Solderless LED Matrix?

Great Video, Pedro,. I see you are having fun and getting really valuable experience. Keep it up.
@ CR Those Pololu links were great. Good prices on good jumpers... 22 Ga. Too. Most of those jumpers with the round ends are 30 Ga wire... Caused me a lot of grief before I learned. $10 for 50 pieces is a good price because those last forever.

Bob