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
similar content
- Two transistor audio amplifier (22-02-2004) [@Schematics/Audio devices]
- Source codes for my PIC projects published (16-02-2010) [@News]
- Connecting two LEDs on a single uC pin v2 (14-02-2004) [@Schematics/Microcontrollers]
- Two tone siren v3 (24-05-2010) [@Schematics/Audio devices]
- SMS Box project (05-05-2007) [@Projects]
- Phone line recorder project published (02-03-2010) [@News]
- Miniature projector with lasers (29-09-2009) [@News]
- SMS Box project published (05-05-2007) [@News]
- Inductive Loop Detector - Project published (19-02-2014) [@News]
- Small electronic siren v2 (10-08-2007) [@Schematics/Audio devices]
add comment
Please log-in!
You can log-in on forum link: Login page. After logging-in, return to this page and click refresh in your browser.