Month: June 2012

TCRT5000 IR Emitter/Sensor

I finished the carrier board for our tachometer project. This is simply the TCRT5000 IR emitter/sensor module, with the 150 ohm resistor for the IR LED, and the 10k ohm resistor for the phototransistor, as described in http://arduinotronics.blogspot.com/2012/06/reflective-optical-sensor-with.html I used a 3 pin header with the GVS pin standard as described in http://arduinotronics.blogspot.com/2012/06/ground-voltage-signal-wiring-standard.html The inexpensive …

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