ICSP

When using most Arduino development boards and the like, you plug in a USB cable, set up your software, hit upload, and off it goes, blinking away or doing ...

Although a simple device, the tools we have available to design, perfect, and ultimately make something like this are truly amazing! This was constructed using KiCad's ability to export the board as a solid model, which was then imported into Fusion 360 to build the jig around. This makes it easy to determine where each pin is going, and allows you to swap the single standoff/screws to the other side if needed.