MINUA LED Soldering Practice Kit, SMT SMD Component Welding Practice Board NE555 CD4017 Water Flowing Led DIY Kit

Package Included: In order to improve the soldering skill level of students majoring in electronics and electronic enthusiasts, referring to the packaging types of SMD components in the electronic product assembly and debugging skills competition of vocational colleges, the SMD soldering practice board is specially designed to improve the soldering level and speed. 1. Board size: 90 * 60MM 2. Board thickness: 1.6mm 3. Board material: international standard board, all solder pads are tinned, high strength fireproof and fall proof material, which can be disassembled repeatedly. 4. PCB board design is reasonable, the use of SMD components are commonly used. 5. The left and right three columns of components are used to practice soldering, and each column has test points. 6. The circuit in the middle circle is the water lamp circuit, which is composed of CD4017, NE555 and light-emitting diodes. It can work after soldering. 7. The back of the circuit is also used. There is a ruler, which is convenient for measuring components. There are PCB wire examples to facilitate PCB design and use. 8. The working voltage of the circuit is 3 12V 9. This kit contains all the components in the following photos. Number of components: 125 Number of solder joints: 274 Solder length: 35cm (diameter: 0.6mm) Sample soldering time: 35 minutes