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1,13 €
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Última actualización: 2026-01-29T23:48:33.315Z
Descripción
Product introduction:This product is a sound-controlled LED water lamp kit. It is a DIY kit and needs to be soldered and installed by yourself. It is suitable for electronic beginners, enthusiasts, and students to use in welding and assembly training.Product parameters:Power supply voltage: 3-12VBoard size: diameter 50CMInstructions for use:
Circuit principle: Q1 and its peripheral circuits form a simple amplifying circuit. MK converts the sound signal into an electrical signal, which is coupled to Q1 via C2 for amplification, and a voltage signal with high and low changes is formed at the collector of Q1. The voltage with sufficient amplitude is sent to CD4017 for counting The input terminal (14 feet), every time a pulse arrives, the high level of the counter's Q0-9 output moves 1 bit in turn to light up the corresponding light-emitting diode, thereby producing the effect of a water lamp.This kit can display the functions of CD4017 very intuitively. It is a kit for learning counters, frequency dividers, and lantern controllers. At the same time, the kit has very good effects, is interesting and practical, and is also a material for beginners to get started.Circuit function: 10 LEDs emit light in turns according to the sound size and height of the water. The louder the sound, the faster the water speed, which can display the functions of the 4017 completely and intuitively.The higher the voltage, the brighter the LED will be, and the higher the voice control sensitivity.
