroPython development board with WiFi, Bluetooth LE, and +22dBm SigFox radio (RCZ2/RCZ4). Breadboard-compatible with ultra-low power modes, ideal for long-range sub-GHz IoT deployments. [Details](https://openhardware.directory/devices/pycom-sipy) | [Markdown](https://openhardware.directory/devices/pycom-sipy/md) ## Adafruit PyPortal Titano Large-screen IoT display board with ATSAMD51J20 + ESP32 WiFi coprocessor, 3.5" 320×480 resistive touchscreen TFT, 8MB Flash, microSD, speaker, and USB-C. Designed for Python-powered internet-connected dashboards. [Details](https://openhardware.directory/devices/adafruit-pyportal-titano) | [Markdown](https://openhardware.directory/devices/adafruit-pyportal-titano/md) ## Pycom GPy ESP32-based triple-network MicroPython board with WiFi 802.11 b/g/n, Bluetooth LE, and LTE CAT-M1/NB1 cellular. 4MB RAM, 8MB flash, 22 GPIO, breadboard-compatible. Ideal for global LTE IoT deployments. [Details](https://openhardware.directory/devices/pycom-gpy) | [Markdown](https://openhardware.directory/devices/pycom-gpy/md) ## Pycom FiPy Five-network ESP32 MicroPython board with WiFi, Bluetooth LE, LoRa, SigFox, and dual LTE-M (CAT-M1/NB1). 4MB RAM, 8MB flash, 22 GPIO. The most connected Pycom module for versatile LPWAN IoT applications. [Details](https://openhardware.directory/devices/pycom-fipy) | [Markdown](https://openhardware.directory/devices/pycom-fipy/md) ## Pycom LoPy4 ESP32-based quad-network MicroPython board with WiFi, Bluetooth LE, LoRa (SX1276 868/915/433MHz), and SigFox. 4MB PSRAM, 8MB flash, 24 GPIO. Can function as a nano LoRa gateway. FCC/CE certified. [Details](https://openhardware.directory/devices/pycom-lopy4) | [Markdown](https://openhardware.directory/devices/pycom-lopy4/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 Metro M4 Express AirLift Arduino Uno-compatible board with ATSAMD51J19 Cortex M4F at 120MHz, ESP32 AirLift WiFi co-processor with TLS/SSL, 512KB flash, 192KB RAM, 2MB QSPI flash, 25 GPIO, dual DAC/ADC, and native USB. Arduino shield compatible. [Details](https://openhardware.directory/devices/adafruit-metro-m4-airlift) | [Markdown](https://openhardware.directory/devices/adafruit-metro-m4-airlift/md) ## BigTreeTech KNOMI 2 1.28-inch round 240x240 LCD display for Voron StealthBurner toolhead. ESP32 MCU with WiFi and Bluetooth LE, shows print status, temperatures, and progress with customizable animated UI. [Details](https://openhardware.directory/devices/bigtreetech-knomi-2) | [Markdown](https://openhardware.directory/devices/bigtreetech-knomi-2/md) ## BigTreeTech Panda Knomi 1.28-inch round 240x240 display for Bambu Lab A1, X1, and P1 series printers. ESP32 MCU with 2.4GHz WiFi, customizable GIF animations, shows print status and temperatures wirelessly. [Details](https://openhardware.directory/devices/bigtreetech-panda-knomi) | [Markdown](https://openhardware.directory/devices/bigtreetech-panda-knomi/md)