![]() ![]() It can be used for on-site audible and flashing alarms. ![]() The source code at the end of this tutorial will show you how. It works as Red Flashing and High Decibel Buzzer after power ON. The piezo buzzer is activated through the Arduino using PWM (pulse width modulation) signals. DC 24V 100dB Electronic Alarm with Strob Red Light, High Decibel Electronic Beep Buzzer for Car Alarm Home Security SystemīJ-3 is a DC 24V 100dB Audible Visual Alarm.
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