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2 Minute PIR Alarmby Robotix_au
$5 Dollar Burglar Alarm!by johnnyrockstah
Arduino-based Burglar and Fire Alarm Systemby mykh
Light Sensor Circuit/Burglar alarmby sabarna
LASER BURGLAR ALARMby Pranjal Joshi
Grab Alarm Using arduino + LDR + piezo buzzerby ShrobonB
103 - Burglar Alarm by ThisIsSteve
ARDUINO Burglar Alarm Using Infrared Emitter-Detector pairby ShrobonB
make your very own laser burglar alarmby coolkids
Create an Alarm In Batchby Arbitror
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