Hi Hank,
Hope this may assist you. In such matters I tend to use and optical isolator which has 2 LED's and transistors in one 8 pin package such as the NTE3086.
Best, Ed
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Re: Sinking current from 9V into a PIC pin.
Hi Hank,
Hope this may assist you. In such matters I tend to use and optical isolator which has 2 LED's and transistors in one 8 pin package such as the NTE3086.
Best, Ed
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