5pcs Simple Electronic Organ Kit DIY NE555 Soldering Practice Board Multi-notes Keyboard Set

Instruction:Click here to open
Introduction
By pressing the key to change the different inputs of the NE555 oscillation resistor, NE555 generates different signal frequencies and drives the buzzer to make different sounds through the capacitor coupling.
The kit can generate 16 notes by key combination.
Feature
Operating voltage:DC4-12V
Standby current:≤1mA
Operating current:≤40mA
Number of notes:16
Power switch:Yes
Welding difficulty:Easy
Board size:143 x 22 (L x W)
Package includes
5 x Electronic Keyboard Kit

Additional information