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Electronic Christmas Tree Fun Circuit
Source: InternetPublisher:难得正经 Keywords: BSP Updated: 2020/12/05
Circuit working principle: A multivibrator is composed of IC
1 (5G555). Adjust Rp
to change the frequency of the oscillator. According to the formula t=0.693 (R1+R2+ Rp)·C,
the oscillation period is 0,5-l5 s. . The output pin 3 of lC1 serves as
the clock input of the decimal counting decoder of IC 2 (CC4017) .
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