MAY24
Beginner Project: Two Tone Siren
Siren is a very straightforward device but for beginners it is an excellent starting point since it directly interacts with real world via sound and is a great morale booster for next, more advanced projects that shall come.
Consisting of a very low part-count it can also be built on breadboard. This siren in particular uses two NE555 timers which can be replaced with just one NE556 - if you can get your hands on one. It is also called "Sweeping Output Siren" as seen elsewhere.
Schematics and PCB for download
Prepare for PCB toner transfer method
Get your parts ready for soldering
The final product - a two tone siren for your first personal alarm system
Projekt za početnike: Sirena sa dva tona
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