How to access the status of the user button from within a Python script?

Hello Fred,

Using the example of a brief interrupt script, you can see below how the USER button of the IOT2050 is utilised within a Python code:

import mraa

# Initialize the I/O pin representing the USR Button as an input with a pull-up resistor

pin = 20

intPin = mraa.Gpio(pin)

intPin.dir(mraa.DIR_IN)

intPin.mode(mraa.MODE_PULLUP)

# Define the callback function for the interrupt

def interrupt_callback(args):

     print("USR Button pressed. Interrupt triggered!")

# Register the interrupt callback function

intPin.isr(mraa.EDGE_BOTH, interrupt_callback, interrupt_callback)

     print("Starting Interrupt-Service-Routine for Pin: " + repr(pin))

# Wait forever

while True:

     pass

BR