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[DPRG] PWM device/circuit?
Subject: [DPRG] PWM device/circuit?
From: Eric Sumner
kd5bjo at gmail.com
Date: Mon Jun 11 12:39:48 CDT 2007
> I am using a Parallax Stamp to perform input processing, motor control (PWM)
> and a few other chores. I would like to put a device between the stamp and
> the H-Bridge which would accept a serial input from the stamp that would
> then be converted to a PWM signal for the H-bridge so I could relieve the
> stamp of the chore of doing the PWM.
>
> Something like the stamp sends a decimal 128 and the PWM signal is 50% duty
> cycle... A 256 would give a 100 % duty cycle.
>
> Any suggestions would be greatly appreciated.
I'd look into using a 555-based PWM circuit, and using a digital
potentiometer to interface it to your Stamp.
-- Eric
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