enwi
/ fan_control.sh
Last active
November 17, 2019 13:55
Little shell script that reads the temperature of a raspberry pi cpu and a connected harddrive using smartctl and controls a GPIO pin where a fan should be connected.
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| #!/bin/bash | |
| c_FAN=26 # gpio pin the fan is connected to | |
| c_MIN_TEMPERATURE=45 # temperature in degrees c when fan should turn on | |
| c_TEMPERATURE_OFFSET=2 # temperarute offset in degrees c when fan should turn off | |
| c_HARDDRIVE="sda" # name of your harddrive | |
| temperature_offset=$(( $c_MIN_TEMPERATURE - $c_TEMPERATURE_OFFSET )) | |
| fan_state=0 |