Help me please

[miao084]

Arduino: 1.8.5 (Mac OS X), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

In file included from /Users/buikhanh/Documents/Arduino/libraries/WS2812FX/WS2812FX.h:40:0, from /Users/buikhanh/Documents/Arduino/libraries/WS2812FX/WS2812FX.cpp:54: /Users/buikhanh/Documents/Arduino/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.h: In member function 'void WS2812FX::setLength(uint16_t)': /Users/buikhanh/Documents/Arduino/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.h:159:5: error: 'uint16_t Adafruit_NeoPixel::numLEDs' is private numLEDs, // Number of RGB LEDs in strip ^ /Users/buikhanh/Documents/Arduino/libraries/WS2812FX/WS2812FX.cpp:154:31: error: within this context } while(!Adafruit_NeoPixel::numLEDs && b > 1); ^ In file included from /Users/buikhanh/Documents/Arduino/libraries/WS2812FX/WS2812FX.h:40:0, from /Users/buikhanh/Documents/Arduino/libraries/WS2812FX/WS2812FX.cpp:54: /Users/buikhanh/Documents/Arduino/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.h:159:5: error: 'uint16_t Adafruit_NeoPixel::numLEDs' is private numLEDs, // Number of RGB LEDs in strip ^ /Users/buikhanh/Documents/Arduino/libraries/WS2812FX/WS2812FX.cpp:157:42: error: within this context _segments[0].stop = Adafruit_NeoPixel::numLEDs - 1; ^ exit status 1 Error compiling for board Arduino/Genuino Mega or Mega 2560.

This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.

[moose4lord]

I compiled a small demo sketch for the "Arduino/Genuino Mega or Mega 2560" with no errors. What's your sketch look like?

[miao084]

my sketch: auto_mode_cycle in examples Previously I used the old ws2812fx works fine. but when updating the new version then I can not compile any examples

[moose4lord]

Hmmm, I'm not having any trouble compiling that example, although I'm on a Windows box and you seem to be on a Mac. Still, it doesn't seem like it's a Mac issue. It kind of looks like your Adafruit_NeoPixel library is old or corrupted. I would try reinstalling the latest version of Adafruit_NeoPixel in your libraries folder and see if that helps. https://github.com/adafruit/Adafruit_NeoPixel. You could also try to compile one of the Adafruit_NeoPixel examples to see if it's a WS2812FX issue or an Adafruit_NeoPixel issue.

Other then that, without being able to reproduce the problem, I'm afraid I can't be much help. Sorry.

[miao084]

Thanks you very much I have updated adafruit and compiled it successfully, but the problem is not fixed speed is always by default run fast. Examples with arduino

[moose4lord]

You're right, most of the example sketches have not been updated to accommodate the new speed code. The examples typically set speed=200 by default, which runs the animations very fast. Change the default speed to 1000 and you should see better results.

ws2812fx.setSpeed(1000);

Remember, larger speed values make the animations run slower.