Tell you how to make an easy voice-controlled melody lamp
The sound controlled melody lamp is powered by CR2032 battery
Open source: GPL 3.0
Materia List:
1 PCB by JLCPCB Use promotional code "JLCath" to get extra coupons
2 Components by LCSC
The voice-controlled melody lamp is composed of two common transistor amplifiers and 5 LED lamps
It can convert the external sound into electrical signal through microphone microphone, so that the LED light changes with the external sound The LED can flash with the rhythm in the music environment, which is very dynamic.
1 With small volume, the size of PCB board is only 3 ×4 (cm);
2 All straight insert device, increase welding plate, convenient welding;
3 CR2032 battery powered, easy to carry.
It is a very easy DIY project, can be used to kill time, anything you need to modified ,can be easily made in Easyeda and get manufactured in JLCPCB, The total cost will not over $1 for each pcs.
BOM list also enclosed for reference.
PCB files
