Name: TJ-56-10A lucky spinning wheel simulator DIY kit
SKU: 3451
Availability: InStock

The TJ-56-10A lucky spinning wheel simulator DIY kit is designed for electronic soldering training, classroom teaching, and fun crafts. No complex programming is required; it uses a pure analog-digital circuit. After soldering, pressing the center button causes a ring of colored lights to flash randomly and rapidly in a cycle. Releasing the button causes the lights to randomly stop at a specific number, simulating a lottery draw effect. It combines fun and practical teaching. The complete kit includes all components and a matching transparent acrylic shell. After soldering and assembly, it can be used directly as a finished product, serving as both an electronic training tool and a classroom interactive element or a desktop lottery prop.

Product parameters:

Power supply voltage: 3V (DC)
Board size: 51*51mm
Product model: TJ-56-10A

Function description:

The lucky spinning wheel is a tool for predicting where a spinning disc will stop. It can also be used for number estimation games, electronic dice, etc. An electronic lucky draw achieves the same function electronically. This kit arranges 10 LEDs in a circle. When a button is pressed, each LED lights up sequentially, gradually slowing down until it stops moving on a particular LED.

Circuit diagram explanation:

The circuit mainly consists of an NE555 timer and external components forming a multivibrator. When button S1 is pressed, Q1 conducts, and pin 3 of the NE555 outputs a pulse. This causes the CD4017 to output a high level sequentially, driving the 10 LEDs to light up. After the button is released, due to capacitor C1, Q1 does not immediately turn off. As C1 discharges, the conduction sequence of Q1 gradually slows down, the output pulse frequency at pin 3 gradually decreases, and the LED movement frequency also slows down. Finally, after C1 has completely discharged, Q1 turns off, the pulse output at pin 3 of the NE555 stops, and the LEDs stop moving. One “draw the lottery” is thus completed. R2 determines the LED movement speed, and C1 determines the waiting time for the “draw the lottery”.