Hello there, I am about to start a new project, with a lot of LEDs.
I would like to use an Esp8266 as the controller, as it conveniently has wifi built in. Now, to supply the project, I got a 5v 20w supply, which should be plenty. However, the Esp only supports 5v power in over USB, and what I am wondering now is, how I can wire up the usb port, so I can power the project of the power supply, and connect a computer to the USB port. Could I just wire the data pins of the USB port to a USB plug, and connect the power pins to the supply?
I think the question is unnecessary anyway, but anyway:
I want to control a LED chain equipped with WS2811 ICs, so the power from the usb would simply not be enough. It will be about 20w. Now I got myself a 20w 5v PSU, so I can power the project via this. However, I thought I would have to provide the power through the USB port on the board.
My question would have been how to do this. But I found out, I can simply connect the power to the vin pin, and the board will be able to accept it. The LED chain will recieve power directly from the supply.
javamaster10000:
The model of board I am using is an esp8622.
I very much doubt that! Read what you wrote!
You probably mean a WeMOS D1 Mini.
OK, so you provide 5 V and ground to the LED strip and ground, also in parallel to the ESP board on the 5 V "Vin". Keep all wiring from one part to the other bundled together.
You are going to have problems with the logic levels to the addressable LEDs. You want a 74HCT14 - two of the six gates cascaded (and the other four with their inputs grounded unless you have other uses for them) to deliver proper 5 V logic levels to the LED strip.
