Grove I2C 4 Ch/16 Bit Analog to Digital Converter for Raspberry Pi/Arduino/ESP8266 Comes with open source drivers for the Raspberry Pi, ESP8266 and the Arduino 4 Channels of 16 bit Analog to Digital Conversion based on TI ADS1115 Works Perfectly with the Pi2Grover Grove Interface to the Raspberry Pi On board status LEDS for Power and I2C activity Full Documentation for Raspberry Pi on www.switchdoc.com