Note:
Please note that it requires 2 *AAA battery, which are NOT including in the package.
The circuit consists of 16 LEDs (Light Emitting Diodes). And these 16 LEDs are divided into 4 groups, each group flashing once, and the blinking frequency is different. Makes it looks like a small Christmas tree. Easy DIY.
Features:
Simple and practical circuit.
Low power consumption.
Less integrated circuit drivers.
External wiring kit - With pluggable plug, it is easy to replace parts at any time, which is beneficial to circuit debugging.
It also allows us to deepen our understanding of the circuit principles in the debugging process.
Specification:
Type: LED DIY Christmas Tree Set
Battery type: 2 * AAA Battery (NOT Included)
Weight: Approx. 32g
Package list:
1 * PCB Circuit Board
1 * Battery Box Assembly
Formed by an oscillating circuit and is generated by the following principle:
- After the first charge, the capacitors C1 and C4 are charged.
- Capacitors C2 and C3 will continue to charge.
- When transistors Q1 and Q4 are simultaneously turned on, capacitors C1 and C4 are discharged.
- Capacitors C2 and C3 are fully charged and transistors Q1 and Q4 will be closed while capacitors C1 and C4 are again charged.
- Transistors Q2 and Q3 are turned on and capacitors C2 and C3 are discharged.
By analogy, the flashing of the speed is the oscillation frequency, and the frequency is determined by the capacitance of the resistor R&C.
