Have you ever wondered how the sounds are produced from an electronic piano and how the sounds differ in each case. It is because these sounds differ in their frequencies.
In this project, we have designed an electronic piano using Timer IC board. The 555 IC is a timer IC that produces frequency. 555 timer IC is operated in Astable multivibrator mode, which can be adjusted using variable resistor or potentiometer. The input voltage also plays a role in producing different sound frequencies.