39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
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# SPDX-License-Identifier: MIT
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"""
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CircuitPython Essentials Storage CP Filesystem code.py file
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For use with boards with a built-in red LED.
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"""
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import time
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import board
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import digitalio
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import microcontroller
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led = digitalio.DigitalInOut(board.LED)
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led.switch_to_output()
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try:
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with open("/temperature.txt", "a") as temp_log:
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while True:
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# The microcontroller temperature in Celsius. Include the
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# math to do the C to F conversion here, if desired.
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temperature = microcontroller.cpu.temperature
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# Write the temperature to the temperature.txt file every 10 seconds.
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temp_log.write('{0:.2f}\n'.format(temperature))
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temp_log.flush()
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# Blink the LED on every write...
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led.value = True
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time.sleep(1) # ...for one second.
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led.value = False # Then turn it off...
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time.sleep(9) # ...for the other 9 seconds.
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except OSError as e: # When the filesystem is NOT writable by CircuitPython...
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delay = 0.5 # ...blink the LED every half second.
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if e.args[0] == 28: # If the file system is full...
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delay = 0.15 # ...blink the LED every 0.15 seconds!
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while True:
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led.value = not led.value
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time.sleep(delay)
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