Infrared Sensor

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tidalwave62

Joined Nov 6, 2015
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shteii01

Joined Feb 19, 2010
4,667
The sensor does not have 3 outputs. The sensor receives the power/electricity through 2 pins. Page 4, lower right corner:
1 is Output of the sensor, this is the pin you hook up to the input of the uC.
2 is Ground.
3 is VCC, 2.1 to 5.5 volts.

Since you got this sensor info from arduino website, I would dig there and see how it was used with Arduino product.
 
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