I want to preface this by saying that I don't know much about how circuits or soldering or programming works at all. I've tried to myself all through various forms and youtube videos, but this is my first post here.
Right before summer, I bought an Arduino starter kit, a sparkfun spectrum board, and a ws2812b light strip with 300 leds on it. I followed a guide from callmekoko on youtube and github. I was able to solder the boards together, upload the code to the arduino, and I bought 2x 12v 2a 24w power supplies.
I hooked up one power supply to the light strip, and I plugged one into the arduino. I took the red, green, and white cables from the light strip, and made the appropriate connections with them on the board.
When plugging my phone in to play music, I was able to get the lights working and they flashes with music.
I ended up losing one of the power cables, so I let the whole thing sit over the summer until now, when I ordered another power supply of the same kind from Amazon.
I am now using the same set up that I was before, but when I power on the light strip, there are two different things happening. For one, the first 6 to 10 lights on strip will briefly light up, and then they will also blink with an incredibly dim blue light every few seconds.
Secondly, sometimes, none of the lights will turn on except for the 3rd light and the tenth light. One of them will stay a solid orange color, and one will stay a solid green color. Nothing else will happen, even when I make the connection of the light strip to the board.
I am not really sure what my issue is here, so I was hoping somebody could give me some ideas.
If you have any questions at all, let me know. I am sorry if this is confusing.