Taking up a very interesting and new course at Uni, Applied Informatics, I managed to delve deeper into the inner workings of a lot of devices that make up the modern world. I got a surface ...
Overview: The Fire Alarm System is a project developed using Arduino microcontroller along with a GSM module, buzzer, and flame sensor. It is designed to detect the presence of fire and send an alert ...
A buzzer has two pins, namely positive and negative. The positive terminal is represented by the ‘+’ symbol and negative terminal is represented by the ‘-’ symbol just like an led and a capacitor.
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