I'm not much good at programming and therefore I am much more comfortable working with bash shell scripts rather than Python - Python is WAY too picky about syntax and indentation. Anyway, I have this rather lengthy script that I wrote in bash that checks the status of doors, using magnetic reed switches as the sensors. So in my bash script running on a Pi 4, I have commands like this:
Mostly the entire thing is built around those commands, just setting up GPIO pins 17, 18, and 22-25 so I can read the current state, and then reading them. But also, I have to run this short Python script to set up the pullup/pulldown resistors:
(In case you are wondering, pins 22-25 have external resistors on them, which is why I disable the Pi's internal ones on those pins). And that is run once from a bash script, like so:
I'm guessing none of that is going to work on the Pi 5, since RPi.GPIO probably won't work to set up the internal resistors as needed, and the bash commands I am using to read the pin state probably won't work either? I REALLY would rather not have to try to convert this entire bash script to Python (it took me a few days to write just in bash), so is there any way to do all this in bash on the Pi 5?
Code:
for i in {17..18} {22..25}do echo "$i" > /sys/class/gpio/export echo "in" > "/sys/class/gpio/gpio$i/direction" GPIO[$i]=2doneCode:
for i in {17..18} {22..25} do GPIOPREV[$i]=${GPIO[$i]} GPIO[$i]=$(<"/sys/class/gpio/gpio$i/value") .....Code:
!/usr/bin/pythonimport RPi.GPIO as GPIOGPIO.setmode(GPIO.BCM)GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_UP)GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)GPIO.setup(22, GPIO.IN, pull_up_down=GPIO.PUD_OFF)GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_OFF)GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_OFF)GPIO.setup(25, GPIO.IN, pull_up_down=GPIO.PUD_OFF)Code:
# Call python script to initialize the GPIO inputs listed above and set pullup resistors, abort this script on error/root/initialize_gpio_inputs.py || { echo "Error initializing GPIO inputs" >> door.log; exit 1; }Statistics: Posted by berrygood — Wed Mar 20, 2024 11:10 pm