Schematic Diagrams

Useful schematic and wiring diagrams. ✔ ✔ Enjoy electronic circuits, let your idea comes to hardware

Very simple LED Flashing with sound

If we wasp one size miniature serial loudspeaker (8 ohm speaker) suits. Flashing LED number FRL – 4403 which be mourn shine that can can blink. By must not use other equipment help. unless , power supply gives with it only. Already will hear the sound goes out a loudspeaker in the rhythm that it works with.

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