I am running a Raspberry Pi 3B+ with Buster and I have an x728 UPS for battery backup and it has a button for safe shutdown and reboot. Works fine.
However , when I run Node.red this button does not work anymore. It blinks the way it should but it doesn't actually shutdown or Reboot the Pi.
Does Node.Red prevent these rc.local services from executing while it is running?
Any help would be appreciated! Below is the .sh install file for the x728 if that helps
#X728 RTC setting up
sudo sed -i '$ i rtc-ds1307' /etc/modules
sudo sed -i '$ i echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device' /etc/rc.local
sudo sed -i '$ i hwclock -s' /etc/rc.local
sudo sed -i '$ i #x728 Start power management on boot' /etc/rc.local
#x728 Powering on /reboot /full shutdown through hardware
#!/bin/bash
#sudo sed -e '/shutdown/ s/^#*/#/' -i /etc/rc.local
echo '#!/bin/bash
SHUTDOWN=5
REBOOTPULSEMINIMUM=200
REBOOTPULSEMAXIMUM=600
echo "$SHUTDOWN" > /sys/class/gpio/export
echo "in" > /sys/class/gpio/gpio$SHUTDOWN/direction
BOOT=12
echo "$BOOT" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio$BOOT/direction
echo "1" > /sys/class/gpio/gpio$BOOT/value
echo "X728 Shutting down..."
while [ 1 ]; do
shutdownSignal=$(cat /sys/class/gpio/gpio$SHUTDOWN/value)
if [ $shutdownSignal = 0 ]; then
/bin/sleep 0.2
else
pulseStart=$(date +%s%N | cut -b1-13)
while [ $shutdownSignal = 1 ]; do
/bin/sleep 0.02
if [ $(($(date +%s%N | cut -b1-13)-$pulseStart)) -gt $REBOOTPULSEMAXIMUM ]; then
echo "X728 Shutting down", SHUTDOWN, ", halting Rpi ..."
sudo poweroff
exit
fi
shutdownSignal=$(cat /sys/class/gpio/gpio$SHUTDOWN/value)
done
if [ $(($(date +%s%N | cut -b1-13)-$pulseStart)) -gt $REBOOTPULSEMINIMUM ]; then
echo "X728 Rebooting", SHUTDOWN, ", recycling Rpi ..."
sudo reboot
exit
fi
fi
done' > /etc/x728pwr.sh
sudo chmod +x /etc/x728pwr.sh
sudo sed -i '$ i /etc/x728pwr.sh &' /etc/rc.local
#X728 full shutdown through Software
#!/bin/bash
sudo sed -e '/button/ s/^#*/#/' -i /etc/rc.local
echo '#!/bin/bash
BUTTON=26
echo "$BUTTON" > /sys/class/gpio/export;
echo "out" > /sys/class/gpio/gpio$BUTTON/direction
echo "1" > /sys/class/gpio/gpio$BUTTON/value
SLEEP=${1:-4}
re='^[0-9\.]+$'
if ! [[ $SLEEP =~ $re ]] ; then
echo "error: sleep time not a number" >&2; exit 1
fi
echo "X728 Shutting down..."
/bin/sleep $SLEEP
#restore GPIO 26
echo "0" > /sys/class/gpio/gpio$BUTTON/value
' > /usr/local/bin/x728softsd.sh
sudo chmod +x /usr/local/bin/x728softsd.sh
sudo echo "alias x728off='sudo x728softsd.sh'" >> /home/pi/.bashrc
#X728 Battery voltage & precentage reading
#!/bin/bash
#Get current PYTHON verson, 2 or 3
PY_VERSION=`python -V 2>&1|awk '{print $2}'|awk -F '.' '{print $1}'`
#sudo sed -e '/shutdown/ s/^#*/#/' -i /etc/rc.local
echo '#!/usr/bin/env python
import struct
import smbus
import sys
import time
import RPi.GPIO as GPIO
# Global settings
# GPIO is 26 for x728 v2.0, GPIO is 13 for X728 v1.2/v1.3
GPIO_PORT = 26
I2C_ADDR = 0x36
GPIO.setmode(GPIO.BCM)
GPIO.setup(GPIO_PORT, GPIO.OUT)
GPIO.setwarnings(False)
def readVoltage(bus):
address = I2C_ADDR
read = bus.read_word_data(address, 2)
swapped = struct.unpack("<H", struct.pack(">H", read))[0]
voltage = swapped * 1.25 /1000/16
return voltage
def readCapacity(bus):
address = I2C_ADDR
read = bus.read_word_data(address, 4)
swapped = struct.unpack("<H", struct.pack(">H", read))[0]
capacity = swapped/256
return capacity
bus = smbus.SMBus(1) # 0 = /dev/i2c-0 (port I2C0), 1 = /dev/i2c-1 (port I2C1)
'> /home/pi/x728bat.py
if [ $PY_VERSION -eq 3 ]; then
echo '
while True:
print ("******************")
print ("Voltage:%5.2fV" % readVoltage(bus))
print ("Battery:%5i%%" % readCapacity(bus))
if readCapacity(bus) == 100:
print ("Battery FULL")
if readCapacity(bus) < 20:
print ("Battery Low")
#Set battery low voltage to shut down, you can modify the 3.00 to other value
if readVoltage(bus) < 3.00:
print ("Battery LOW!!!")
print ("Shutdown in 10 seconds")
time.sleep(10)
GPIO.output(GPIO_PORT, GPIO.HIGH)
time.sleep(3)
GPIO.output(GPIO_PORT, GPIO.LOW)
time.sleep(2)
' >> /home/pi/x728bat.py
else
echo '
while True:
print "******************"
print "Voltage:%5.2fV" % readVoltage(bus)
print "Battery:%5i%%" % readCapacity(bus)
if readCapacity(bus) == 100:
print "Battery FULL"
if readCapacity(bus) < 20:
print "Battery Low"
#Set battery low voltage to shut down, you can modify the 3.00 to other value
if readVoltage(bus) < 3.00:
print "Battery LOW!!!"
print "Shutdown in 10 seconds"
time.sleep(10)
GPIO.output(GPIO_PORT, GPIO.HIGH)
time.sleep(3)
GPIO.output(GPIO_PORT, GPIO.LOW)
time.sleep(2)
' >> /home/pi/x728bat.py
fi
sudo chmod +x /home/pi/x728bat.py
#X728 AC Power loss / power adapter failture detection
#!/bin/bash
sudo sed -e '/button/ s/^#*/#/' -i /etc/rc.local
echo '#!/usr/bin/env python
import RPi.GPIO as GPIO
import time
PLD_PIN = 6
BUZZER_PIN = 20
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(PLD_PIN, GPIO.IN)
GPIO.setup(BUZZER_PIN, GPIO.OUT)
while True:
i = GPIO.input(PLD_PIN)
if i == 0:
print("AC Power OK")
GPIO.output(BUZZER_PIN, 0)
elif i == 1:
print("Power Supply A/C Lost")
GPIO.output(BUZZER_PIN, 1)
time.sleep(0.1)
GPIO.output(BUZZER_PIN, 0)
time.sleep(0.1)
time.sleep(1)
' > /home/pi/x728pld.py
sudo chmod +x /home/pi/x728pld.py
