Some friends and i are working on an arduino project for a class in school. we are trying to make an arduino robot that uses an RFID tag to find keys, go to the keys, and let off an alarm when the keys are found. is it possible to tell if the arduino is getting closer to the tag (like a hot cold typ…

RFID signal strength

jremington May 1, 2014, 3:40pm 2

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