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For this project, you need Bluetooth Terminal HC-05. (Don't do this before you upload the code to the Arduino)
When you open the app it should look like this.
After you open the app, press the scan button. Then press on HC-05.
The pairing code is 1234.
You dont have to change ascii to hex,
In the command section type one of these commands:
r = red color led strip
g = green color led strip
b = blue color led strip
w = white color led strip
o = turn off
a = rainbow animation
m = mix pattern
One last thing, be sure that you have the Adafruit NeoPixel library installed.
#include <SoftwareSerial.h>
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
SoftwareSerial BT(10, 11); // TX, RX of the Bluetooth Module
#define PIXEL_PIN 7 // Data Pin of Led strip
#define PIXEL_COUNT 12 // Number of LEDs in the strip
#define BRIGHTNESS 250 // use 96 for medium brightness
#define SPEED 50 // Speed of each Color Transition (in ms)
#define IMMEDIATELY 0 // Transition happen instantly
#define RAINBOW_SPEED 50 // Rainbow Transition speed
Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, NEO_GRB + NEO_KHZ800);
bool offOld = LOW;
bool WhiteOld = LOW;
bool RedOld = LOW;
bool GreenOld = LOW;
bool BlueOld = LOW;
bool TopazOld = LOW;
bool LilacOld = LOW;
bool RainbowOld = LOW;
bool rgbOld = LOW;
int showType = 0;
void setup() {
BT.begin(9600);
BT.println("Connected to Arduino");
strip.setBrightness(BRIGHTNESS);
strip.begin();
strip.show();
}
char a;
void loop() {
bool off = LOW;
bool White = LOW;
bool Blue = LOW;
bool Red = LOW;
bool Green = LOW;
bool Topaz = LOW;
bool Lilac = LOW;
bool Rainbow = LOW;
bool rgb = LOW;
bool ende;
if (BT.available())
{
a= (char)BT.read();
if(a=='o')
{
off = HIGH;
BT.println("TURNING OFF LEDs..");
}else{
off = LOW;
}
// ===========================================================================================
if(a=='w')
{
White = HIGH;
BT.println("TURNING LEDs WHITE");
}else{
White = LOW;
}
// ===========================================================================================
if(a=='b')
{
Blue = HIGH;
BT.println("CHANGING TO BLUE");
}else{
Blue = LOW;
}
// ===========================================================================================
if(a=='r')
{
Red = HIGH;
BT.println("CHANGING TO RED");
}else{
Red = LOW;
}
// ===========================================================================================
if(a=='g')
{
Green = HIGH;
BT.println("CHANGING TO GREEN");
}else{
Green = LOW;
}
// ===========================================================================================
if(a=='t')
{
Topaz = HIGH;
BT.println("CHANGING TO TOPAZ");
}else{
Topaz = LOW;
}
// ===========================================================================================
if(a=='l')
{
Lilac = HIGH;
BT.println("CHANGING TO LILAC");
}else{
Lilac = LOW;
}
// ===========================================================================================
if(a=='a')
{
Rainbow = HIGH;
BT.println("RAINBOW ANIMATION");
}else{
Rainbow = LOW;
}
// ===========================================================================================
if(a=='m')
{
rgb = HIGH;
BT.println("MIX COLORS");
}else{
rgb = LOW;
}
}
if (off == LOW && offOld == HIGH) {
delay(20);
if (off == LOW) {
showType = 0 ; // Off animation Type 0
startShow(showType);
}
}
// ===========================================================================================
if (White == LOW && WhiteOld == HIGH) {
delay(20);
if (White == LOW) {
showType = 1 ; // White animation Type 1
startShow(showType);
}
}
// ===========================================================================================
if (Red == LOW && RedOld == HIGH) {
delay(20);
if (Red == LOW) {
showType = 2 ; // Red animation Type 2
startShow(showType);
}
}
// ===========================================================================================
if (Green == LOW && GreenOld == HIGH) {
delay(20);
if (Green == LOW) {
showType = 3 ; // Green animation Type 3
startShow(showType);
}
}
// ===========================================================================================
if (Blue == LOW && BlueOld == HIGH) {
delay(20);
if (Blue == LOW) {
showType = 4 ; // Blue animation Type 4
startShow(showType);
}
}
// ===========================================================================================
if (Topaz == LOW && TopazOld == HIGH) {
delay(20);
if (Topaz == LOW) {
showType = 5 ; // Topaz animation Type 5
startShow(showType);
}
}
// ===========================================================================================
if (Lilac == LOW && LilacOld == HIGH) {
delay(20);
if (Lilac == LOW) {
showType = 6 ; // Topaz animation Type 6
startShow(showType);
}
}
// ===========================================================================================
if (Rainbow == LOW && RainbowOld == HIGH) {
delay(20);
if (Rainbow == LOW) {
showType = 8; // Rainbow animation Type 8
startShow(showType);
}
}
// ===========================================================================================
if (rgb == LOW && rgbOld == HIGH) {
delay(20);
if (rgb == LOW) {
showType = 7; // Mix animation Type 7
rgb = HIGH;
startShow(showType);
}
}
WhiteOld = White;
RedOld = Red;
BlueOld = Blue;
GreenOld = Green;
TopazOld = Topaz;
LilacOld = Lilac;
offOld = off;
RainbowOld = Rainbow;
rgbOld = rgb;
}
void startShow(int i) {
switch(i){
case 0: colorWipe(strip.Color(0, 0, 0), SPEED); // Black/off
break;
case 1: strip.setBrightness(255); // Changes the Brightness to MAX
colorWipe(strip.Color(255, 255, 255), IMMEDIATELY); // White
strip.setBrightness(BRIGHTNESS); // Reset the Brightness to Default value
break;
case 2: colorWipe(strip.Color(255, 0, 0), SPEED); // Red
break;
case 3: colorWipe(strip.Color(0, 255, 0), SPEED); // Green
break;
case 4: colorWipe(strip.Color(0, 0, 255), SPEED); // Blue
break;
case 5: colorWipe(strip.Color(0, 250, 255), SPEED); // Topaz
break;
case 6: colorWipe(strip.Color(221, 130, 255), SPEED); // Lilac
break;
case 7: colorWipe(strip.Color(255, 0, 0), SPEED); // Red
colorWipe(strip.Color(0, 255, 0), SPEED); // Green
colorWipe(strip.Color(0, 0, 255), SPEED); // Blue
theaterChase(strip.Color( 0, 0, 127), SPEED); // Blue
theaterChase(strip.Color(127, 0, 0), SPEED); // Red
theaterChase(strip.Color(0, 127, 0), SPEED); // Green
break;
case 8: rainbowCycle(25);
break;
}
}
void colorWipe(uint32_t c, uint8_t wait) {
for(uint16_t i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
strip.show();
delay(wait);
}
}
void rainbowCycle(uint8_t wait) {
uint16_t i, j;
for(j=0; j<256*10; j++) { // 5 cycles of all colors on wheel
for(i=0; i< strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
}
strip.show();
delay(wait);
}
}
void theaterChase(uint32_t c, uint8_t wait) {
for (int j=0; j<10; j++) { //do 10 cycles of chasing
for (int q=0; q < 3; q++) {
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, c); //turn every third pixel on
}
strip.show();
delay(wait);
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
}
}
}
}
uint32_t Wheel(byte WheelPos) {
WheelPos = 255 - WheelPos;
if(WheelPos < 85) {
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
}
if(WheelPos < 170) {
WheelPos -= 85;
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
WheelPos -= 170;
return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}
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