Description
About the circuit:
The circuit uses UM 66T having 64 note ROM memory. Which is capable to store three different tunes.
From fig. The supply is given to IC through a switch S1. When the switch S1 is pressed it will on the IC. The output of IC is in terms of sound. But this signal is not enough to drive the speaker, so transistor T1 is used for amplifying the signal and to drive the speaker. Capacitor C1 is used as a filter capacitor.
The power consumption of circuit is very low. It will work on supply of 3volt.
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