This should be run on boot with sudo privileges.
#!/bin/bash
BUTTON=16
PWR=21
LED=5
COMMANDS=("lp -o fit-to-page 1.jpg" "lp -o fit-to-page 2.jpg" "lp -o fit-to-page 3.jpg" "lp -o fit-to-page 4.jpg" "lp -o fit-to-page 5.jpg" "lp -o fit-to-page 6.jpg" "lp -o fit-to-page 7.jpg" "lp -o fit-to-page 8.jpg" "lp -o fit-to-page 9.jpg" "lp -o fit-to-page 10.jpg" "lp -o fit-to-page 11.jpg" "lp -o fit-to-page 11.jpg" "lp -o fit-to-page 12.jpg" "lp -o fit-to-page 13.jpg" "lp -o fit-to-page 14.jpg" "lp -o fit-to-page 15.jpg" "lp -o fit-to-page 16.jpg"
# initialize serial printer serial0 at 19200 baud
stty -F /dev/serial0 19200
# initialize GPIO state
gpio -g mode $BUTTON up
gpio -g mode $PWR up
gpio -g mode $LED out
for i in `seq 1 5`;
do
gpio -g write $LED 1
sleep 1
gpio -g write $LED 0
sleep 1
done
while :
do
# check for button press
if [ $(gpio -g read $BUTTON) -eq 0 ]; then
$(shuf -n1 -e "${COMMANDS[@]}")
echo | echo | echo | lp
#sleep 1
# wait for user to release button before continuing
while [ $(gpio -g read $BUTTON) -eq 0 ]; do continue; done
fi
# check for shutdown switch
if [ $(gpio -g read $PWR) -eq 0 ]; then
# Must be held for 2+ seconds before shutdown is run...
starttime=$(date +%s)
while [ $(gpio -g read $PWR) -eq 0 ]; do
if [ $(($(date +%s)-starttime)) -ge 2 ]; then
sudo shutdown -h fi
done
fi
done
Watch the Full Episode:
Episode 365: Twilight Zone Fortune Telling Machine
More Supplemental Content:
Project: Serling [OUTTAKES] (and an Apple rant)
Adobe InDesign Files For Project Serling