I come to you because I'm kind of new to electronics ( i'm a french engineering school student ) and I need some advice on my project : being able to display, thanks to rgb led strings, "pixel art-ish" images.
It has already been done a lot of times but there is something I quite don't understand:
I kind of get ( please correct me if I'm wrong ) that a driver's goal is to make sure a Led is getting the right amount of electricity but also it has to do with the number of devices (here Leds) that the arduino can control via I²C bus.
What bothers me is that in this project, they are using something like 15*15 WS2812B Leds, ( the exact same as I'll probably work with ) without any driver.
Can it realistically work that way ?
How many Leds can a arduino Uno safely control via I²C bus ?
Thank you in advance for your answers =) .