CircuitPython library for the Adafruit MCP9600 breakout
This is a CircuitPython driver for the MCP9600 thermocouple I2C amplifier. In addition to the MCP9600 breakout, you will also need a thermocouple, which can be found in the Adafruit store. The MCP9600 supports several thermocouple types for different temperature ranges. The “K” type is the default, with a range of -200C to +1372C.
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
Installing from PyPI
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-mcp9600
To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-mcp9600
To install in a virtual environment in your current project:
mkdir project-name && cd project-name python3 -m venv .env source .env/bin/activate pip3 install adafruit-circuitpython-mcp9600
This is a simple example showing the hot junction temperature (the temperature at the tip of the thermocouple). You may need to adjust the I2C frequency if you receive input/output errors.
import board import busio from adafruit_bus_device.i2c_device import I2CDevice from adafruit_mcp9600 import MCP9600 i2c = busio.I2C(board.SCL, board.SDA,frequency=200000) try: # using default I2C register and "K" thermocouple device = MCP9600(i2c) print("temperature(C):",device.temperature) except ValueError: print("MCP9600 sensor not detected")
This example displays the ambient/room and hot junction temperatures at 1 second intervals. Turn on the Mu editor’s plotter option to view the temperatures in a real-time graph.
import board import busio import time from adafruit_bus_device.i2c_device import I2CDevice from adafruit_mcp9600 import MCP9600 i2c = busio.I2C(board.SCL, board.SDA, frequency=200000) try: device = MCP9600(i2c) print("version:", device.version) while True: print(( device.ambient_temperature, device.temperature )) time.sleep(1) except ValueError: print("MCP9600 sensor not detected")
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
For information on building library documentation, please check out this guide.
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