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  1. 45
      raspi-bash/ampel.sh

45
raspi-bash/ampel.sh

@ -1,24 +1,65 @@
#! /usr/bin/bash
pin_rot=17 # z.B. Pin 11 (BCM 17)
pin_gelb=27 # z.B. Pin 13 (BCM 27)
pin_gruen=22 # z.B. Pin 15 (BCM 22)
state_rot=0
state_gelb=0
state_gruen=0
gpiochip="gpiochip0"
function resetPins() {
echo "Ampel aus"
gpioset "${gpiochip}" ${pin_rot}=0 ${pin_gelb}=0 ${pin_gruen}=0
}
function setPins() {
gpioset "${gpiochip}" ${pin_rot}=${state_rot} ${pin_gelb}=${state_gelb} ${pin_gruen}=${state_gruen}
}
function ampel() {
case ${1} in
1)
echo "Ampelphase rot"
state_rot=1
state_gelb=0
state_gruen=0
setPins
sleep 5
;;
2)
echo "Ampelphase rot/gelb"
state_rot=1
state_gelb=1
state_gruen=0
setPins
sleep 1
;;
3)
echo "Ampelphase grün"
state_rot=0
state_gelb=0
state_gruen=1
setPins
sleep 3
;;
4)
echo "Ampelphase gelb"
state_rot=0
state_gelb=1
state_gruen=0
setPins
sleep 2
;;
esac
}
for i in 1 2 3 4; do
ampel "${i}"
for phase in 1 2 3 4 1; do
ampel "${phase}"
done
resetPins

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