Also new to the group,
I have some MCM 25-7526 addressable LEDs. Seem very similar to other 3 wire LEDs but the timings are different. I assume it should be easy to modify timings in the C code to suit but have no idea what I should tweek and in which file.
Can anyone advise?
Thanks
Don’t assume anything. 
You can start by looking at this file though.
https://github.com/FastLED/FastLED/blob/master/chipsets.h
Yes, I should have said hope rather than assume. I did see the chipsets.h file but can’t find the clockless.h file that might help me see how the three timing numbers relate to data sheet timings for various LEDs. Any idea where that file is or how those three timing numbers relate to the data sheet timings?
Finally found the clockless.h file but can’t make sense of how the T1,T2,T3 values relate to datasheet values of T0H, T0L, T1H, T1L. I looked at ws2811 data sheet and clockless.h values for that LED and can’t see how they relate. The data sheet has T0H=0.5us, T0L=2.0us, T1H=1.2us and T1L=1.3us so bit time of 2.5us or 400kHz (?). The clockless.h entry for ws2811 at 400khz has T1=800, T2=800 and T3=900 (ns) and describes these as
“Base template for clockless controllers. These controllers have 3 control points in their cycle for each bit. The first point is where the line is raised hi. The second point is where the line is dropped low for a zero. The third point is where the line is dropped low for a one. T1, T2, and T3 correspond to the timings for those three in clock cycles.”
From my reading of the data sheet the line is raise high at zero time so that makes T1 an uninformative zero.
I’m missing something but can’t work out what.
The WS2811 settings work for these LEDs. Impressed with what others are doing so I have ordered some better LED strips to play with.