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Long press delay (parameterized) #31

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Long press delay (parameterized) #31

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3de223e
Add long press delay
N6RDV May 10, 2022
0dbd292
Merge pull request #1 from N6RDV/N6RDV-long-press
N6RDV May 10, 2022
6846a9d
Update listen-for-shutdown.py
N6RDV May 10, 2022
465bcaf
Update listen-for-shutdown.py
N6RDV May 10, 2022
b850787
Update listen-for-shutdown.py
N6RDV Aug 27, 2024
b244c3d
Update listen-for-shutdown.py
N6RDV Aug 27, 2024
76ebf78
Update listen-for-shutdown.py
N6RDV Aug 27, 2024
d96786f
Update listen-for-shutdown.py
N6RDV Aug 27, 2024
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32 changes: 29 additions & 3 deletions listen-for-shutdown.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,36 @@

import RPi.GPIO as GPIO
import subprocess
import time
from time import sleep

button_gpio=3
relay_gpio=4

short_press=0.1
long_press=5

GPIO.setmode(GPIO.BCM)
GPIO.setup(3, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.wait_for_edge(3, GPIO.FALLING)
GPIO.setup(button_gpio, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(relay_gpio, GPIO.OUT)

def main():
relay_state=GPIO.input(relay_gpio)
while True:
GPIO.wait_for_edge(button_gpio, GPIO.FALLING)
counter = 0
while GPIO.input(button_gpio) == 0 and counter < long_press:
time.sleep(0.1)
counter = round(counter + 0.1, 1)
print('Shutdown button is pressed ' + str(counter))
if counter >= long_press:
print('Shutting down')
subprocess.call(['shutdown', '-h', 'now'], shell=False)
elif counter >= short_press:
relay_state = not relay_state
print('Changing relay state to: ' + str(relay_state))
GPIO.output(relay_gpio, relay_state)
time.sleep(0.5)

subprocess.call(['shutdown', '-h', 'now'], shell=False)
if __name__ == '__main__':
main()