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How much resistance to gnd before too much noise seen?

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grizedale

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Hello,

We have GPIO,0 of PIC10F204 set up as an input pin.
this pin has a 15K resistor to ground.

15K is quite a high resistance, so will the GPIO,0 pin sometimes detect high signals due to noise?

If not, then what level of resistance would result in noise? (i.e. false high signals being detected) 100K? 1M? 10M? ...more?
 

15K is quite a low resistance.
I reckon you would have to go > 4M7 before you have that problem
 
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