I am trying to hook Arduino to 5x7 LED bi-color matrix. Eventually I want to use 74hc595 shift registers to drive several matrixes. But now I am having hard time running even one matrix directly off the Arduino.
Here is the datasheet for the matrix: vvv.jameco.com/Jameco/Products/ProdDS/2077351.pdf
I realize this is a newbie question, but this is the first time I am dealing with these matrixes and I am no expert in electronics.
I just wired the 1 and 2 pins of matrix (green and red anodes) and put the 17 and 18 (cathode pins for row 1) to ground. The sketch I run on this just tells the corresponding pins to go HIGH... LEDs don't blink (and don't go on).
Can somebody please point me in right direction?
I know people are using LED drivers from Maxim for that, but I don't have those and no way I will be able to get them, given the amount of time I hve to finish the projects. So can I get away with 74hc595s?? Or just Arduinos (I have several Arduinos at my disposal, so I can run several matrixes of them).
I honestly googled this matter, but the answers I found didn't quite help, so I am going to forum for an advice.