piclist 2002\09\13\124810a >
Thread: How to fade a LED?
face picon face BY : Wouter van Ooijen email (remove spam text)

> I would like to make a LED fade up and down by using a PICF628.
> I imagine that it could be done by alternating periods of on/off.

Be glad you don't use a 16f84, because a 16f628 has a PWM output that is
meant exactly for this purpose. Just wire a LED to the PWM output pin,
suitable resistor sets the 'full on' current, and use the pwm setting to
reduce the average current.

An example (just replace the low-pass filter with a LED + resistor):

Wouter van Ooijen

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