PWM set out

Storic · Joined: 03 Dec 2005 Posts: 182 Location: Australia SA

Hi,
just a little of programing but to a hardware question.
the sample hardware from microchip on the PWM shows PWM pin to a 1K resistor with a .1uf cap to ground to get a average voltage out.
is it possible to have the 1K resistor at 5V to PWM pin with the cap PWM pin to ground to get a average 0-5V output.

I am using a 3.3V micro that has a 5V tolerant pin. Confused

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Matro · Guest

It should be OK since the µC is 5V tolerant.
But I'd better had a transistor...

Matro.

Storic · Joined: 03 Dec 2005 Posts: 182 Location: Australia SA

I was thinking the same, should be OK, and yes it will be going via a transistor.
Has anyone do this this way before. Confused

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