adafruit_mcp9808

CircuitPython library to support MCP9808 high accuracy temperature sensor.

• Author(s): Scott Shawcroft

Implementation Notes

Hardware:

• Adafruit MCP9808 High Accuracy I2C Temperature Sensor Breakout (Product ID: 1782)

Software and Dependencies:

• Adafruit CircuitPython firmware for the supported boards: https://github.com/adafruit/circuitpython/releases
• Adafruit’s Bus Device library: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice

Notes:

1. Datasheet: http://www.adafruit.com/datasheets/MCP9808.pdf

class adafruit_mcp9808.MCP9808(i2c_bus, address=24)

Interface to the MCP9808 temperature sensor.

Parameters:

• i2c_bus (I2C) – The I2C bus the MCP9808 is connected to.
• address (int) – The I2C address of the device. Defaults to 0x18

Quickstart: Importing and using the MCP9808

Here is an example of using the MCP9808 class. First you will need to import the libraries to use the sensor

import board
import adafruit_mcp9808

Once this is done you can define your board.I2C object and define your sensor object

i2c = board.I2C()   # uses board.SCL and board.SDA
mcp = adafruit_mcp9808.MCP9808(i2c_bus)

Now you have access to the change in temperature using the temperature attribute. This temperature is in Celsius.

temperature = mcp.temperature

temperature

Temperature in Celsius. Read-only.