This circuit produces the classic bell chime “Ding-Dong” but no mechanical parts used to it. With integrated designed for such use and some components will achieve the same effect and solid state (no moving parts).
Archives for the ‘Fun circuits’ Category
Bell Electronic : Ring Ding Dong
Metal detectors based on 555 IC
A very simple metal detector electronics, the project can be designed using a simple 555 timer integrated circuit. As you can see in the schematics, electronic projects require some electronic parts are available.
BELL ELECTRONICS
This Electronic bell circuit uses three op amp741. The Supply voltage of this circuit is dual type, it is between +-5 and +-12V (mounting dual regulated power supply is perfectly adapted). You can apply it as electronic door bells. By pressing and releasing the button immediately, we obtain a sound whose frequency is determined by the setting of the P1.
