I have been working on a robot using ultrasonic range detectors to patrol around my house next to the wall, and have recently thought of making it pray upon nighly wanderers and attack them with my electronic airsoft gun using a darlington pair transistor to trigger the gun. I belive the best way is to use the infrared frequency accociated with the human body tempeture which I believe to be aroun 2-20:mu:m. I have just now received 10 Heimann LH1878 PIR sensors in the mail which are supposed to get the job of sensing humans quite well. I quickly noticed the 3 pin package. I experimented for a while to conclude that they were polarized. I was hoping to use two of these sensors at the front of my robot to, when triggered, to center and balance the target between equal values of the pir sensor, then attack.
Problem: I am not familiar with the PIR sensor pin setup
( I hope the directional detecting involved with the sensor is adequate)
Anyway, Much help is appreciated
Problem: I am not familiar with the PIR sensor pin setup
( I hope the directional detecting involved with the sensor is adequate)
Anyway, Much help is appreciated
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