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The 4-bit inputs are weighted (A0 to A3 and B0 to B3)
with each voice 1500ms
Supports Real Time Clock
Interruption gap: 10mm
74HC85 is a 4-bit magnitude comparator that can be expanded to almost any length
Buzzer 5V adiustable The 4-bit inputs are weightedIntroduction : This buzzer is an active buzzer, which means that it will buzz at a predefined frequency (2300 300 Hz) on its own even when you just apply steady DC power. Features : Rated Voltage : 5V. Operating Voltage : 4 8V. Resonant Frequency : 2300 300 Hz . Operating Temperature : 20C to 45C.
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