PWM Fan on Nanopi M4 ??
i found a running task on friendlyelec desktop called "pwm fan"
But i found no more informations how to connect a pwm fan to the Nanopi M4
Which pins are needed to connect ?
Can i use a normal 5V Fan or is a special Fan needed ?
Anyone aware of this ?
Slightly improved and simplified script (still room for improvement, I guess).
#!/bin/bash
if [ ! -d /sys/class/pwm/pwmchip1/pwm0 ]; then
echo 0 > /sys/class/pwm/pwmchip1/export
fi
sleep 1
while [ ! -d /sys/class/pwm/pwmchip1/pwm0 ];
do
sleep 1
done
ISENABLE=`cat /sys/class/pwm/pwmchip1/pwm0/enable`
if [ $ISENABLE -eq 1 ]; then
echo 0 > /sys/class/pwm/pwmchip1/pwm0/enable
fi
echo 50000 > /sys/class/pwm/pwmchip1/pwm0/period
echo 1 > /sys/class/pwm/pwmchip1/pwm0
-
Reputation Points