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@illegalmexican sorry for the radio silence! Were you able to get it working? The fan that we were using was the Cloudline Lite A6, which has a non-removable USB-C cable that is supposed to plug into an accompanying controller. We ended up getting the wrong adapter (the molex to male USB-C), so...

@illegalmexican what does your code look like? One way to test out if the MOSFET is defective would be to connect the signal/PWM pin of the MOSFET module to the 3.3V pin on the ESP32 board (i.e., pull that pin HIGH). If the LED turns on, that means your code is not controlling that pin (looks...

Hey everyone, been lurking for a few weeks. It looks like there's an ongoing debate about whether to use power MOSFETs, opto-isolators, or a combination of both. I thought I would contribute to the discussion. My background is in engineering, but I'm not a pro EE, so please take my advice with...