I've got a generic (non-marked) silicon piezo transducer that I want to use as an input to Uno, it's out of a cheap-o tire pressure gauge. The problem I'm having is the output voltage is 1.730V at 0 psi and 1.780V at 150 psi. So what kind of circuit will allow the Arduino to read 50mV difference on A0 pin?
Thanks!
piezoresistive pressure transducer to analog read?
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Re: piezoresistive pressure transducer to analog read?
This might to do the job:
http://www.adafruit.com/products/1083
It has a Programmable Gain Amplifier on the front end. Set it up in differential mode and you can set full-scale (12 bits) to +-0.256V
http://www.adafruit.com/products/1083
It has a Programmable Gain Amplifier on the front end. Set it up in differential mode and you can set full-scale (12 bits) to +-0.256V
Please be positive and constructive with your questions and comments.