R2S添加风扇控制和OLED屏幕

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# 打开上面 2个文件网页
# ssh 登陆软路由

# 进入第一个文件 /usr/bin/ 目录

FusionWrt# cd /usr/bin/

# 创建并编辑文件 start-rk3328-pwm-fan.sh（内容在下面）

FusionWrt# vi start-rk3328-pwm-fan.sh

# 查看文件内容

FusionWrt# cat start-rk3328-pwm-fan.sh

# 给文件设置权限

FusionWrt# chmod 777 start-rk3328-pwm-fan.sh

# 查看文件属性（权限开启 rwx）

FusionWrt# ls -lh start-rk3328-pwm-fan.sh

-rwxrwxrwx 1 root root 1.4K Nov 19 16:19 start-rk3328-pwm-fan.sh

# 第一个完成，操作第二个

# 进入第二个文件 /etc/init.d/ 目录

FusionWrt# cd /etc/init.d/

# 创建并编辑文件（内容在下面）

FusionWrt# vi fa-rk3328-pwmfan

# 查看文件内容

FusionWrt# cat fa-rk3328-pwmfan

# 给文件设置权限

FusionWrt# chmod 777 fa-rk3328-pwmfan

# 查看文件属性（权限开启 rwx）

FusionWrt# ls -lh fa-rk3328-pwmfan

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# 强制删除文件

rm -f /var/log/httpd/access.log

# 删除目录及文件

rm -rf /var/log/httpd/access

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/etc/init.d/fa-rk3328-pwmfan enable
/etc/init.d/fa-rk3328-pwmfan start

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#!/bin/bash

if [ ! -d /sys/class/pwm/pwmchip0 ]; then
    echo "this model does not support pwm."
    exit 1
fi

if [ ! -d /sys/class/pwm/pwmchip0/pwm0 ]; then
    echo -n 0 > /sys/class/pwm/pwmchip0/export
fi
sleep 1
while [ ! -d /sys/class/pwm/pwmchip0/pwm0 ];
do
    sleep 1
done
ISENABLE=`cat /sys/class/pwm/pwmchip0/pwm0/enable`
if [ $ISENABLE -eq 1 ]; then
    echo -n 0 > /sys/class/pwm/pwmchip0/pwm0/enable
fi
echo -n 50000 > /sys/class/pwm/pwmchip0/pwm0/period
echo -n 1 > /sys/class/pwm/pwmchip0/pwm0/enable

# max speed run 5s
echo -n 46990 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle
sleep 5
echo -n 25000 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle

# declare -a CpuTemps=(55000 43000 38000 32000)
# declare -a PwmDutyCycles=(1000 20000 30000 45000)

declare -a CpuTemps=(75000 63000 58000 52000)
declare -a PwmDutyCycles=(25000 35000 45000 46990)

declare -a Percents=(100 75 50 25)
DefaultDuty=49990
DefaultPercents=0

while true
do
	temp=$(cat /sys/class/thermal/thermal_zone0/temp)
	INDEX=0
	FOUNDTEMP=0
	DUTY=$DefaultDuty
	PERCENT=$DefaultPercents
	
	for i in 0 1 2 3; do
		if [ $temp -gt ${CpuTemps[$i]} ]; then
			INDEX=$i
			FOUNDTEMP=1
			break
		fi	
	done
	if [ ${FOUNDTEMP} == 1 ]; then
		DUTY=${PwmDutyCycles[$i]}
		PERCENT=${Percents[$i]}
	fi

	echo -n $DUTY > /sys/class/pwm/pwmchip0/pwm0/duty_cycle;

        echo "temp: $temp, duty: $DUTY, ${PERCENT}%"
        # cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq

	sleep 2s;
done

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#!/bin/sh /etc/rc.common

START=96
 
start() {
	echo "fa-pwmfan started"
	/usr/bin/start-rk3328-pwm-fan.sh > /dev/null&
}