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FastLed library not compiling on the new Arduino Uno Wifi Rev. 2 #716

PMPoulsen opened this Issue Jan 9, 2019 · 3 comments


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PMPoulsen commented Jan 9, 2019

I have used one of the examples from the library and tried to compile it to my new Arduino wifi rev. 2 board,but I get the following error message:

Arduino: 1.8.8 (Windows 10), Board: "Arduino Uno WiFi Rev2, ATMEGA328"

In file included from C:\Arduino Projects\libraries\FastLED\examples\ColorPalette\ColorPalette.ino:1:0:

C:\Arduino Projects\libraries\FastLED/FastLED.h:14:21: note: #pragma message: FastLED version 3.002.001

pragma message "FastLED version 3.002.001"


In file included from C:\Arduino Projects\libraries\FastLED/FastLED.h:65:0,

             from C:\Arduino Projects\libraries\FastLED\examples\ColorPalette\ColorPalette.ino:1:

C:\Arduino Projects\libraries\FastLED/fastspi.h:110:23: note: #pragma message: No hardware SPI pins defined. All SPI access will default to bitbanged output

pragma message "No hardware SPI pins defined. All SPI access will default to bitbanged output"


In file included from C:\Arduino Projects\libraries\FastLED/FastLED.h:48:0,

             from C:\Arduino Projects\libraries\FastLED\examples\ColorPalette\ColorPalette.ino:1:

C:\Arduino Projects\libraries\FastLED/fastpin.h: In instantiation of 'class FastPin<5u>':

C:\Arduino Projects\libraries\FastLED/platforms/avr/clockless_trinket.h:96:49: required from 'class ClocklessController<5u, 6, 8, 6, (EOrder)66u, 0, false, 10>'

C:\Arduino Projects\libraries\FastLED/chipsets.h:385:7: required from 'class WS2811Controller800Khz<5u, (EOrder)66u>'

C:\Arduino Projects\libraries\FastLED/FastLED.h:108:52: required from 'class WS2811<5u, (EOrder)66u>'

C:\Arduino Projects\libraries\FastLED/FastLED.h:295:39: required from 'static CLEDController& CFastLED::addLeds(CRGB*, int, int) [with CHIPSET = WS2811; unsigned char DATA_PIN = 5u; EOrder RGB_ORDER = (EOrder)66u]'

C:\Arduino Projects\libraries\FastLED\examples\ColorPalette\ColorPalette.ino:40:67: required from here

C:\Arduino Projects\libraries\FastLED/fastpin.h:207:2: error: static assertion failed: Invalid pin specified

static_assert(validpin(), "Invalid pin specified");


exit status 1
Error compiling for board Arduino Uno WiFi Rev2.

I understand that the new Wifi Rev. 2 board uses a different chip hence the pinout may not have been defined in the library yet.

Are there any simple workarrounds for this issue?


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focalintent commented Jan 9, 2019

Nothing simple, no - at the very least there need to be pin definitions setup in fastpin_avr.h - and that’s assuming there’s no major differences between the atmega4809 and the 32u4/328.


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PMPoulsen commented Jan 9, 2019

OK, that is beyond my skills, so I am hoping for an update to the library soon.


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scr34m88 commented Jan 16, 2019

I've got the same problem. I hope you'll update the library soon.

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