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Hi there!
Firstly I'd just like to thank you for all your help towards us fellow makers/tinkerers!
so, I have followed this tutorial: https://learn.adafruit.com/neotrellis-neopixel-controller/overview to create a remote controller for neopixels,
My aim is to apply this controller to trigger various fire effects replacing some of the pre-set effects already in the reciever code such as rainbow fade ( which I am currently trying to replace with fire2012 https://github.com/FastLED/FastLED/blob/master/examples/Fire2012/Fire2012.ino)
I have managed ( with some help) to achieve this, however it only works on the first LED on a strip of 60, if any one can please help me with some advice as to overcome this problem it would be hugely appreciated :) my code is as follows :
#include <FastLED.h>
#define FRAMES_PER_SECOND 30 // %%%%%%%%%%%%%%%%%% best guess for this
#define LED_PIN 12
#define NUM_LEDS 60
#define LED_TYPE WS2812B
#define COLOR_ORDER GRB
#define COOLING 55
#define SPARKING 120
CRGBArray<NUM_LEDS> leds;
#include <SPI.h>
#include <RH_RF69.h>
#include <Wire.h>
#define LED 13
/******* NeoPixel Setup *******/
#define UPDATES_PER_SECOND 100
CRGBPalette16 currentPalette( CRGB::Black);
CRGBPalette16 targetPalette( PartyColors_p );
TBlendType currentBlending;
int SPEEDO = 25;
int STEPS = 20;
int HUE = 200; // starting color
int SATURATION = 255;
int BRIGHTNESS = 200;
int glitter = 0;
/****** Radio Setup ************/
// Change to 434.0 or other frequency, must match RX's freq!
#define RF69_FREQ 915.0
#if defined (__AVR_ATmega32U4__) // Feather 32u4 w/Radio
#define RFM69_CS 8
#define RFM69_INT 7
#define RFM69_RST 4
#endif
#if defined(ARDUINO_SAMD_FEATHER_M0) // Feather M0 w/Radio
#define RFM69_CS 8
#define RFM69_INT 3
#define RFM69_RST 4
#endif
#if defined (__AVR_ATmega328P__) // Feather 328P w/wing
#define RFM69_INT 3 //
#define RFM69_CS 4 //
#define RFM69_RST 2 // "A"
#endif
#if defined(ESP32) // ESP32 feather w/wing
#define RFM69_RST 13 // same as LED
#define RFM69_CS 33 // "B"
#define RFM69_INT 27 // "A"
#endif
// Singleton instance of the radio driver
RH_RF69 rf69(RFM69_CS, RFM69_INT);
bool oldState = HIGH;
void setup()
{
delay( 3000 ); // power-up safety delay
FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
FastLED.setBrightness( BRIGHTNESS );
pinMode(LED, OUTPUT);
pinMode(RFM69_RST, OUTPUT);
digitalWrite(RFM69_RST, LOW);
Serial.println("Feather RFM69 RX/TX Test!");
// manual reset
digitalWrite(RFM69_RST, HIGH);
delay(10);
digitalWrite(RFM69_RST, LOW);
delay(10);
if (!rf69.init())
{
Serial.println("RFM69 radio init failed");
while (1);
}
Serial.println("RFM69 radio init OK!");
// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM (for low power module)
// No encryption
if (!rf69.setFrequency(RF69_FREQ))
{
Serial.println("setFrequency failed");
}
// If you are using a high power RF69 eg RFM69HW, you *must* set a Tx power with the
// ishighpowermodule flag set like this:
rf69.setTxPower(14, true);
// The encryption key has to be the same as the one in the server
uint8_t key[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
};
rf69.setEncryptionKey(key);
pinMode(LED, OUTPUT);
Serial.print("RFM69 radio @"); Serial.print((int)RF69_FREQ); Serial.println(" MHz");
delay(500);
Gradient(); //So the lights come un upon startup, even if the trigger box is off
}
void loop()
{
if (rf69.waitAvailableTimeout(1000))
{
// Should be a message for us now
uint8_t buf[RH_RF69_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (! rf69.recv(buf, &len))
{
Serial.println("Receive failed");
return;
}
//digitalWrite(LED, HIGH);
//rf69.printBuffer("Received: ", buf, len);
//buf[len] = 0;
//Serial.print("Got: "); Serial.println((char*)buf);
//Serial.print("RSSI: "); Serial.println(rf69.lastRssi(), DEC);
char radiopacket[20] = "Button #";//prep reply message to send
if (buf[0] == 'A') //the letter sent from the button
{
ledMode(0);
radiopacket[8] = 'A';
}
else if (buf[0] == 'B') //the letter sent from the button
{
ledMode(1);
radiopacket[8] = 'B';
}
else if (buf[0] == 'C') //the letter sent from the button
{
ledMode(2);
radiopacket[8] = 'C';
}
else if (buf[0] == 'D') //the letter sent from the button
{
ledMode(3);
radiopacket[8] = 'D';
}
else if (buf[0] == 'E') //the letter sent from the button
{
ledMode(4);
radiopacket[8] = 'E';
}
else if (buf[0] == 'F') //the letter sent from the button
{
ledMode(5);
radiopacket[8] = 'F';
}
else if (buf[0] == 'G') //the letter sent from the button
{
ledMode(6);
radiopacket[8] = 'G';
}
else if (buf[0] == 'H') //the letter sent from the button
{
ledMode(7);
radiopacket[8] = 'H';
}
else if (buf[0] == 'I') //the letter sent from the button
{
ledMode(8);
radiopacket[8] = 'I';
}
else if (buf[0] == 'J') //the letter sent from the button
{
ledMode(9);
radiopacket[8] = 'J';
}
else if (buf[0] == 'K') //the letter sent from the button
{
ledMode(10);
radiopacket[8] = 'K';
}
else if (buf[0] == 'L') //the letter sent from the button
{
ledMode(11);
radiopacket[8] = 'L';
}
else if (buf[0] == 'M') //the letter sent from the button
{
ledMode(12);
radiopacket[8] = 'M';
}
else if (buf[0] == 'N') //the letter sent from the button
{
ledMode(13);
radiopacket[8] = 'N';
}
else if (buf[0] == 'O') //the letter sent from the button
{
ledMode(14);
radiopacket[8] = 'O';
}
else if (buf[0] == 'P') //the letter sent from the button
{
ledMode(15);
radiopacket[8] = 'P';
}
else if (buf[0] == 'Q') //the letter sent from the button
{
ledMode(16);
radiopacket[8] = 'Q';
}
else if (buf[0] == 'R') //the letter sent from the button
{
ledMode(17);
radiopacket[8] = 'R';
}
else if (buf[0] == 'S') //the letter sent from the button
{
ledMode(18);
radiopacket[8] = 'S';
}
else if (buf[0] == 'T') //the letter sent from the button
{
ledMode(19);
radiopacket[8] = 'T';
}
else if (buf[0] == 'Z') //the letter sent from the button
{
ledMode(20);
radiopacket[8] = 'Z';
}
/* radiopacket[9] = 0;
Serial.print("Sending "); Serial.println(radiopacket);
rf69.send((uint8_t *)radiopacket, strlen(radiopacket));
rf69.waitPacketSent(); */
digitalWrite(LED, LOW);
}
}
void ledMode(int i)
{
switch (i)
{
//&&&&&&&&&&&&&& added curly bracket (CB)
case 0: HUE = 0; SATURATION = 255; BRIGHTNESS = 200; Solid(); // red
break;
case 1: HUE = 40; SATURATION = 255; BRIGHTNESS = 200; Solid(); // gold
break;
case 2: HUE = 100; SATURATION = 255; BRIGHTNESS = 200; Solid(); // green
break;
case 3: HUE = 140; SATURATION = 255; BRIGHTNESS = 200; Solid(); // Blue
break;
case 4: HUE = 180; SATURATION = 255; BRIGHTNESS = 200; Solid(); // purple
break;
case 5: HUE = 220; SATURATION = 255; BRIGHTNESS = 200; Solid(); // pink
break;
case 6: HUE = 0; SATURATION = 0; BRIGHTNESS = 200; Solid(); // white
break;
case 7: HUE = 0; BRIGHTNESS = 0; Solid(); // off
break;
case 8: HUE = 0; SATURATION = 255; BRIGHTNESS = 200; Gradient(); // red
break;
case 9: HUE = 40; SATURATION = 255; BRIGHTNESS = 200; Gradient(); // gold
break;
case 10: HUE = 100; SATURATION = 255; BRIGHTNESS = 200; Gradient(); // green
break;
case 11: HUE = 140; SATURATION = 255; BRIGHTNESS = 200; Gradient(); // blue
break;
case 12: HUE = 180; SATURATION = 255; BRIGHTNESS = 200; Gradient(); // purple
break;
case 13: HUE = 220; SATURATION = 255; BRIGHTNESS = 200; Gradient(); // pink
break;
case 14: HUE = 160; SATURATION = 50; BRIGHTNESS = 200; Gradient(); // white
break;
case 15: SATURATION = 255; BRIGHTNESS = 200; Rainbow_Fade(); // rainbow fade
break;
case 16: STEPS = 4; SATURATION = 255; BRIGHTNESS = 200; Rainbow(); //rainbow 2
break;
case 17: STEPS = 20; BRIGHTNESS = 200; SATURATION = 255; Rainbow(); // rainbow 3
break;
case 20: BRIGHTNESS = 200;
break;
}
}
// GRADIENT --------------------------------------------------------------
void Gradient()
{
SetupGradientPalette();
// &&&&&&&&&&&&&&&&&&&&& removed CB
static uint8_t startIndex = 0;
startIndex = startIndex + 1; // motion speed
FillLEDsFromPaletteColors( startIndex);
FastLED.show();
FastLED.delay(SPEEDO);
}
// SOLID ----------------------------------------------------
void Solid()
{
fill_solid(leds, NUM_LEDS, CHSV(HUE, SATURATION, BRIGHTNESS));
FastLED.show();
delay(20);
}
// RAINBOW --------------------------------------------------
void Rainbow()
{
FastLED.setBrightness( BRIGHTNESS );
currentPalette = RainbowColors_p;
static uint8_t startIndex = 0;
startIndex = startIndex + 1;
FillLEDsFromPaletteColors( startIndex);
FastLED.show();
FastLED.delay(SPEEDO);
}
// RAINBOW FADE --------------------------------------------------
void Rainbow_Fade() //-m2-FADE ALL LEDS THROUGH HSV RAINBOW
{
// Array of temperature readings at each simulation cell
static byte heat[NUM_LEDS]; // $$$$$$$$$$$$$$$$$$$$$$$$$ missinf semi-colon
// Step 1. Cool down every cell a little
for ( int i = 0; i < NUM_LEDS; i++)
{
heat = qsub8( heat, random8(0, ((COOLING * 10) / NUM_LEDS) + 2));
}
// Step 2. Heat from each cell drifts 'up' and diffuses a little
for ( int k = NUM_LEDS - 1; k >= 2; k--)
{
heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2] ) / 3;
}
// Step 3. Randomly ignite new 'sparks' of heat near the bottom
if ( random8() < SPARKING )
{
int y = random8(7);
heat[y] = qadd8( heat[y], random8(160, 255) );
}
// Step 4. Map from heat cells to LED colors
for ( int j = 0; j < NUM_LEDS; j++)
{
CRGB color = HeatColor( heat[j]);
int pixelnumber;
// ^^^^^^^^^^^^^^^^ I don't know where gReverseDirection is supposed to be declared or where it
// is to get its value so had to comment this part out
/*if ( gReverseDirection ) // &&&&&&&&&&&&&&&&&& is not declared anywhere
{
pixelnumber = (NUM_LEDS - 1) - j;
}
else
{
pixelnumber = j;
}*/
leds[pixelnumber] = color;
FastLED.show(); // display this frame
FastLED.delay(1000 / FRAMES_PER_SECOND);
}
} // ^^^^^^^^^^^^^^^^^^^^^^^^ added CB
void SetupGradientPalette()
{
CRGB light = CHSV( HUE + 25, SATURATION - 20, BRIGHTNESS);
CRGB dark = CHSV( HUE, SATURATION - 15, BRIGHTNESS);
CRGB medium = CHSV ( HUE - 25, SATURATION, BRIGHTNESS);
currentPalette = CRGBPalette16(
light, light, light, light,
medium, medium, medium, medium,
dark, dark, dark, dark,
medium, medium, medium, medium );
}
void FillLEDsFromPaletteColors( uint8_t colorIndex)
{
uint8_t brightness = BRIGHTNESS;
for ( int i = 0; i < NUM_LEDS; i++)
{
leds = ColorFromPalette( currentPalette, colorIndex, brightness, currentBlending);
colorIndex += STEPS;
}
}
Hi beautownshend,
quite a large sketch - it took me a while to read through 
So when you start this Sketch, what do you see? Just the 1st LED lights up?
What happens if you add
while(1);
after the
Gradient(); //So the lights come un upon startup, even if the trigger box is off
line in setup()?
Also note: You're using quite a few Global variables.
I think it's good practice to avoid this as much as possible, but that doesn't mean it won't work - it just can cause confusing moments 
