Rotating LED Board:

Parameter introduction:
1. Board size: 89*58MM

2. Board thickness: 1.6mm

3. International standard plate, all pads are tinned, high-strength fireproof and anti-fall material, which can be disassembled and assembled repeatedly.

4. The design of the PCB board is reasonable, and the commonly used SMD components are used.

5. The 3 columns of components on the left and right are used to practice welding, and each column has a test point.

6. The circular circuit in the middle is a running water lamp circuit, which is composed of CD4017, NE555, and light-emitting diodes. It can work after the welding is correct.

7. There is a ruler on the back of the circuit, which is convenient for measuring components. There are PCB wire examples, which are convenient for PCB design and use. Special instructions: the symbols on the back are for reference, and the back does not need to be welded. This kit does not come with components on the back of the board.

8. The working voltage of the circuit is 3~12V.