OpenWrt Forum Archive

Topic: How to generate PWM pulse with GPIO on fonera

The content of this topic has been archived on 2 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Post #1
elfo78
3 Jun 2008, 14:32

Is possible?

Regards,
Elia

Post #2
elfo78
5 Jun 2008, 09:10

Please... if possible, help me.
My idea is a circuit control for a Fuel Cell to produce HHO in my car.
I see motor stepper controlled by Fonera, but no one explains how.

Regards,
Elia

Post #3
elfo78
12 Jun 2008, 10:09

I use thi script:

#!/bin/sh
g=/proc/gpio/0_out
v=12500
i=0
 
while [ $i != 100 ]
do
i=`expr $i + 1`
 
echo $i
 
echo 1 > $g
usleep $v
echo 0 > $g
usleep $v
 
done

but I can't over 12500usec and nanosleep isn't in firmware, only usleep is present...
... a way to generate PWM?

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