39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
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# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import time
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import board
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import adafruit_dht
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# Initial the dht device, with data pin connected to:
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dhtDevice = adafruit_dht.DHT22(board.D18)
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# you can pass DHT22 use_pulseio=False if you wouldn't like to use pulseio.
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# This may be necessary on a Linux single board computer like the Raspberry Pi,
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# but it will not work in CircuitPython.
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# dhtDevice = adafruit_dht.DHT22(board.D18, use_pulseio=False)
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while True:
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try:
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# Print the values to the serial port
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temperature_c = dhtDevice.temperature
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temperature_f = temperature_c * (9 / 5) + 32
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humidity = dhtDevice.humidity
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print(
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"Temp: {:.1f} F / {:.1f} C Humidity: {}% ".format(
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temperature_f, temperature_c, humidity
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)
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)
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except RuntimeError as error:
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# Errors happen fairly often, DHT's are hard to read, just keep going
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print(error.args[0])
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time.sleep(2.0)
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continue
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except Exception as error:
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dhtDevice.exit()
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raise error
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time.sleep(2.0)
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