I'd like to make a bicolor/RGB LED matrix, for this example I'll use 2x2 in size.
Suppose I have this matrix arrangement, without any wiring yet, only the LEDs:
I want to make each LED programmable. I have this in mind:
I tried to turn
0,0 to red and
1,1 to red too. For only
0,0, I can easily connect the
pin 0 and
pin 5 to the power source, but when I tried to add
1,1 with connecting
pin 2 and
pin 6, every LED is on.
Where is my mistake in the circuit? Thank you very much, I'd appreciate any answers given.