open up your pcb design tool of your choice, if you want to get high seas doubloons, kicad is suggested, it’s also really nice and all open source , you can also use EasyEDA which is another popular choice
Create a new project, and open up the schematic
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To have electronics, we need electricity. How we will get that electricity? Batteries of course!
Click here to proceed to the next part of the guide where we create a power source for our PCB.