Product Model: OKY2254
ESP8266 ESP-12 WeMos D1 Mini WIFI 4M Bytes Development Board Module
Product Description
1.This is D1 mini, it is a mini WIFI board based on ESP-8266EX.
2.11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire.
3.Supported(except D0).
4.1 analog input(3.3V max input).
5.A Micro USB connection.
6.Complete with pin headers.