Hello, I'm very new to this and have been doing some research.
I was wondering if there was a way to do add a loop to my case statement so that when the button hasn't been press the code continues to loop until the button has been pressed again.
I was thinking about rewriting the code so that the button runs on a counter (not 100% sure how to do that an example would be nice) so that when it is press x amount of times it runs through each case/program till it comes back to the beginning.
Everything works fine with the code, except that the cases only run once which I'm trying to eliminate. Thanks!
here is the code:
#include <Adafruit_NeoPixel.h>
#define BUTTON_PIN 1 // Digital IO pin connected to the button. This will be
// driven with a pull-up resistor so the switch should
// pull the pin to ground momentarily. On a high -> low
// transition the button press logic will execute.
#define PIXEL_PIN 2 // Digital IO pin connected to the NeoPixels.
#define PIXEL_COUNT 58
// Parameter 1 = number of pixels in strip, neopixel stick has 8
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
// NEO_RGB Pixels are wired for RGB bitstream
// NEO_GRB Pixels are wired for GRB bitstream, correct for neopixel stick
// NEO_KHZ400 400 KHz bitstream (e.g. FLORA pixels)
// NEO_KHZ800 800 KHz bitstream (e.g. High Density LED strip), correct for neopixel stick
Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, NEO_GRB + NEO_KHZ800);
bool oldState = HIGH;
int showType = 0;
void setup() {
pinMode(BUTTON_PIN, INPUT_PULLUP);
strip.begin();
strip.show(); // Initialize all pixels to 'off'
}
void loop() {
// Get current button state.
bool newState = digitalRead(BUTTON_PIN);
// Check if state changed from high to low (button press).
if (newState == LOW && oldState == HIGH) {
// Short delay to debounce button.
delay(5);
// Check if button is still low after debounce.
newState = digitalRead(BUTTON_PIN);
if (newState == LOW) {
showType++;
if (showType > 6)
showType=0;
startShow(showType);
}
}
// Set the last button state to the old state.
oldState = newState;
}
void startShow(int i) {
switch(i){
case 0: colorWipe(strip.Color(0, 0, 0), 50); // Black/off
break;
case 1: CylonBounce(0xff, 0xff, 0xff, 4, 10, 50); // White
break;
case 2: colorWipe(strip.Color(0, 255, 255), 50); // Cyan
break;
case 3: theaterChaseRainbow(50);
break;
case 4: colorWipe(strip.Color(255,0, 0), 50); // Red
break;
case 5: theaterChase(strip.Color( 0, 0, 127), 50); // Blue
break;
case 6: rainbowCycle(20);
break;
}
}
//Color Wipe Mode
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);
}
}
// Rainbow Cycle Mode
void rainbowCycle(uint8_t wait) {
uint16_t i, j;
for(j=0; j<256*10; j++) { // 10 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);
}
}
//Theatre-style crawling lights.
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
}
}
}
}
//Theatre-style crawling lights with rainbow effect
void theaterChaseRainbow(uint8_t wait) {
for (int j=0; j < 512; j++) { // cycle all 256 colors in the wheel twice
for (int q=0; q < 3; q++) {
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, Wheel( (i+j) % 255)); //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
}
}
}
}
// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
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);
}
void CylonBounce(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay){
for(int i = 0; i < PIXEL_COUNT-EyeSize-2; i++) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
for(int i = PIXEL_COUNT-EyeSize-2; i > 0; i--) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
}
//extra stuff
void showStrip() {
#ifdef ADAFRUIT_NEOPIXEL_H
// NeoPixel
strip.show();
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
// FastLED
FastLED.show();
#endif
}
void setPixel(int Pixel, byte red, byte green, byte blue) {
#ifdef ADAFRUIT_NEOPIXEL_H
// NeoPixel
strip.setPixelColor(Pixel, strip.Color(red, green, blue));
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
// FastLED
leds[Pixel].r = red;
leds[Pixel].g = green;
leds[Pixel].b = blue;
#endif
}
void setAll(byte red, byte green, byte blue) {
for(int i = 0; i < PIXEL_COUNT; i++ ) {
setPixel(i, red, green, blue);
}
showStrip();
}