USB to Serial converter CH340G IC available on the board. The ESP8266 is a popular microcontroller with built-in WiFi that is similar to Arduino. The power and programming connections on most ESP8266 ESP-12 boards are inconvenient. You'll need to figure out how to provide 3.3V. These boards take care of that by breaking out the pins to the common Arduino UNO design, allowing you to utilise DuPont cables and even UNO shields directly (if compatible).
Specification
Controller | ESP8266 |
Digital I/O Pins | 11 |
Analog I/O Pin | 1 |
Operating Voltage | 3.3V |
Flash Memory | 4 MB |
Size | 68x54x12mm |
Country of Origin | China |