Electronic Lucky Wheel Kit Electronic DIY Production Kit Fun Electronic Production Kit Training Kit

Supply voltage: 3-5V

Dimensions: 58 * 58mm

Circuit board with FR-4 military grade A material

1. Many welding pads are not easy to fall off

2. prone to self-bending (referring to the non-human case caused by the bending), the poor plate will change with time and the environment and bending.

Impedance is more stable and reliable

4. The tolerance of the plate and the stability of some parameters, A material performance was very tough, which is the benefit of the relative price of some other sheet metal.

Function play: lucky turntable is the first to predict the rotation of the disk stop, in the end will stop at which which position of the tool. Can also be used for valuation number games, electronic dice, lottery and so on. Electronic lucky turntable is the way to achieve the same function of the electronic, the package of 10 LED configuration into a circle, when you press the button, each LED sequence turns light, flow faster and slower, and finally stopped at a certain LED is no longer moving. If the last light that LED and the player predicted the same, then the "winning" the.

Circuit principle: the circuit is mainly composed of pulse generator and a decimal counter circuit.

Pulse generator by the NE555 and external components constitute a multivibrator, when you press the button S1 Q1 turn on, NE555 3 feet output pulse, the CD4017 10 output output high-speed drive 10 LED turns light. After the release of the button, due Q1 will not immediately cut off, with the voltage drop across the C1, Q1 conduction process gradually weakened, 3 pin output pulse frequency slow, LED mobile frequency also slowly down Finally, when the C1 discharge is completed. Q1 cut off, NE555 3 feet no longer output pulse, LED stopped moving. A "lottery" process was completed. R2 determines the LED movement speed, C1 decided to wait for "lottery" time.

First, the assembly of the finished product effect map