Pcb Board Design Is Reasonable, No Flash, The Size Is The Same As The Size Of The Id Card, You Can Fit In Your Pocket.
The Use Of Commonly Used Patch Components.
The Left And Right Three Columns Of Components Are Used To Practice Welding, Each Column With Test Points.
The Middle Circular Circuit Is A Water-Lighting Circuit, Which Is Composed Of 4017, Ne555, And Light-Emitting Diodes.
Kindly refer the product description before buying the product.
