Hi, I bought an analog LED strip where I crashed the original controller and I thought to use it with the Analog strip controller, which I bought from Athom. But it looks like it is not achieving the voltage of 24V on the outputs although the power supply is 24V.
My LED strip has only 3 pins marked with X, Y, and Z. I figured out that the voltage between those pins defines the color of the strip, which is max 24V…there is no extra Vcc or Gnd.
Can anybody help how to ge this strip WLED controlled?
Mmmh…that’s a pity.
At least I get two colors out of it if I connect one channel to Vcc and the others to analog outputs configured as white PWM. But for all colors it seems to be necessary to get the 24V between the analog outputs…this seems not supported by the HW.
I assume the attached schematic (without the resistors). So I need something to set a valotage of 24V and ground on each line. Could be a h bridge something to accomplish that?
I know I could buy something which is supported…seem to be my sportmanship
Looks like there’s a set of MOSFETs on the original controller configured as a “3 phase bridge” to drive these LEDs (similar to the method used to drive 3 phase motors).
If you explore that setup you can get an idea of how to drive your strip.
In essence you activate one “phase” at a time very quickly and then move on to the next.
It’s a completely different protocol for lighting analog LED’s and you only get to set the colour(s) for the whole strip not individual pieces.
To further complicate the coding, you have to make sure there’s “dead time” between activating 2 different phases, or you risk turning on MOSFETs directly across the power supply (which won’t end well…)
You might look for Arduino based 3 phase motor controllers and go from there. I don’t see WLED as a good fit here (unless you want to do a usermod )
WLED uses this method already, but only supports 2-Wire CCT strips. In my testing the frequency was too high for using mosfets. Dead-time is added but too short as well. It does work with some cheap H-bridge motor drivers I tested.
The code could be modified to also work on this strip type, still need a driver though.
In theory yes, but I had no time (and no mood) to build it up. Basically you need some mosfets to change the voltage on each line individually to max positive and max negative. The critical thing is that you must prevent to active the p and the n mosfet at the same time → shortcut.
I’m not sure it is worth the time. Meanwhile I bought digital strips.
all you need to know to get you started is in the post from divsys.
if that makes no sense to you, research it. If that is too much hassle, leave it.
WLED does not support these.
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