With this you just type the text you want on your computer and your 5×5 dot matrix shows the message.
Plz comment and let me know what you think.
Step 1: You wil need..
Arduino- have the uno-
Sharp nose [liers for hard to reach places (optional)
5×100 ohm resistors (brown black brown)
Step 2: Diagram
I know it looks sideways but this is how i connect it to my Arduino
Step 3: Starting with connections
Here is how i coneckted the leds. it gets a bit conplecated but works. feel fre 2 try own metheds
I made it that all the anodes are connected down, like in the pic. the cathodes are so that only 2 are connected. The one on the left shears a line with the one on his right.
The catrodes are then connected to allow a horizontal connection as n the photo.
I just wired them all to a neutral location so that can connect them to my arduino easier
Step 5: To Arduino
now just connect according to the diagram with the resistors on the cathrodes.
For more detail: 5X5 dot matrix on Arduino