This project work is mini piano using 555 timers IC. Piano is a musical instrument that produces a tone according to the button being pressed. On the mini-piano, the soundboard and the strings are neatly positioned underneath the keys at the back of the piano, protected by a simple wooden frame to which fabric is attached to prevent dust getting in. When a key is pressed, the action which results in the striking and dampening of the piano wires, results from a mechanism which contrasts to any existing piano made today: a long thin but sturdy metal rod which reaches halfway down the back of the instrument is lifted. This lifting motion causes the piano wires to be struck and then dampened when the key is released as is typical of a traditional piano, at least on those notes which require dampening (on a minipiano, the highest 13 notes are not dampened).
This system is built around 555timer IC. The 555 timer is operated in astable multivibrator mode. In astable multivibrator mode, the circuit produces accurate free running waveforms, which can be adjusted...READ MORE
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