git://git.gir.st / hardpass.git / blame
| Commit | Line | Data |
|---|---|---|
| bc85b807 | 1 | #!/bin/bash |
| 2 | ||
| 3 | # monitor GPIO pin 17 for shutdown signal | |
| 4 | ||
| 5 | # export GPIO pin 17 and set to input with pull-up | |
| 6 | echo "17" > /sys/class/gpio/export | |
| 7 | echo "in" > /sys/class/gpio/gpio17/direction | |
| 8 | echo "high" > /sys/class/gpio/gpio17/direction | |
| 9 | ||
| 10 | # wait for pin to go low | |
| 11 | while [ true ] | |
| 12 | do | |
| 13 | if [ "$(cat /sys/class/gpio/gpio17/value)" == '0' ] | |
| 14 | then | |
| 15 | echo "Raspberry Pi Shutting Down!" | |
| 16 | #halt & | |
| 17 | shutdown -h now | |
| 18 | exit 0 | |
| 19 | fi | |
| 20 | sleep 1 | |
| 21 | done |