LED Fun Electronic Dice Circuit Board DIY Welding Exercise Kit Experimental Production Assembly Teaching Product Components
LED Fun Electronic Dice Circuit Board DIY Welding Exercise Kit Experimental Production Assembly Teaching Product Components
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Condition : New
Type : Voltage Regulator
Product name: LED fun electronic die circuit DIY welding kit
Product model: TJ-56-40
Working voltage: DC4.5~6V
PCB size: 75 * 35mm
Description:
When the machine is powered on, the seven LEDs will display a random number of points. When the player presses the switch S1, the seven LEDs will all light up. After a few seconds, the seven LEDs will start flashing until the stable number of points is finally displayed. The whole process of "rolling dice" is over.
Circuit principle
The circuit is mainly composed of a pulse generator and a decimal counter circuit. The pulse generator consists of the NE555 and peripheral components to form a multivibrator. When the key S1 is pressed, Q1 is on, and the three pins of the NE555 output pulses, then the five output terminals of the CD4017 output high levels in turn. Through different combinations of resistors and triodes, seven LEDs can be driven to emit light to indicate the points 1-6.
Circuit diagram:
Package Included:
