195.192.96.124: Migrated comment #5365

2024-12-09T08:22:31Z

Migrated comment #5365

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@Lisa it does, i found a way to reprogramm "x728-v2.x-plsd-gpiod.py" and save it in "sudo cp -f ./x728-v2.x-plsd-gpiod.py /usr/local/bin/"

#!/usr/bin/env python

import gpiod
import time
import subprocess

# Define the chip and lines
chipname = "gpiochip0" # Please use gpiochip0 if using Raspberry Pi 4/3 hardware
# chipname = "gpiochip4" # Please use gpiochip4 if using Raspberry Pi 5 hardware

line_offset = 6
out_line_offset = 26

# Open the GPIO chip
chip = gpiod.Chip(chipname)

# Get the input line
line = chip.get_line(line_offset)
line.request(consumer="my_program", type=gpiod.LINE_REQ_EV_BOTH_EDGES)

# Get the output line
out_line = chip.get_line(out_line_offset)
out_line.request(consumer="my_program", type=gpiod.LINE_REQ_DIR_OUT)

def print_event(event):
if event.type == gpiod.LineEvent.RISING_EDGE:
print("---AC Power Loss OR Power Adapter Failure---")
print("Shutdown in 5 seconds")
time.sleep(5)

out_line.set_value(1)
time.sleep(3)
out_line.set_value(0)

# Perform safe shutdown
subprocess.run(["sudo", "shutdown", "-h", "now"])
elif event.type == gpiod.LineEvent.FALLING_EDGE:
print("---AC Power OK, Power Adapter OK---")

try:
# Wait for events indefinitely
while True:
event = line.event_wait()
if event:
event = line.event_read()
print_event(event)
except KeyboardInterrupt:
print("Exiting...")
finally:
chip.close()

than just create a service.unit and save it in:
sudo cp -f ./safe_shutdown.service /lib/systemd/system/

[Unit]
Description=Run Python Power Management Daemon

[Service]
Type=simple
ExecStart=/usr/bin/python3 /usr/local/bin/x728-v2.x-plsd-gpiod.py
Restart=always

User=root
Group=root

[Install]
WantedBy=multi-user.target

sudo systemctl daemon-reload
sudo chmod +x /usr/local/bin/xPWR.sh
sudo chmod +x /usr/local/bin/x728-v2.x-plsd-gpiod.py
sudo systemctl enable xPWR
sudo systemctl enable x728-v2.x-plsd-gpiod.py
sudo systemctl start xPWR
sudo systemctl start x728-v2.x-plsd-gpiod.py

Now everybody can use the raspberry with something you switch off to turn the raspberry off, for example a screen.

CommentStreams:Bde16dada61dbb5d25cab17c52c7c11c - Revision history

195.192.96.124: Migrated comment #5365