I was planing on using a Raspberry PI Zero W for å smart lamp project with WS2812b LEDs, to avoid separate power supply for the LEDs, my plan was to power the LEDs from +5VDC on the RPI ZW. The lamp is going to have 18 WS2812b leds, so total power consumption is going to be 1080mA(*) at full brightness.
I have read that the RPI has a fuse at 750mA @ +5VDC, so the question is, can I power opp 540mA @ +5VDC with LEDs from the RPI? I do not need USB ports or anything else than 1 I/O-port to data for WS2812b and WiFi connection.
(*) Corrected my math mistake from 540mA to 1080mA
I have decided to only use 16 WS2812b LEDs and by software set it to half brightness (128,128,128) so the maximum current only is 480mA.