1PC Electronic Dice DIY Kit 5mm Red LED Interesting Parts NE555 CD4017 Electronic Production Suite LED Diode Board

Description

Descriptions:Electronic dice kit is based on the NE555 oscillator circuit and fun circuit CD4017 counter display kit.Can simulate the dice, make fun of the game.Parameters:Supply voltage: 4.5-5VDimension: 74 x 35mmNote: This is a DIY kit, you need to assemble it.Function:When a power-up, 7 LED will randomly display a number of points, 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.Circuit diagram:

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