Código para Latch físico: Touch_calibrate.py
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The document is a Python script for reading a capacitive sensor using a Raspberry Pi GPIO pin. It defines a function to measure the charge time of a capacitor and continuously records the maximum and minimum values of the charge time. The script uses the RPi.GPIO library for GPIO operations and includes a loop that prints the measured value along with the min and max values.
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Código para Latch físico: Touch_calibrate.py
- 1. #!/usr/bin/env python # Reading capacitive sensor with # a single GPIO pin import RPi.GPIO as GPIO, time # Tell the GPIO library to use # Broadcom GPIO references GPIO.setmode(GPIO.BCM) # Define function to measure charge time def RCtime (RCpin): measurement = 0 # Discharge capacitor GPIO.setup(RCpin, GPIO.OUT) GPIO.output(RCpin, GPIO.LOW) time.sleep(0.1) GPIO.setup(RCpin, GPIO.IN) # Count loops until voltage across # capacitor reads high on GPIO while (GPIO.input(RCpin) == GPIO.LOW): measurement += 1 return measurement max=0 min=9999 # Main loop while True: value=RCtime(27) if value > max: max=value elif value < min: min=value print '{0:3d} {1:3d} {2:3d}'.format(value,min,max)