Hello Guys and Girls!
I want to start my first real arduino project. I havnt chosen the easiest for my knowledge level but I think with a little of your help it should be possible ;-)
Well by idea is a 3D Pov display (rotating). Mainly there are two LED Matrix (8x8) on both sides of the PCB, and the whole board will rotate so that there is on all 360° the leds visible to create a real 3D image.
But to create a good effect even during not completely dark room I think only 5050 smd leds will have enough power to let it look clearer. 5050 smds have 3 led chips inside each with a total current of 60mA. The 9219 can handle max. 40 mA or so I read somewhere.
My main concern is, if it is possible to stick 3 of the 7219 in parralell to control each one led chip in the 5050. But they must be perfectly in sync to create no flickering during multiplexing if there is any interference - right?
I hope you can tell my what the best solution is. My first goal is a working setup showing a still standing image - I will use a Atmega328P popped out from an UNO to program. I will post some quick drawings for my idea later