Price: $6.99
(as of Jun 04,2023 08:43:46 UTC – Details)
💎【 Wheel of Fortune】:The Wheel of Fortune is a tool that first predicts where the spinning disc will stop when it stops. It can also be used for number estimation games, electronic dice, etc. The electronic lucky wheel is to achieve the same function electronically.
⚡【Supply voltage】:3V DC
🎯【Circuit principle and introduction of key components】:
🎯【1】:The kit configures 10 LED lights into a circle. When a button is pressed, each LED light turns on in turn, and the flow speed becomes slower and slower, and finally stops on a certain LED and stops moving. If the last LED that lights up is the same as the player predicted.
🎯【2】:The circuit is mainly composed of NE555 and peripheral components to form a multivibrator. When the button S1 is pressed, Q1 is turned on, and the 3-pin of NE555 outputs a pulse. Due to the existence of capacitor C1, Q1 will not be turned off immediately. With the discharge of C1, the conduction process of Q1 gradually slows down, the output pulse frequency of pin 3 gradually slows down, and the moving frequency of the LED also slows down.
🎯【3】:Finally, after the discharge of C1 is completed, Q1 is turned off, the 3-pin pulse of NE555 stops outputting, and the LED does not move any more. A “draw” is thus completed. R2 determines the moving speed of the LED, and C1 determines the time to wait for the “draw”.
🍀【DIY Soldering Kit】: It is widely used in schools to help students learn basic mechanical and electronic skills.There are many life scenarios for this circuit application, and it is a kind of circuit that circuit designers need to master.
🍀【Easy Assembly】: The connection that was clearly mapped and labeled on the board makes it easy to assemble. Even beginners can easily solder successfully.
📞【Wholesale business】:We have been engaged in the wholesale and retail business of electronic related products for a long time. Welcome letter to discuss wholesale business. The larger the amount, the better the price.
⚡【Supply voltage】:3V DC
🎯【Circuit principle and introduction of key components】:
🎯【1】:The kit configures 10 LED lights into a circle. When a button is pressed, each LED light turns on in turn, and the flow speed becomes slower and slower, and finally stops on a certain LED and stops moving. If the last LED that lights up is the same as the player predicted.
🎯【2】:The circuit is mainly composed of NE555 and peripheral components to form a multivibrator. When the button S1 is pressed, Q1 is turned on, and the 3-pin of NE555 outputs a pulse. Due to the existence of capacitor C1, Q1 will not be turned off immediately. With the discharge of C1, the conduction process of Q1 gradually slows down, the output pulse frequency of pin 3 gradually slows down, and the moving frequency of the LED also slows down.
🎯【3】:Finally, after the discharge of C1 is completed, Q1 is turned off, the 3-pin pulse of NE555 stops outputting, and the LED does not move any more. A “draw” is thus completed. R2 determines the moving speed of the LED, and C1 determines the time to wait for the “draw”.
🍀【DIY Soldering Kit】: It is widely used in schools to help students learn basic mechanical and electronic skills.There are many life scenarios for this circuit application, and it is a kind of circuit that circuit designers need to master.
