I would like to power ~100 LEDs from an WS2812 LED strip and an ESP8266 with my power supply of 5V / 5A.
I've read a lot of tutorials and advices but I'm still not 100% sur that all my assomptions are corrects.
The current regulator on the board ( AMS1117 ) does not accept more than 1A. And as the maximum current used from the ESP8266 is around 400mA there's only 600mA left if I want to power the board with the Vin PIN ? Is that right ?
Then I've calculated how many current my 100 LEDs would use. Things begin to be complicated landing on the WS2812 Datasheet
What's the difference between "Power supply voltage" and "Input Voltage" ? I assumed that thoses LEDs would work with 5V... Seems like it better should be 6~7V ? Does it mean that running with 5V the light are less bright (I mean even theorically ! I want to understand even though 1V won't be noticable in pratice) ?
Vdd is now 4.5~5.5V as an assumption ! What is Vdd ?
Let's do the math with 18.5mA As mentioned they are 3 LEDs by units so it's 20x3 = 60mA each ... The project would then use 18.5x100 = 1.850A 60x100 = 6A
Which is higher than the 1A of the AMS1117 regulator.
So, the idea is to power the ESP82 on Vcc. But how should I drop the current from 5 to 3,3V
Does thoses little boards should be used as the "voltage dropper" in the schematic ?
Thanks a lot and don't hesitate to point my errors in my reflexion.