Hi. I've upgraded my trusty old LPD8806 strips to APA102s.

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Hi. I’ve upgraded my trusty old LPD8806 strips to APA102s. The patterns look a bit weird, and the documentation said they may be running fast and to set up as follows:

FastLED.addLeds<APA102, RGB, DATA_RATE_MHZ(12)>(leds, NUM_LEDS);

However, when compiling it fails as ‘call of overloaded ‘addLeds(CRGB [289], int)’ is ambiguous’

What am I doing wrong? Thanks

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Incidentally, these are pretty hardy - At first I badly assumed that the wiring was the same as my LPD8806 and I was putting 5v through the wrong line and smoke was coming off the wires and it was hot to touch. They still work!!

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When supplying the data rate, you have to be explicit about the data/clock pin as well - you’re running into the limits of C++ template magic right now (I’ve got ideas on how to work around it - but doing any of them is unlikely in the near future)

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Thanks Daniel. So the documentation needs amending to reflect this. I was using SPI and don’t know how to say this unless I leave the data and clock pins off. Is there a way to use SPI and also set the speed?

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Look at the example here: https://github.com/FastLED/FastLED/wiki/SPI-Hardware-or-Bit-banging

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Also updated the other part of the docs (there was a time when you could do it that way but needed library changes undid that - thought I caught everywhere in the docs when that changed :slight_smile:

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Thanks Daniel.