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Temperature Measurement

Temperature
		sensors You can measure temperature on the VM2 in many ways, including the following:
  • Thermistors: you can use a VM2 analogue input, a bias resistor and a linearising function
  • PT100 sensors: you can make or buy a circuit to read the resistance of a PT100 sensor, and use this linearising function
  • Thermocouples: use a 18-bit or higher ADC on the I2C bus to digitise thermocouples directly. You will need careful thermal design of the thermocouple connections and be able to measure the temperature of the 'cold' junction (e.g. with a thermistor). See our circuit and code snippet.