Introduction

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.

Dependencies

This driver depends on:

• Adafruit CircuitPython

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

Usage Example

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")

Contributing

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