AtomSoft
Well-Known Member
Hey guys i know im a huge pain. I was going to use a ULN2803 for driving my LED Matrix but noticed i cant use it for the Column Driver without using another IC to invert it. I wanted to know if i can simply use a 4017 to drive each LED Column directly im using 270 OHM resistors and plan on using 5v supply... so thats a max of:
130mA per column but remember since it will never be a solid on its actually going to be less since its basically strobbing. The column is ANODE and the ROW are CATHODE.
130mA per column but remember since it will never be a solid on its actually going to be less since its basically strobbing. The column is ANODE and the ROW are CATHODE.