Sensors on arduino

Here you find some useful information about the sensoring projects I did:

Photointerrupters and rotary encoders

quadrature_encoderIn this series I built an optical rotary encoder that senses the position and also the direction of rotation:

I did all this  because I needed a simple winding machine.


Temperature sensors

National Semiconductor

Some special issues I stumbled upon when using a LM35 analog temperature sensor connected to an arduino.






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