Skip to content

Instantly share code, notes, and snippets.

@daviseford

daviseford/led_hula_hoop_code.ino

Created November 26, 2016 17:33
Show Gist options
  • Save daviseford/b48a91bdad0da503668572850ccf734e to your computer and use it in GitHub Desktop.
Save daviseford/b48a91bdad0da503668572850ccf734e to your computer and use it in GitHub Desktop.
Download ZIP
A really awful bit of code that ran our failed led hula hoop product. http://daviseford.com/building-an-led-hula-hoop
Raw
led_hula_hoop_code.ino
#include "LPD8806.h"
#include "SPI.h"
#include <avr/sleep.h>
#include "hearts.h"
//since data is on 11 and clock is on 13, we can use hardware SPI
LPD8806 strip = LPD8806(160); //32 LED's per meter * 5
int demoCaseNumber = 0;
int intervalDemo = 10000; // Looking like this is 10 seconds.
int powerPin = 4;
int upModePin = 3;
int upColorPin = 2;
int upModeButtonState = HIGH;
int upModeButtonCycles = 0;
int upColorButtonState = HIGH;
int upColorButtonCycles = 0;
int CYCLES_DEBOUNCE = 2; //check the button for X ticks to see if it is bouncing
int MAX_COLORS = 19;
int MAX_MODES = 17;
int MAX_STRIPES = 5;
unsigned long tick = 0;
int mode = 1;
int color = 1;
long previousMillis = 0;
long interval = 500;
uint16_t i, j, x, y;
uint32_t c, d;
// Set the first variable to the NUMBER of pixels. 32 = 32 pixels in a row
// The LED strips are 32 LEDs per meter but you can extend/cut the strip
void ISR_Wake() {
detachInterrupt(0);
detachInterrupt(1);
}
void blackout() {
for(int i=0; i < strip.numPixels()+1; i++) {
strip.setPixelColor(i, strip.Color(0,0,0));
}
strip.show();
}
void triggerSleep() {
blackout();
attachInterrupt(0,ISR_Wake,LOW); //pin 2
attachInterrupt(1,ISR_Wake,LOW); //pin 3
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
sleep_mode();
//sleeping, until rudely interrupted
sleep_disable();
}
void triggerModeUp() {
++mode;
blackout();
}
void triggerColorUp() {
color++;
blackout();
}
void handleButtons() {
if(digitalRead(powerPin) == LOW) {
triggerSleep();
}
// software debounce
if(digitalRead(upModePin) != upModeButtonState) {
upModeButtonCycles++;
if(upModeButtonCycles > CYCLES_DEBOUNCE) {
upModeButtonCycles = 0;
upModeButtonState = digitalRead(upModePin);
if(upModeButtonState == LOW) {
triggerModeUp();
}
}
}
// software debounce
if(digitalRead(upColorPin) != upColorButtonState) {
upColorButtonCycles++;
if(upColorButtonCycles > CYCLES_DEBOUNCE) {
upColorButtonCycles = 0;
upColorButtonState = digitalRead(upColorPin);
if(upColorButtonState == LOW) {
triggerColorUp();
}
}
}
}
void handleStrip( int temp ) {
//switch(mode%MAX_MODES) {
switch (temp){
case 0: //solid
c = GetColor(color%MAX_COLORS);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
break;
case 1: //every other led
c = GetColor((tick%3+color)% MAX_COLORS);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
break;
case 2:
if(tick % 50 == 0) {
c = GetColor(color%MAX_COLORS);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
if(tick % 50 == 25) {
c = strip.Color(0,0,0);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
break;
case 3: //strobe 2 color
if(tick % 30 == 0) {
c = GetColor(color%MAX_COLORS);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
if(tick % 30 == 15) {
c = GetColor(color%MAX_COLORS+2);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
break;
case 4: //strobe 3 color
if(tick % 60 == 20) {
c = GetColor(color%MAX_COLORS);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
if(tick % 60 == 40) {
c = GetColor(color%MAX_COLORS+random(5));
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
if(tick % 60 == 60) {
c = GetColor(color%MAX_COLORS+random(2));
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
}
break;
case 5: //chasers
d = (color / MAX_COLORS) % MAX_STRIPES + 1; //chaser
c = GetColor(color % MAX_COLORS); //color
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
if(i % (strip.numPixels()/d) == j) {
strip.setPixelColor(i, c);
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;
case 6: //chasers + statics
d = (color / MAX_COLORS) % MAX_STRIPES + 1; //chaser
c = GetColor(color % MAX_COLORS); //color
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
x = i % (strip.numPixels()/d);
if((x == j) || (x == 0)) {
strip.setPixelColor(i, c);
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;
case 7: //fuckin' rainbows
j = tick % 384;
for(i=0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
}
break;
case 8: //rainbow dither
d = (color / MAX_COLORS) % MAX_STRIPES + 1; //chaser
c = tick % 384;
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //first pixel
strip.setPixelColor(i + 1, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //second pixel
strip.setPixelColor(i + 2, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //third pixel
strip.setPixelColor(i + 32, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //first pixel
strip.setPixelColor(i + 33, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //second pixel
strip.setPixelColor(i + 34, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384));
strip.show();
strip.setPixelColor(i, 0);
strip.setPixelColor(i + 32, 0);
}
break;
case 9: //rainbow chaser
//d = random(3); //chaser
d = 3;
x = tick % 384;
c = GetColor(color % MAX_COLORS); //color
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
if(i % (strip.numPixels()/d) == j) {
strip.setPixelColor(i, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + x) % 384)); //first pixel
strip.setPixelColor(i + 1, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + x) % 384)); //second pixel
strip.setPixelColor(i + 2, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + x) % 384));
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;
/*case 8: //rainbow chaser (3 pixel chaser)
d = (color / MAX_COLORS) % MAX_STRIPES + 1; //chaser
c = tick % 384;
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
if(i % (strip.numPixels()/d) == c) {
strip.setPixelColor(i, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //first pixel
strip.setPixelColor(i + 1, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //second pixel
strip.setPixelColor(i + 2, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //third pixel
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;*/
/*case 10: //hands POV
j = tick % 150;
d = hands[j];
//green //orange
c = (j < 14)?GetColor((color+2)%MAX_COLORS):GetColor((color+3)%MAX_COLORS);
for(i=0;i<32;i++) {
//adding 32 to the index makes it appear on the side opposite the controller
if(d & 0x00000001) {
strip.setPixelColor(i+32, c);
}
else {
strip.setPixelColor(i+32, strip.Color(0,0,0));
}
d >>= 1;
}
break;
case 11: //tanner POV
j = tick % 150;
d = tanner[j];
//green //orange
c = GetColor(color % MAX_COLORS);
for(i=0;i<32;i++) {
//adding 32 to the index makes it appear on the side opposite the controller
if(d & 0x00000001) {
strip.setPixelColor(i+32, c);
}
else {
strip.setPixelColor(i+32, strip.Color(0,0,0));
}
d >>= 1;
}
break;
case 12: //tanner2 POV
j = tick % 150;
d = tanner2[j];
//green //orange
c = GetColor(color % MAX_COLORS);
for(i=0;i<32;i++) {
//adding 32 to the index makes it appear on the side opposite the controller
if(d & 0x00000001) {
strip.setPixelColor(i+32, c);
}
else {
strip.setPixelColor(i+32, strip.Color(0,0,0));
}
d >>= 1;
}
break;*/
case 10: //hearts, entire strip
j = tick % 149;
d = hearts[j];
//green //orange
c = GetColor(color % MAX_COLORS);
for(i=0;i<32;i++) {
//adding 32 to the index makes it appear on the side opposite the controller
if(d & 0x00000001) {
strip.setPixelColor(i, c);
strip.setPixelColor(i+32, c);
strip.setPixelColor(i+64, c);
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
strip.setPixelColor(i+32, strip.Color(0,0,0));
strip.setPixelColor(i+64, strip.Color(0,0,0));
}
d >>= 1;
}
break;
case 11: //stripes
c = GetColor(color % MAX_COLORS);
d = GetColor((color +1) % MAX_COLORS);
for(i = 0; i < 4; i++) {
strip.setPixelColor(i, c);
strip.setPixelColor(i+9, c);
strip.setPixelColor(i+18, c);
strip.setPixelColor(i+27, c);
strip.setPixelColor(i+36, c);
strip.setPixelColor(i+45, c);
strip.setPixelColor(i+54, c);
strip.setPixelColor(i+63, c);
strip.setPixelColor(i+72, c);
strip.setPixelColor(i+81, c);
strip.setPixelColor(i+89, c);
}
for(i = 4; i < 9; i++) {
strip.setPixelColor(i, d);
strip.setPixelColor(i+9, d);
strip.setPixelColor(i+18, d);
strip.setPixelColor(i+27, d);
strip.setPixelColor(i+36, d);
strip.setPixelColor(i+45, d);
strip.setPixelColor(i+54, d);
strip.setPixelColor(i+63, d);
strip.setPixelColor(i+72, d);
strip.setPixelColor(i+81, d);
strip.setPixelColor(i+89, d);
}
break;
case 12: //stripes rainbow color
c = GetColor(color % MAX_COLORS);
j = tick % 384;
for(i = 0; i < 4; i++) {
strip.setPixelColor(i, c);
strip.setPixelColor(i+9, c);
strip.setPixelColor(i+18, c);
strip.setPixelColor(i+27, c);
strip.setPixelColor(i+36, c);
strip.setPixelColor(i+45, c);
strip.setPixelColor(i+54, c);
strip.setPixelColor(i+63, c);
strip.setPixelColor(i+72, c);
strip.setPixelColor(i+81, c);
strip.setPixelColor(i+89, c);
}
for(i = 4; i < 9; i++) {
strip.setPixelColor(i, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+9, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+18, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+27, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+36, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+45, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+54, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+63, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+72, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+81, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
strip.setPixelColor(i+89, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + j) % 384));
}
break;
case 13: //stripes changing color
c = GetColor(color % MAX_COLORS);
//d = GetColor((color + random(11) % MAX_COLORS));
j = tick % 384;
for(i = 0; i < 4; i++) {
strip.setPixelColor(i, c);
strip.setPixelColor(i+9, c);
strip.setPixelColor(i+18, c);
strip.setPixelColor(i+27, c);
strip.setPixelColor(i+36, c);
strip.setPixelColor(i+45, c);
strip.setPixelColor(i+54, c);
strip.setPixelColor(i+63, c);
strip.setPixelColor(i+72, c);
strip.setPixelColor(i+81, c);
strip.setPixelColor(i+89, c);
}
for(i = 4; i < 9; i++) {
d = GetColor((color + random(11)) % MAX_COLORS);
strip.setPixelColor(i, d);
strip.setPixelColor(i+9, d);
strip.setPixelColor(i+18, d);
strip.setPixelColor(i+27, d);
strip.setPixelColor(i+36, d);
strip.setPixelColor(i+45, d);
strip.setPixelColor(i+54, d);
strip.setPixelColor(i+63, d);
strip.setPixelColor(i+72, d);
strip.setPixelColor(i+81, d);
strip.setPixelColor(i+89, d);
}
break;
case 14:
for(i = 0; i < 4; i++) {
d = GetColor((color + random(3)) % MAX_COLORS);
strip.setPixelColor(i, d);
strip.setPixelColor(i+9, d);
strip.setPixelColor(i+18, d);
strip.setPixelColor(i+27, d);
strip.setPixelColor(i+36, d);
strip.setPixelColor(i+45, d);
strip.setPixelColor(i+54, d);
strip.setPixelColor(i+63, d);
strip.setPixelColor(i+72, d);
strip.setPixelColor(i+81, d);
strip.setPixelColor(i+89, d);
}
for(i = 4; i < 9; i++) {
d = GetColor((color + random(6)) % MAX_COLORS);
strip.setPixelColor(i, d);
strip.setPixelColor(i+9, d);
strip.setPixelColor(i+18, d);
strip.setPixelColor(i+27, d);
strip.setPixelColor(i+36, d);
strip.setPixelColor(i+45, d);
strip.setPixelColor(i+54, d);
strip.setPixelColor(i+63, d);
strip.setPixelColor(i+72, d);
strip.setPixelColor(i+81, d);
strip.setPixelColor(i+89, d);
}
break;
case 15: //solid
c = GetColor(color%MAX_COLORS);
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
}
break;
case 16: //rainbow chaser (3 pixel chaser) --------------DAVIS
d = (color / MAX_COLORS) % MAX_STRIPES +3; //chaser
//c = tick % 384;
//c = tick % 96;
c = tick % 80;
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
if(i % (strip.numPixels()/d) == c) {
strip.setPixelColor(i, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //first pixel
strip.setPixelColor(i + 1, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //second pixel
strip.setPixelColor(i + 2, Wheel(((i * 384 / strip.numPixels() * (color%MAX_COLORS)) + c) % 384)); //third pixel
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;
case 17: //3 spaced chasers --------------DAVIS
d = (color / MAX_COLORS) % MAX_STRIPES + 3; //chaser
c = GetColor(color % MAX_COLORS); //color
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
if(i % (strip.numPixels()/d) == j) {
strip.setPixelColor(i, c);
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;
case 18: //chasers + statics --------------DAVIS
//If you look up an RGB chart in Photoshop, just divide the values by 2 to arrive at the necessary input)
//int MAX_COLORS = 19;
//int MAX_MODES = 17;
//int MAX_STRIPES = 5;
//int color = 1
//I'm fucking with this because I don't really understand his math - it seems very convoluted.
//***ORIGINAL***
// d = (color / MAX_COLORS) % MAX_STRIPES + 2; //chaser, was +1, now +2
// c = strip.Color(20,127,104); //hardcoded teal
// j = tick % (strip.numPixels()/d);
// for(i=0; i < strip.numPixels(); i++) {
// x = i % (strip.numPixels()/d);
// if((x == j) || (x == 0)) {
// strip.setPixelColor(i, c);
// }
// else {
// strip.setPixelColor(i, strip.Color(0,0,0));
// }
// }
// break;
d = 3; //chaser, was +1, now +2
c = strip.Color(20,127,104); //hardcoded teal
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
x = i % (strip.numPixels()/d);
if((x == j) || (x == 0)) {
strip.setPixelColor(i, c);
}
else {
strip.setPixelColor(i, strip.Color(0,0,0));
}
}
break;
case 19: //3 spaced chasers, with filled in gaps --------------DAVIS
d = (color / MAX_COLORS) % MAX_STRIPES + 4; //chaser
c = GetColor(color % MAX_COLORS); //color
j = tick % (strip.numPixels()/d);
for(i=0; i < strip.numPixels(); i++) {
if(i % (strip.numPixels()/d) == j) {
strip.setPixelColor(i, strip.Color(0,95,121));
}
else {
strip.setPixelColor(i, strip.Color(50,10,100));
}
}
break;
// case 20: //random static colors
// unsigned long currentMillis = millis();
// if(currentMillis - previousMillis > interval) {
// previousMillis = currentMillis;
// for(int i = 0; i < strip.numPixels(); i++) {
// c = GetColor((color % MAX_COLORS) + random(6));
// strip.setPixelColor(i, c);
// }
// break;
// strip.show();
// }
// break;
}
strip.setPixelColor(strip.numPixels()-1, strip.Color(0,0,0)); //set that last LED off because it overlaps
strip.show();
}
void setup() {
// Start up the LED strip
strip.begin();
pinMode(powerPin, INPUT); // declare pushbutton as input
pinMode(upModePin, INPUT); // declare pushbutton as input
pinMode(upColorPin, INPUT); // declare pushbutton as input
digitalWrite(powerPin, HIGH);
digitalWrite(upModePin, HIGH);
digitalWrite(upColorPin, HIGH);
//triggerSleep();
}
void loop() {
tick++;
handleStrip(demoLoopSeconds());
handleButtons();
}
int demoLoopSeconds() {
unsigned long currentMillis = millis();
if((currentMillis - previousMillis) > intervalDemo) {
previousMillis = currentMillis;
demoCaseNumber++;
}
return (demoCaseNumber % 20);
}
/* Helper functions */
//Input a value 0 to 384 to get a color value.
//The colours are a transition r - g - b - back to r
uint32_t Wheel(uint16_t WheelPos)
{
byte r, g, b;
switch(WheelPos / 128)
{
case 0:
r = 127 - WheelPos % 128; // red down
g = WheelPos % 128; // green up
b = 0; // blue off
break;
case 1:
g = 127 - WheelPos % 128; // green down
b = WheelPos % 128; // blue up
r = 0; // red off
break;
case 2:
b = 127 - WheelPos % 128; // blue down
r = WheelPos % 128; // red up
g = 0; // green off
break;
}
return(strip.Color(r,g,b));
}
uint32_t GetColor(int c)
{
switch(c) {
case 0:
return strip.Color(127,0,0); //red
case 1:
return strip.Color(127,0,60);
case 2:
return strip.Color(127,0,127);
case 3: //orange
return strip.Color(127,60,0);
case 4: //yellow
return strip.Color(127,127,0);
case 5:
return strip.Color(127,127,60);
case 6:
return strip.Color(60,127,0);
case 7:
return strip.Color(60,127,127);
case 8:
return strip.Color(60,60,127);
case 9:
return strip.Color(60,90,60);
case 10:
return strip.Color(60,60,0);
case 11:
return strip.Color(0,0,127); //blue
case 12:
return strip.Color(0,60,127);
case 13:
return strip.Color(0,127,127);
case 14:
return strip.Color(0,127,0); //green
case 15:
return strip.Color(127,30,10);
case 16:
return strip.Color(25,80,100);
case 17:
return strip.Color(127,127,127); //White
case 18:
int r, g, b;
r = random(0, 50);
g = random(40, 90);
b = random(80, 128);
return strip.Color(r,g,b);
default:
return strip.Color(0,0,0);
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment