Alarm Generator Project Using UM66TXXL CMOS IC
Melody Music Project Description This simple alarm generator electronics circuit utilizes a UM66TXXL TO92 package CMOS IC that generates song depending on the type of IC
used. It has a built in oscillation circuit and need only a few external components to make it work. It is powered by
a power supply range from 1.5V to 4.5 V DC with low power consumption, hence a longer battery lifetime. Once it power on
reset, the melody will begin to sound. The part number for different songs are as listed below.
UM66T05L Home Sweet Home The IC can be used to drive a buzzer directly or driving a speaker though the use of a transistor.
Parts List
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