Video Game Fishing Circuit
Source: InternetPublisher:酷到被通缉 Keywords: electronic games NE555 Updated: 2020/03/31
Circuit working principle: The time base circuit NE555 is connected into a monostable circuit as a timer, and the music
block HYI01 and other components form a music circuit. Press AN 1, pin 3 of NE555
outputs high
level, relay K operates, its contacts K' and K" are closed, and the small bulb lights up. If
AN 2 is closed at this time, the music circuit is triggered to play music.
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