A Little project to practice soldering and reading diagrams.
I bought:
https://ift.tt/2OQ004B
Function:
When power-up, 7 LED will randomly display a number, players press the switch S1,7 all lit LED only after about 7 seconds LED light starts blinking, until finally showed stable points. Throughout the end of the first “crap” process.
Circuit:
Circuit mainly by the pulse generator and a decade counter circuit. Pulse generator and external elements by NE555 multivibrator, when you press the button S1 when Q1 turns on, the output pulse NE555 3 feet, then five turns the output CD4017 output high, resistors and transistors by different combination, can drive seven LED light to indicate the number of points 1-6 points.
Music: http://www.bensound.com
Credits logo: Graphicrepublic – http://www.Freepik.com
source
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