Last active
September 25, 2019 15:23
-
-
Save smukkejohan/e92d06a30e4b8ec711032e5ebb0e540d to your computer and use it in GitHub Desktop.
Sinuskurver til animation over tid uden delays
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <Arduino.h> | |
| //#define FASTLED_RGBW | |
| //#include <FastLED.h> | |
| #include <Adafruit_NeoPixel.h> | |
| // Which pin on the Arduino is connected to the NeoPixels? | |
| // On a Trinket or Gemma we suggest changing this to 1: | |
| #define LED_PIN 6 | |
| // How many NeoPixels are attached to the Arduino? | |
| #define LED_COUNT 24 | |
| // NeoPixel brightness, 0 (min) to 255 (max) | |
| #define BRIGHTNESS 50 | |
| Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRBW + NEO_KHZ800); | |
| unsigned long lastElapsedTimeMillis = 0; | |
| float animationTime = 0; | |
| int potPin = 32; | |
| // Fill strip pixels one after another with a color. Strip is NOT cleared | |
| // first; anything there will be covered pixel by pixel. Pass in color | |
| // (as a single 'packed' 32-bit value, which you can get by calling | |
| // strip.Color(red, green, blue) as shown in the loop() function above), | |
| // and a delay time (in milliseconds) between pixels. | |
| void colorWipe(uint32_t color, int wait) { | |
| for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip... | |
| strip.setPixelColor(i, color); // Set pixel's color (in RAM) | |
| strip.show(); // Update strip to match | |
| delay(wait); // Pause for a moment | |
| } | |
| } | |
| void fadeLedUpDownWithDelay() { | |
| for(int i=0; i<255; i++) { | |
| analogWrite(4, i); | |
| delay(30); | |
| } | |
| } | |
| void setup() { | |
| // put your setup code here, to run once: | |
| //FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS); | |
| //FastLED.setBrightness(128); | |
| strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED) | |
| strip.show(); // Turn OFF all pixels ASAP | |
| strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255) | |
| } | |
| void loop() { | |
| //int potVal = analogRead(potPin); | |
| //int speed = map(potVal, 0, 1023, 10, 200); | |
| // Med colorWipe sætter vi programmet i stå under hver animation | |
| // derfor kan vi ikke lytte til knapper, inputs mm. imens | |
| //colorWipe(strip.Color(255, 0, 0) , speed); // Red | |
| //colorWipe(strip.Color(0, 255, 0) , speed); // Green | |
| // I stedet kan vi lave en animation som en funktion af tiden | |
| // ved hjælp af en sinuskurve | |
| unsigned long elapsedTimeMillis = millis(); | |
| unsigned long deltaTime = elapsedTimeMillis - lastElapsedTimeMillis; | |
| lastElapsedTimeMillis = elapsedTimeMillis; | |
| int potVal = analogRead(potPin); | |
| float frequency = potVal * 0.00001; | |
| animationTime += deltaTime * frequency; | |
| float offset = M_PI / strip.numPixels(); | |
| for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip... | |
| float intensity = ((sin( animationTime + (offset*i) ) +1) * 0.5 ) * 255.0; | |
| // sin ( animation tid + (offset * nummer i række) + 1 ) * 05 * range vi skal bruge | |
| // sin returnere altid en værdi mellem -1 og 1 derfor vi lægger 1 til og ganger med 0.5 så det bliver mellem 0 og 1 | |
| // kunne også se sådan ud | |
| // float intensity = sin(animationTime + (offset*i)); | |
| // intensity = map(intensity, -1, 1, 0, 255); | |
| strip.setPixelColor(i, strip.Color(intensity, intensity, intensity)); // Set pixel's color (in RAM) | |
| } | |
| // fadeLedUpDownWithDelay(); // den her vil vi ikke have da den sætter programmet i stå | |
| // Istedet kan vi fade 1 LED uden delay | |
| analogWrite(4, ((sin(animationTime) +1) * 0.5) * 255.0); | |
| strip.show(); | |
| } | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment