Synthetos

RFID and Heat Detector Arduino Project

I know everyone has done this before.  RFID and arduino that is.  But looking at the example code it looks like the antenna is always in receive mode.  I am not sure how this affects the life of the chip / reader but I thought of adding a way to detect human presence before activating the receiver.

I found some little IR heat detector (HERE: http://www.allelectronics.com/make-a-store/item/IRD-10/INFRARED-DETECTOR-MODULE/-/1.html and tossed together some analog read code and viola.  Now when the IR detector detects over a certain variable heat temp it activates the RFID reader.

Tags: arduino, heat detector, pyro sensor, rfid