Feature:
1. 7 pcs of 5mm red LED electronic tweezers, kit based on NE555 oscillator circuit and circuit CD4017 counter display kit.
2. You can simulate dice with the kit and get the fun of the game.
3. 100% brand new and high-quality.
4. It is made of premium material,durable and has long service life.
5. It can replace real dice and provides more fun while playing.
Specification:
Features:
- 7 pcs of 5mm red LED electronic tweezers, kit based on NE555 oscillator circuit and circuit CD4017 counter display kit.
- You can simulate dice with the kit and get the fun of the game.
- 100% brand new and high-quality.
- It is made of premium material,durable and has long service life.
- It can replace real dice and provides more fun while playing.
Specification:
Type:Logical IC
Working Temperature:-20~60℃
Voltage:4.5~5V
Color:Blue/Green
Material:Metal
Application:Electronic Circuit
Size:68*35mm/2.68*1.38in
Function: When power is on, 7 LEDs will randomly display multiple points. The player presses the switches S1 and 7 to light the LEDs. After about 7 seconds, the LEDs will start to flash until the stable point is displayed. The entire first "trial" process ends.
Circuit: The circuit is mainly composed of a pulse generator and a decimal counter circuit. The pulse generator and external components are made up of NE555 multivibrator. When you press S1, Q1 turns on, output pulse NE555 3 feet, then outputs CD4017 output high voltage. Different combinations of resistors and transistors can drive 7 LEDs to indicate the number of points. 1-6 points.
| Components and Parts | Number | Value | Packaging | Quantity |
| PCB | 1 | |||
| NE555 Chip | U1 | NE555 | DIP-8 | 1 |
| CD4017 Chip | U2 | CD4017 | DIP-16 | 1 |
| IC Base | 8P | Straight | 1 | |
| IC Base | 16P | Straight | 1 | |
| Switch Button | S1 | 6*6*5 | Straight Black | 1 |
| XH2.54-2P Port | J1 | 2P Straight | White | 1 |
| Electrolytic Capacitor(50V/1UF) | C1 | 1 UF | 4*7mm | 1 |
| Ceramic Capacitor | C2 | 104 | 0.1UF | 1 |
| Resistor | R1 | 10M | 1/4W | 1 |
| Resistor | R2 | 3. | 1/4W | 1 |
| Audion S8550 | Q1,Q2 | S8550 | TO-92 | 2 |
| Resistor | R7 | 1K | 1/4W | 2 |
| Resistor | R11 | 4.7M | 1/4W | 2 |
| Audion S8050 | Q3,Q4,Q5 | S8050 | TO-92 | 3 |
| Resistor | R8,R9,R10 | 470R | 1/4W | 5 |
| Red LED | D2,D3,D4,D5,D6 | Red | 5MM | 7 |
| Resistor | 5,R6,R12,R13,R14 | 10K | 1/4W | 10 |
Package List:
1*Electric Dice NE555 CD4017 Set
Note:
As different computers display colors differently, the color of the actual item may vary slightly from the above images.