I wonder if it is possible to make a fullsize PCB with per-key RGB, using
WS2812B 3528 led ?
from what I found online, each led would consume up to 30mA (at maximum brightness), fullsize PCB would have over 100 led that mean 30 * 100 = 3000mA. the USB port can only provide about 500 ~ 900 mA (am I right?) => so there is not enough power.
let say I reduce the brightness of each led to half, meaning I still need 1500mA, still far from what USB port can provide.
is there anyways to make this work?
I’m no electrical engineer so I may have misunderstand something… pardon me