YouTube channel presented his work on a Christmass tree PCB with small LEDs taht blink. The circuit is more than basic and the entire project is amde out of 2 vertical boards in a shape of a Christmas tree and one horizontal PCB taht will eb the base. There is a soldered connection ebtween these boards that arrive in the shape of a KIT so you could mount it at home. On the vertical PCBs we can see a lot of LEDs of different colours but also some resistors, a few transistors and capacitors taht will create the blink effect.
As we can see, the base will be glued on top of a battery pack of 4.5V taht will supply the entire circuit
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