JFET

Voice controlled melody light-plugin_V1.0

Overview

1. Function description:

The voice-activated melody light is composed of two common emitter triode amplifier circuits and 5 LED lights.
It can convert external sounds into electrical signals through the microphone, so that the LED lights change with the changes in external sounds.
The voice-controlled melody light's LED can flash with the rhythm in a music environment, which is very dynamic.

2. Design features:

Small size, PCB board size is only 3cm × 4cm;
Full direct plug-in device, enlarged pad for easy soldering;
CR2032 battery powered, easy to carry.

3. Video demonstration:

Link to station B: https://www.bilibili.com/video/BV1gV411Z7U2?from=search&seid=3089735648132946887
The following is a video preview. For high-definition videos, please visit the B station link above. Remember to watch it three times~

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2024-11-24 20:14:46

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