Ray wrote:
>Opps last letter I said Port A instead of Port B so here it is corrected:
>
>I keep noticing that when using portB (16f876) that most people add external
>pullup
>resistors when used for input. Why not use the built in weak pullup
>resistors?
>Should I avoid them and use external pullups for switches all the time?

Possibly because;
1) They need 'stiffer' pullups than what the weak ones provide.
2) They forgot or don't realise that they are available.
3) They only want pullups on certain pins.
Regards...

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