Having used a lot of perfboards(dot pcb) to prototype my projects, I thought of a way to make a 7 segment display out of smd leds. Making a segment out of 2 common grounded leds..
I stumbled upon it while trying to determine a nice size for my clock. I drew a mask on perfboard with a marker. Later I redrew it and cut it out:
I soldered on all of the 58 smd leds:
And then used a 0.25mm(30AWG) coated wire to make connections:
That gave me a nice bunch of leds:
All of the segments are connected in the usual matrix style. Every segment is a row and every digit is a column.
The 12 pin header is configured: A, B, C, D, E, F, G, Dots, D1, D2, D3, D4
I forgot to connect the dots ground. It can be connected to whichever digit as another extra segment.