I have the version that is pre-flashed with WLED, and it is successfully connected with the app while no LEDs are connected. Once I connect a string of WS2812B LEDs, it disconnects. Similarly, if I power it on with LEDs connected, the app will not connect. Any ideas on what's going wrong?

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LED Strip Controller disconnects when LEDs connected
LED Strip Controller disconnects when LEDs connected
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I have had this issue as well but with the HomeKit firmware. I think it has something to do with the voltage/current guard on the controller tripping because the voltage/current input or output is more than the controller is comfortable working with. But I am not sure and have no troubleshooting knowledge behind this or any answers – please don't ask me for help. I'm here for help as well.