Edge button
The button is connected to GPIO20 in the Raspberry PI compute module and can be customized as you like. Can be pressed with a left touch of the Blade latch.
Python script example:
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setup(20, GPIO.IN, pull_up_down=GPIO.PUD_UP) #Button to GPIO20
try:
while True:
button_state = GPIO.input(20)
if button_state == False:
print('Button Pressed...')
time.sleep(0.2)
except:
GPIO.cleanup()