SuperUser
Posts: 15,133
Registered: ‎08-07-2008
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Input resistance A+ port

What's the input resistance on the A+ port.
I added a voltage divider that I calculated at 1.99 volts and before plugging it in to the A+ port I tested with a volt meter and see 2.5 volts at max sensor deflection.

Correction just over 4 volts
But that is with no load
I have the ground jumpered to the A- port as in the photo here wiki.ubnt.com/File:ColliHigh-2.jpg
Where the image shows a 22K I have a 10 and for the 33k I have 40k
Want to make sure before I blow it up!
Walks in, tells it like it is, walks out , milks a cow