I'm trying to make an LED strip that I bought off Amazon work with my Raspberry Pi. It works just fine when I connect it through the included adapter which I took apart (shown below):
However, it is a bit cumbersome, so I am trying to connect it through my raspberry Pi instead. From what I could gather, the two big chips are the ones that control the input from the user to control patterns, PWM, varying brightnesses, etc. Since my thing just needs to shine one of three colors, I think I don;'t need them. From what I researched, the three little microchips next to the RGB wires are MOSFETs. I googled tham and found some that could fit on my breadboard, and made sure they were the same logic voltage, the same junction type, etc, etc.
However, when I actually try to actuate everything, including the 12V power supply fed directly into the common line combined with the MOSFET regulated pulse, something weird happens. The lights light up, but with nowehere near the intensity as they do with the PCB it came with. I'm wondering, is tehre something I'm missing? Are the MOSFETs the wrong type?