AVR-Chat

>
>
> New designs is another story.  An 8 pin Tiny controller for less than a
> buck has about done away with many of the 555 timer applications.


Yup.

I've seen "courtesy tone" circuits for bare-bones repeater controllers, with
a 556, but I've implemented a pretty much full-featured repeater controller
on a tiny-15. No crystal, just the T15 and a few discretes.


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