WeMos D1 UNO R3 + ESP8266 WiFi IoT Arduino

A development board that allows the integration of the Wi-Fi module (ESP8266) with shields with a spacing compatible with UNO R3. This gives great opportunities for the development of the loT project. This board is fully compatible with NodeMCU and WeMos D1

Specification:
Fully compatible with WeMos D1 ESP8266
Works based on ESP-8266EX with built-in PCB antenna
USB-UART converter (CH340G)
The spacing of the connectors is compatible with UNO R3
Programming with Arduino IDE possible (after installing ESP8266 Core)
Digital inputs / outputs: 11 (max 3.3V / line)
Support Wireless Software Update (OTA)
Voltage stabilizer: 5 V / 1 A and 3.3 V
Microcontroller reset button (RESET)
Maximum input voltage (5.5 x 2.1 plug): 24 V DC
Possibility of power supply via micro-USB connector
Tile sizes: 69 mm x 54 mm x 15 mm
Mounting holes with a diameter of 3 mm

Warning!
The maximum allowed voltage on the lines of the ESP8266 system is 3.3 V. Make sure that the add-on module attached to the board does not force the lines of the ESP8266 system to a higher voltage than allowed.