Often, we experienced “Why it does not work?!” moment, because simply connection was not good, or power was not enough. It sounds simple, but if you are using
so, we made a shield (PCB) that can snap into ‘s header pin so that at least these connections are secure. We put a little checker fabric on top of the PCB so it does not look beige and dull, and to show our Scottish spirit.
We used milling machine (Roland MDX-40) to make our own PCB board. But of course it is a luxury to have access to milling machine if you are not with big institute. In that case you can also try to print your PCB. You can check DIY CIRCUIT PRINTING post to see the detail.
For milling the PCB, I am using Roland MDX-40.
The milling setup for 1 layer copper 1.5mm PCB is following.
:::Engraving (engraving head)
:::hole making (1.5mm drill head)
:::outline cut (1.5mm drill head)