ITEM NAME:3 Pcs D1 Mini Module NodeMCU Lua WIFI ESP8266 ESP-12F Development Board Description: - D1 mini WIFI board based on ESP-8266EX. - 11 digital input / output pins, all pins have interrupt / pwm / I2C / one-wire - supported (except D0) - 1 analog input (3.3V max input) - a Micro USB connection - Comes with 3 pieces Specification: - Material: PVC - Size: approx. 42*27*10mm/1.65*1.06*0.39" Package Included: 3 Pieces ESP8266 Wifi Development Board Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement..D1 mini WIFI board based on ESP-8266EX. - 1 analog input (3.3V max input). - 11 digital input / output pins, all pins have interrupt / pwm / I2C / one-wire. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.