Techatronic
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WS2811 with Arduino bluetooth control

Pixel light control using Arduino

IntermediateFull instructions provided542
WS2811 with Arduino bluetooth control

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
HC-05 Bluetooth Module
HC-05 Bluetooth Module
×1
NeoPixel Ring: WS2812 5050 RGB LED
Adafruit NeoPixel Ring: WS2812 5050 RGB LED
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

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Schematics

circuit

Code

code

C/C++
code for ws2811
#include <FastLED.h>

#define LED_PINA    13

#include <SoftwareSerial.h>

SoftwareSerial mySerial(4, 5); // RX, TX


#define NUM_LEDS  100

CRGB leds[NUM_LEDS];
void setup() {
  
   FastLED.addLeds<WS2812, LED_PINA, GRB>(leds, NUM_LEDS);

 
  mySerial.begin(9600);
Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:

int q;
  
if(mySerial.available()>0)

{
  char m = mySerial.read();
 Serial.println(m);
 
//  Serial.println(t);
  switch (m)
  {





// warm slowly pattern start here (RED)
    
  case 'A':
  while(1)
  {
if(mySerial.available()>0)
{  
break; }
 for(q=0; q<=90; q++){
    if(mySerial.available()>0)
{  
break; }
  for ( i = 0; i <=NUM_LEDS; i++ )
{   
  
  leds[i] = CRGB ( 255,0, 0);
    
  if(mySerial.available()>0)
{  
break; }}
FastLED.setBrightness(  q);
FastLED.show();
delay(d);  
 if(mySerial.available()>0)
{  
break; }
   }

   

for(q=90; q>=0; q--){
    if(mySerial.available()>0)
{  
break; }
  for ( i = 0; i <=NUM_LEDS; i++ )
{   
  
  leds[i] = CRGB ( 255,0, 0);
    
  if(mySerial.available()>0)
{  
break; }}
FastLED.setBrightness(  q);
FastLED.show();
delay(d);  
 if(mySerial.available()>0)
{  
break; }
   }



if(mySerial.available()>0)
{  
break; }

}



// warm slowly pattern end here (RED)

// warm slowly pattern start here (BLUE)




case 'B':
  while(1)
  {

 for(q=0; q<=90; q++){
    
  for ( i = 0; i <=NUM_LEDS; i++ )
{   
  
  leds[i] = CRGB ( 0,255, 0);
    
  }
FastLED.setBrightness(  q);
FastLED.show();
delay(d);  
 
   }

   

for(q=90; q>=0; q--){
    
  for ( i = 0; i <=NUM_LEDS; i++ )
{   
  
  leds[i] = CRGB ( 0,255, 0);
    
 }
FastLED.setBrightness(  q);
FastLED.show();
delay(d);  
 
   }





}

Credits

Techatronic

Techatronic

72 projects • 124 followers
Electronic engineer

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