Vasile Surducan wrote:

>> A pull-down resistor would create a voltage divider with the pull-up,
>> wouldn't it?
> 
> 3k3 pull up and 100K pull down?

That would work -- but there may be reasons why you don't want to use such
small pull-ups. 

Is there an advantage to this, compared to the "normal" way of using only
pull-ups or only pull-downs?

Gerhard

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