Thank you to everyone for your feedback. The links shared here have offered a great starting point for my learning and to get at the result I've been seeking. I started tinkering with python scripts, but then discovered pinctrl and it allowed me to do exactly what I wanted in a bash script. I've included my script below in case it is useful for someone else in the future.
Code:
pinctrl set 16 puif [[ $(pinctrl get 16 | grep 'hi') == *hi* ]]; then echo "pin is high - circuit open - tank full" echo "Full" > /var/www/html/water_level.txtelif [[ $(pinctrl get 16 | grep 'lo') == *lo* ]]; then echo "pin is low - circuit closed - tank low" echo "Low" > /var/www/html/water_level.txtelse pinctrl get 16 echo "Error" > /var/www/html/water_level.txtfiStatistics: Posted by craftycraft — Fri Mar 29, 2024 12:42 am