The MCP9808 is an awesome, high accuracy temperature sensor that communicates over I2C. Its available on Adafruit as a breakout.

This driver depends on:

• Adafruit CircuitPython
• Bus Device

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-mcp9808

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-mcp9808

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-mcp9808

Getting the temperature in Celsius is easy! First, import all of the pins from the board, board.I2C() for native I2C communication and the thermometer library itself.

import board
import adafruit_mcp9808

Next, initialize the I2C bus in a with statement so it always gets shut down ok. Then, construct the thermometer class:

# Do one reading
with board.I2C() as i2c:
    t = adafruit_mcp9808.MCP9808(i2c)
    # Finally, read the temperature property and print it out
    print(t.temperature)

API documentation for this library can be found on Read the Docs.

For information on building library documentation, please check out this guide.

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.