You can use the Velleman MK103 Sound to Light minikit for different and fun applications because the four LEDs light up simultaneously to every sound within its range. You could use it as a doorbell or telephone indicator or just watch it flash to the sound of music. The MK103 Velleman minikit is easy to build with all through-hole soldering and an onboard microphone. There’s a potentiometer to adjust the sensitivity and it operates from a 9V battery. The battery holder is included and mounts on the PCB.
Four LEDs light up simultaneously to every sound within its range
Electronic kit, assembly required
Power consumption: max. 12mA
Dimensions: 1.6 x 2.2 x 1.4"
