32 lines
1017 B
Python
32 lines
1017 B
Python
# Simple demo of the MAX31865 thermocouple amplifier.
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# Will print the temperature every second.
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import time
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import machine
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import adafruit_max31865
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# Initialize SPI bus and sensor.
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spi=machine.SPI(
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-1,
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sck=machine.Pin(14, machine.Pin.OUT),
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mosi=machine.Pin(13, machine.Pin.OUT),
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miso=machine.Pin(12, machine.Pin.OUT)
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)
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spi.init(baudrate=115200, polarity=0, phase=1)
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cs=machine.Pin(2)
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sensor=adafruit_max31865.MAX31865(spi, cs)
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# Note you can optionally provide the thermocouple RTD nominal, the reference
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# resistance, and the number of wires for the sensor (2 the default, 3, or 4)
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# with keyword args:
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# sensor = adafruit_max31865.MAX31865(spi, cs, rtd_nominal=100, ref_resistor=430.0, wires=2)
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# Main loop to print the temperature every second.
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while True:
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# Read temperature.
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temp = sensor.temperature
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# Print the value.
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print("Temperature: {0:0.3f}C".format(temp))
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# Delay for a second.
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time.sleep(1.0)
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