Getting started with the TCRT5000 IR sensor and a switch input

MSP430 Switch Input

The information below explains how to connect a switch input to your MSP430, which you might use to let your robot detect when it has touched the wall in the Race to the Wall.

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Download PDF of the switch input example shown above.

TCRT5000 Infrared Reflective Sensor

The TCRT5000 shown below is an infrared (IR) reflective colour sensor that was included in the kit you received at the beginning of the RoboSumo project (TCRT5000 datasheet). It contains an IR LED and phototransistor in a single package. There are all sorts of useful things you can do with this extremely inexpensive sensor, but right now you’re main priority is probably to use it to detect the black finish line in the Race to the Wall.

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The information below introduces the TCRT5000 IR sensor and explains how to connect it to a digital input pin on the MSP430.

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Download PDF of the TCRT5000 example shown above.

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