hi,
im doing vibrating mattress with sound sensor and force sensing resistor.
in my project, there are two reading in seriel monitor which is value from sound sensor and from FSR.
My problem now is when i integrate all the circuit, the value interchange..value that should be for sound sensor it become value for FSR while value for FSR it sense for value from sound sensor.. why all this happended?
tq
You forgot to add the diagram and the code (inside code tags).
Without that we can only guess.
The Arduino has only one A/D. And a muxer that selects the analogue inputs in sequence.
If you do things wrong, one input can "bleed" into the other.
There are a few options I can think off.
One is to read the input twice, and only use the second reading.
Another one is to add a 100n cap from each analogue input to ground.
Post the diagram with part values if you want detailed help.
Leo..
If the values are exactly interchanged then you have a wiring error or pin number error in your sketch.