fastLED library not working on photon

Firmware Libraries
1

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#Here is code I’m using:

//================================================

#include "FastLED.h"

#define LED_COUNT 15
#define LED_PIN 12

struct CRGB leds[LED_COUNT];

//================================================

uint8_t hue = 32;
byte idex = 255;
byte meteorLength = 29;

void setup() {
  // sanity check delay - allows reprogramming if accidently blowing power w/leds
   	delay(2000);
  LEDS.addLeds<WS2812, LED_PIN, GRB>(leds, LED_COUNT);
  LEDS.setBrightness(200);
}

void loop(){
 meteorShower(); 
}

void meteorShower(){
  // slide all the pixels down one in the array
  memmove8( &leds[1], &leds[0], (LED_COUNT - 1) * 3 );
 
 // increment the meteor display frame
  idex++;

  // make sure we don't drift into space
  if ( idex > meteorLength ) {
    idex = 0;
    // cycle through hues in each successive meteor tail
    hue += 32;  
  }

  // this switch controls the actual meteor animation, i.e., what gets placed in the
  // first position and then subsequently gets moved down the strip by the memmove above
  switch ( idex ) {
  case 0:
    leds[0] = CRGB(200,200,200); 
    break;
  case 1:
    leds[0] = CHSV((hue - 20), 255, 210); 
    break;
  case 2:
    leds[0] = CHSV((hue - 22), 255, 180); 
    break;
  case 3:
    leds[0] = CHSV((hue - 23), 255, 150); 
    break;
  case 4:
    leds[0] = CHSV((hue - 24), 255, 110); 
    break;
  case 5:
    leds[0] = CHSV((hue - 25), 255, 90); 
    break;
  case 6:
    leds[0] = CHSV((hue - 26), 160, 60); 
    break;
  case 7:
    leds[0] = CHSV((hue - 27), 140, 40); 
    break;
  case 8:
    leds[0] = CHSV((hue - 28), 120, 20); 
    break;
  case 9:
    leds[0] = CHSV((hue - 29), 100, 20); 
    break;
  default:
    leds[0] = CRGB::Black; 
  }

  // show the blinky
  FastLED.show();  
  // control the animation speed/frame rate
  delay(30);
}

#Here is the error I get when verifying:

Processing  meteorshower.ino
Checking library FastLED...
Checking library FastLED2...
Checking library neopixel...
Installing library neopixel 0.0.13 to lib/neopixel ...
Library neopixel 0.0.13 installed.
Installing library FastLED2 3.1.8 to lib/FastLED2 ...
Library FastLED2 3.1.8 installed.
Installing library FastLED 3.1.5 to lib/FastLED ...
Library FastLED 3.1.5 installed.
make -C ../modules/photon/user-part all
make[1]: Entering directory '/firmware/modules/photon/user-part'
make -C ../../../user 
make[2]: Entering directory '/firmware/user'
Building cpp file: src/meteorshower.cpp
Invoking: ARM GCC CPP Compiler
mkdir -p ../build/target/user/platform-6-msrc/
arm-none-eabi-gcc -DSTM32_DEVICE -DSTM32F2XX -DPLATFORM_THREADING=1 -DPLATFORM_ID=6 -DPLATFORM_NAME=photon -DUSBD_VID_SPARK=0x2B04 -DUSBD_PID_DFU=0xD006 -DUSBD_PID_CDC=0xC006 -DSPARK_PLATFORM -g3 -gdwarf-2 -Os -mcpu=cortex-m3 -mthumb -DINCLUDE_PLATFORM=1 -DPRODUCT_ID=6 -DPRODUCT_FIRMWARE_VERSION=65535 -DUSE_STDPERIPH_DRIVER -DDFU_BUILD_ENABLE -DSYSTEM_VERSION_STRING=0.6.2 -DRELEASE_BUILD -I./inc -I../wiring/inc -I../system/inc -I../services/inc -I../communication/src -I../hal/inc -I../hal/shared -I../hal/src/photon -I../hal/src/stm32f2xx -I../hal/src/stm32 -I../hal/src/photon/api -I../platform/shared/inc -I../platform/MCU/STM32F2xx/STM32_USB_Host_Driver/inc -I../platform/MCU/STM32F2xx/STM32_StdPeriph_Driver/inc -I../platform/MCU/STM32F2xx/STM32_USB_OTG_Driver/inc -I../platform/MCU/STM32F2xx/STM32_USB_Device_Driver/inc -I../platform/MCU/STM32F2xx/SPARK_Firmware_Driver/inc -I../platform/MCU/shared/STM32/inc -I../platform/MCU/STM32F2xx/CMSIS/Include -I../platform/MCU/STM32F2xx/CMSIS/Device/ST/Include -I../dynalib/inc -Isrc -I./libraries -Isrc -Isrc -Isrc -Isrc -Ilib/FastLED/src -Ilib/FastLED2/src -Ilib/neopixel/src -I. -MD -MP -MF ../build/target/user/platform-6-msrc/meteorshower.o.d -ffunction-sections -fdata-sections -Wall -Wno-switch -Wno-error=deprecated-declarations -fmessage-length=0 -fno-strict-aliasing -DSPARK=1 -DPARTICLE=1 -DSTART_DFU_FLASHER_SERIAL_SPEED=14400 -DSTART_YMODEM_FLASHER_SERIAL_SPEED=28800 -DSPARK_PLATFORM_NET=BCM9WCDUSI09 -fno-builtin-malloc -fno-builtin-free -fno-builtin-realloc  -DLOG_INCLUDE_SOURCE_INFO=1 -DPARTICLE_USER_MODULE -DUSE_THREADING=0 -DUSE_SPI=SPI -DUSE_CS=A2 -DUSE_SPI=SPI -DUSE_CS=A2 -DUSE_THREADING=0 -DUSER_FIRMWARE_IMAGE_SIZE=0x20000 -DUSER_FIRMWARE_IMAGE_LOCATION=0x80A0000 -DMODULAR_FIRMWARE=1 -DMODULE_VERSION=4 -DMODULE_FUNCTION=5 -DMODULE_INDEX=1 -DMODULE_DEPENDENCY=4,2,108 -D_WINSOCK_H -D_GNU_SOURCE -DLOG_MODULE_CATEGORY="\"app\""  -fno-exceptions -fno-rtti -fcheck-new -std=gnu++11 -c -o ../build/target/user/platform-6-msrc/meteorshower.o src/meteorshower.cpp
In file included from meteorshower.ino:15:0:
lib/FastLED/src/FastLED.h:12:2: warning: #warning FastLED version 3001000 (Not really a warning, just telling you here.) [-Wcpp]
 #warning FastLED version 3001000  (Not really a warning, just telling you here.)
  ^
meteorshower.ino:5:27: error: elements of array 'CRGB leds [15]' have incomplete type
meteorshower.ino:5:27: error: storage size of 'leds' isn't known
In file included from meteorshower.ino:15:0:
meteorshower.ino: In function 'void setup()':
lib/FastLED/src/FastLED.h:457:14: error: 'FastLED' was not declared in this scope
 #define LEDS FastLED
              ^
meteorshower.ino:25:3: note: in expansion of macro 'LEDS'
lib/FastLED/src/FastLED.h:457:14: note: suggested alternative:
 #define LEDS FastLED
              ^
meteorshower.ino:25:3: note: in expansion of macro 'LEDS'
lib/FastLED/src/FastLED.h:460:17: note:   'NSFastLED::FastLED'
 extern CFastLED FastLED;
                 ^
meteorshower.ino:25:16: error: 'WS2812' was not declared in this scope
meteorshower.ino:25:16: note: suggested alternative:
In file included from meteorshower.ino:15:0:
lib/FastLED/src/FastLED.h:79:52: note:   'NSFastLED::WS2812'
 template<uint8_t DATA_PIN, EOrder RGB_ORDER> class WS2812 : public WS2812Controller800Khz<DATA_PIN, RGB_ORDER> {};
                                                    ^
meteorshower.ino:25:33: error: 'GRB' was not declared in this scope
meteorshower.ino:25:33: note: suggested alternative:
In file included from lib/FastLED/src/controller.h:5:0,
                 from lib/FastLED/src/FastLED.h:37,
                 from meteorshower.ino:15:
lib/FastLED/src/pixeltypes.h:810:2: note:   'GRB'
  GRB=0102,
  ^
meteorshower.ino: In function 'void loop()':
meteorshower.ino:35:15: error: 'meteorShower' was not declared in this scope
meteorshower.ino: In function 'void meteorShower()':
meteorshower.ino:75:31: error: invalid use of incomplete type 'struct CRGB'
meteorshower.ino:5:8: error: forward declaration of 'struct CRGB'
meteorshower.ino:81:40: error: 'CHSV' was not declared in this scope
meteorshower.ino:81:40: note: suggested alternative:
In file included from lib/FastLED/src/controller.h:5:0,
                 from lib/FastLED/src/FastLED.h:37,
                 from meteorshower.ino:15:
lib/FastLED/src/pixeltypes.h:18:8: note:   'NSFastLED::CHSV'
 struct CHSV {
        ^
meteorshower.ino:135:15: error: incomplete type 'CRGB' used in nested name specifier
meteorshower.ino:143:3: error: 'FastLED' was not declared in this scope
meteorshower.ino:143:3: note: suggested alternative:
In file included from meteorshower.ino:15:0:
lib/FastLED/src/FastLED.h:460:17: note:   'NSFastLED::FastLED'
 extern CFastLED FastLED;
                 ^
../build/module.mk:267: recipe for target '../build/target/user/platform-6-msrc/meteorshower.o' failed
make[2]: Leaving directory '/firmware/user'
make[2]: *** [../build/target/user/platform-6-msrc/meteorshower.o] Error 1
../../../build/recurse.mk:11: recipe for target 'user' failed
make[1]: Leaving directory '/firmware/modules/photon/user-part'
make[1]: *** [user] Error 2
../build/recurse.mk:11: recipe for target 'modules/photon/user-part' failed
make: *** [modules/photon/user-part] Error 2
2

Just add this line after the include statement

FASTLED_USING_NAMESPACE

And please use A2 instead of 12 for your #define LED_PIN

1 Like
3

THANK YOU!

Ah yes, I changed those variables. LED_COUNT is actually 144 and LED_PIN is actually D1

4

Thanks for the help!

5

@kkwak Here is a web page with code for quite a few different style of neo pixels display patterns that I ran across the other day.

2 Likes
6

@RWB Thanks! I came across these too. Unfortunately I just bought a bunch of RGBW strips which the FastLED library doesn’t seem to work on.

7

The code on that site works with the neopixels also, you just have to add their initial code to get the animations working. Took me a min to figure out.

8

@RWB I know it works for RGB neopixels but I don’t think the FastLED library supports RGBW neopixel strips yet