58 lines
1.1 KiB
Text
58 lines
1.1 KiB
Text
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2020-present Fewtarius
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# Simple script to watch the battery capacity and
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# turn the power LED red when it reaches 25%
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. /etc/profile
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function set_led() {
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case $1 in
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red)
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echo out >/sys/class/gpio/gpio${DEVICE_LED}/direction
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echo 1 >/sys/class/gpio/gpio${DEVICE_LED}/value
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;;
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green)
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echo out >/sys/class/gpio/gpio${DEVICE_LED}/direction
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echo 0 >/sys/class/gpio/gpio${DEVICE_LED}/value
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;;
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yellow)
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echo in >/sys/class/gpio/gpio${DEVICE_LED}/direction
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;;
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esac
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}
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while true
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do
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CAP=$(cat /sys/class/power_supply/battery/capacity)
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STAT=$(cat /sys/class/power_supply/battery/status)
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if [ ${STAT} == "Discharging" ]
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then
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if (( ${CAP} <= 10 ))
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then
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for ctr in $(seq 1 1 5)
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do
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set_led yellow
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sleep .5
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set_led red
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sleep .5
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done
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continue
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elif (( ${CAP} <= 20 ))
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then
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set_led red
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elif (( ${CAP} <= 30 ))
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then
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set_led yellow
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else
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set_led green
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fi
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elif (( ${CAP} >= 95 ))
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then
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set_led green
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fi
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sleep 15
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done
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