Issue with NodeMCU ESP8266 wifi signal
Posted: Tue Jul 28, 2020 10:53 am
Hello. I'm working on my first project to program an LED strip with the NodeMCU ESP8266. I've got it working just fine for the most part. However, I'm attempting to change the light patterns with a web interface hosted from the ESP8266. I've got the code loaded to host the page and it comes up fine, sometimes. I've noticed that when I have the board attached to my PC (via USB) and with a 5v power supply at the same time, the wifi connects with no issues. When I'm done working with the code and attempt to run it standalone, the wifi has a lot of difficulty connecting. It takes a while to connect initially and when it finally does and I bring up the HTML page, the wifi cuts out and goes down. Very hit and miss (mostly miss). I suspect that the board doesn't have enough power to transmit the wifi signal since it seems to work fine when attached to both the PC and the 5v supply. Can anyone please confirm this? If so, what can be done to help this out? I figured a 5v supply would be plenty (both board and LED strip say to not use more than this), but perhaps if the board and the LED strip are sharing it, then that might be an issue? I've attached an image of how I have this wired up. Any help would be greatly appreciated! Thanks!