To multiplex two or more single digit SSD’s, each corresponding pin must be connected to that of the other displays, such as in this schematic.
I’ve accomplished this with 4 displays by using a daughterboard with pin headers, which I then connected to the displays with jumper cables. It was a little messy with so many wires. And I could have easily just used a 4 digit dynamic display.
I need to multiplex two of these single digit displays now. Finding a pre-made dynamic two digit display in the color and size I need (green) hasn’t been easy. So i’d like to just “make” the two digit displays myself. After all, I don’t need just one of these two digit displays for my project, but 4 of these in total. That would be 4 daughterboards.
My idea now is to attach the two displays adjacent to one another on pin headers, then solder cables directly, pin to pin.. This way I don’t need the daughterboards and can save some space.
How would you go about soldering cables to the headers? I’m thinking just wrap the cables once around the header, then heat and bring in solder.. Or is there a better alternative?
Wire wrap also comes to mind, but those factory made wire wrap headers are expensive.