Description
⭐DIY electronic hourglass soldering kit, it is a learning kit to simulate the sandglass movement, includes the basic SMD components and good quality PCB boards and 57pcs 3mm LED diode, need the user to finish the assemble process..⭐It is not only a creative night lamp and decoration, but also a nice soldering practice project for electronic enthusiast and DIY beginners, perfect for school basic electronic educational experiment, STEM training and so forth..⭐The input voltage is 5V DC interface, and three No. 5 batteries can also be used. A key switch can adjust the speed of LED light movement. The size of the plate is 40 * 85mm.⭐Professional skills, provide schematic diagram, component list, finished product drawing and video effect display. To complete this suite, you need a certain foundation of professional knowledge and practical training experience..⭐High quality material, high-quality double-sided tin sprayed FR-4 circuit board, easy to tin welding and not easy to oxidize, which is conducive to success.
