LED Matrix Question

[Dave]

mekohler, Why not series connect the LED's and use only 1 resistor. 1.8 volts x 5 = 9 volts. The driver you have is open collector so you can use 12 volts for the LED source and use say a 150 Ohm resistor in series and that will give you 20Ma. for the string.

Dave Purola
N8NTA

[Ioannis]

Thats what I meant but was not very clear. Anyway the link http://www.injektilo.com/LEDMATRIX/8...%20Example.JPG is just that in picture! Seems to be the best choice right now.

Ioannis

[mister_e]

seems to have a problem with the link

i think it could be http://www.injektilo.com/LEDMATRIX/8...%20Example.JPG

now let's show the schematic <IMG SRC="http://www.injektilo.com/LEDMATRIX/8%20Led%20Matrix%20Example.JPG">