How to Build Fire Alarm Circuit using Photodiode | DIY Projects

Опубликовано: 05 Апрель 2026
на канале: Embedded Programmer
594
7

In this tutorial, we are going to build a basic fire alarm using photodiode:

Here is what you need to do the project:

AA Battery ×4
Photodiode ×1
Buzzer ×1
Red LED ×1
NPN Transistor ×1

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#DIYProjects #FireAlarm #ElectronicSchematics