Datasheet

CircuitPython Code

It's easy to use the MCP4725 digital to analog converter with CircuitPython and the Adafruit CircuitPython

MCP4725 module. This module allows you to easily write Python code that controls the output voltage from the DAC.

First wire up a MCP4725 to your board exactly as shown on the previous pages for Arduino using an I2C connection.

Here's an example of wiring a Feather M0 to the sensor with I2C:

Board 3V to sensor VIN

Board GND to sensor GND

Board SCL to sensor SCL

Board SDA to sensor SDA

Next you'll need to install the Adafruit CircuitPython MCP4725 library on your CircuitPython board. Make sure you are

running the latest version of Adafruit CircuitPython for your board before starting..

You'll need to install the necessary libraries to use the hardware--carefully follow the steps to find and install these

libraries from Adafruit's CircuitPython library bundle. For example the Circuit Playground Express guide has a great

page on how to install the library bundle for both express and non-express boards.

Remember for non-express boards like the Trinket M0, Gemma M0, and Feather/Metro M0 basic you'll need to

manually install the necessary libraries from the bundle:

adafruit_mcp4725.mpy

You can also download the adafruit_mcp4725.mpy from its releases page on Github.

Before continuing make sure your board's lib folder or root filesystem has the adafruit_mcp4725.mpy file copied over.

Next connect to the board's serial REPL so you are at the CircuitPython >>> prompt.