10 years ago
matrix. I've actually extended that lesson to realize any non-planar
graph adds difficulty to soldering.
Anyway. I was trying to build a 5x5 LED matrix (because I only have 25
LEDs right now, and it seemed like a good start).
I got two rows in, before I realized I wasn't going to be able to finish
it the way I was thinking. I was soldering all of the anodes together
for each row, and that was working fine, but then when I wanted to
connect the cathodes, I realized I hadn't left enough perforations to
solder enough jumpers and the LEDs. I also began to realize how much
work it was going to be to solder it all together. I'm fine with the
work, its good practice. What I'm wondering though, is am I doing it
wrong? Is there a better way to build your own display matrix? I know I
could buy them prebuilt, and I might do that for larger projects, but
this is a learning experience as much as a means-to-an-end.
On that same note, would it be generally cheaper to buy 8x8 led matrix
pre-made, or to build them myself? What about if I wanted RGB display?
Thanks for the feedback.