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33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
2 months ago
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# SPDX-FileCopyrightText: 2017 Tony DiCola for Adafruit Industries
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# SPDX-License-Identifier: MIT
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# Simple test of the MPR121 capacitive touch sensor library.
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# Will print out a message when any of the 12 capacitive touch inputs of the
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# board are touched. Open the serial REPL after running to see the output.
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# Author: Tony DiCola
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import time
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import board
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import busio
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# Import MPR121 module.
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import adafruit_mpr121
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# Create I2C bus.
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i2c = busio.I2C(board.SCL, board.SDA)
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# Create MPR121 object.
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mpr121 = adafruit_mpr121.MPR121(i2c)
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# Note you can optionally change the address of the device:
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# mpr121 = adafruit_mpr121.MPR121(i2c, address=0x91)
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# Loop forever testing each input and printing when they're touched.
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while True:
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# Loop through all 12 inputs (0-11).
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for i in range(12):
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# Call is_touched and pass it then number of the input. If it's touched
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# it will return True, otherwise it will return False.
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if mpr121[i].value:
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print("Input {} touched!".format(i))
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time.sleep(0.25) # Small delay to keep from spamming output messages.
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