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$5 Dollar Burglar Alarm!by johnnyrockstah
Arduino-based Burglar and Fire Alarm Systemby mykh
2 Minute PIR Alarmby Robotix_au
Light Sensor Circuit/Burglar alarmby sabarna
Grab Alarm Using arduino + LDR + piezo buzzerby ShrobonB
Arduino Push Alerts for Doorbell, Burglar Alarm, Smoke Alarms etcby oliverb
103 - Burglar Alarm by ThisIsSteve
ARDUINO Burglar Alarm Using Infrared Emitter-Detector pairby ShrobonB
LASER BURGLAR ALARMby Pranjal Joshi
make your very own laser burglar alarmby coolkids
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