The ADC Pi can also be used with the Arduino range of development boards or any other processor with an I2C interface.
The Arduino library for MCP3424 from ArduSat allows you to easily use the 8 different analogue inputs on the ADC Pi with your Arduino project and stack up to 4 ADC Pi boards, giving you up to 32 x 18-bit ADC inputs.
You can download the library and sample code from our GitHub repository
The image below shows how you can connect your ADC Pi to your Arduino UNO using only 4 wires.
![ADC Pi connected to an Arduino Uno](/docs/kb/adcpi/arduino/adcpi-arduino.webp)
Address Table for ADC Pi inputs
Pin 1 |
Pin 2 |
ADC Address |
Low or Float
|
Low or Float
|
0x68
|
Low
|
Float
|
0x69
|
Low
|
High
|
0x6A
|
Float
|
Low
|
0x6B
|
High
|
Low
|
0x6C
|
High
|
Float
|
0x6D
|
High
|
High
|
0x6E
|
Float
|
High
|
0x6F
|
(images created with Fritzing)