NE555 Electronic Piano Parts Eight note electronic keyboard electronic kit products DIY Fun Production Module

Products > Module > NE555 Electronic Piano Parts Eight note electronic keyboard electronic kit products DIY Fun Production Module

NE555 Electronic Piano Parts Eight note electronic keyboard electronic kit products DIY Fun Production Module

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Products Description

Product Introduction

The scale of this circuit can produce different sounds, and different keys correspond to different scales. The gameplay of an electronic keyboard is to press different keys with your fingers to produce different scales. The principle is that circuit NE555 is connected to an oscillator, and the frequency of the oscillator is determined by the resistance value of the circuit (R1-R10), so different keys will produce different sounds. The advantages of this circuit production are simple and practical, low power consumption, and the circuit is driven by integrated circuits with fewer components. The circuit is simple and easy to understand, which can deepen our understanding of circuit principles during the debugging process.

Circuit principle

Resistors R2-R9 are the selection of oscillation frequencies, which together with resistors R1, capacitors C2, and NE555 form 9 different oscillation frequencies. The frequency selection signal is controlled by the S1-S8 key switch, and the output of NE555 audio will emit a loud sound on the speaker SP. When operating, press the keys and the electronic keyboard will emit a continuous and loud sound. If different switches are pressed in sequence, you can try to play beautiful music.