December 21, 2009
about 5 years ago
Hi - I am still a little confused by this. I gather H1 should be connected to +5v, and that GND goes to ground.
What do A1 and A2 connect to? I assume one to a ADC pin, and the other through a resistor to GND, but can’t seem to get it to work.
It would be helpful if the diagram/schematic showed a sample connection.
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