Maixium voltage on a input pin

[Acetronics2]

Hi, Robert

I think we mixed DIGITAL and ANALOG inputs ...

here you want 0 > 12 v to be 0 > 5 v !!!

so, you need a voltage DIVIDER ...

see Darrel's site for such an application :

http://www.pbpgroup.com/modules/wfse...p?articleid=25

Everything explained ...

Alain