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Topic: Advice on multiplexing sensors (Read 6262 times) previous topic - next topic

CrossRoads

Yes, no ground connections - think of the sensors as one leg and the wiper of a pot, the third leg is missing/not wired.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

ycans

Of course, thanks for your support. I hope this is better.

CrossRoads

Give it a shot, let us know what kind of readings you see.
With Resistance >10K, you may need to wait longer to let things settle (i.e. for the signal to charge the ADC Sample & Hold capacitor) for a good reading.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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