init

src/main.cpp

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+#include <Tone32.h>
+#include <NeoPixelBus.h>
+
+#define BUZZER_PIN 5
+#define BUZZER_CHANNEL 0
+const uint16_t PixelCount = 10; // this example assumes 4 pixels, making it smaller will cause a failure
+// make sure to set this to the correct pins
+const uint8_t DotDataPin = 14;  
+
+#define colorSaturation 128
+#define MAX_ITER 2000000
+#define IMPULS 400 //400 ms impuls minimal
+// for software bit bang
+NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(PixelCount, DotDataPin);
+// for hardware SPI (best performance but must use hardware pins)
+//NeoPixelBus<DotStarBgrFeature, DotStarSpiMethod> strip(PixelCount);
+
+// DotStars that support RGB color and a overall luminance/brightness value
+// NeoPixelBus<DotStarLbgrFeature, DotStarMethod> strip(PixelCount, DotClockPin, DotDataPin);
+// DotStars that support RGBW color with a seperate white element
+//NeoPixelBus<DotStarWbgrFeature, DotStarMethod> strip(PixelCount, DotClockPin, DotDataPin);
+
+RgbColor red(colorSaturation, 0, 0);
+RgbColor green(0, colorSaturation, 0);
+RgbColor blue(0, 0, colorSaturation);
+RgbColor white(colorSaturation);
+RgbColor black(0);
+
+RgbColor 	Aqua(0,255,255);
+RgbColor  Black(0,0,0);
+RgbColor 	Blue(0,0,255);
+RgbColor	Cream(255,251,240);
+RgbColor  Grey(128,128,128);
+RgbColor 	Fuchsia(255,0,255);
+RgbColor	Green(0,128,0);
+RgbColor	Lime_green(0,255,0);
+RgbColor 	Maroon(128,0,0);
+RgbColor  Navy(0,0,128);
+RgbColor	Olive_green(128,128,0);
+RgbColor 	Purple(255,0,255);
+RgbColor	Red(255,0,0);
+RgbColor 	Silver(192,192,192);
+RgbColor 	Teal(0,128,128);
+RgbColor	White(255,255,255);
+RgbColor rgbArrayL[] = {Aqua, Black, Blue, Cream, Grey, Fuchsia, Green, Lime_green,Maroon,Navy, Olive_green,Purple,Red,Silver,Teal,White};
+// for use with RGB DotStars when using the luminance/brightness global value
+// note that its range is only 0 - 31 (31 is full bright) and 
+// also note that it is not useful for POV displays as it will cause more flicker
+RgbwColor redL(colorSaturation, 0, 0, 31); // use white value to store luminance
+RgbwColor greenL(0, colorSaturation, 0, 31); // use white value to store luminance
+RgbwColor blueL(0, 0, colorSaturation, 31); // use white value to store luminance
+RgbwColor whiteL(255, 255, 255, colorSaturation / 8); // luminance is only 0-31
+
+// Position of snake
+static unsigned int n;
+static RgbColor LEDonColor;
+static RgbColor LEDoffColor;
+
+RgbColor rgbArray[] = {red, blue, green, white};
+
+const byte interruptPin = 17;
+volatile int interruptCounter = 0;
+int numberOfInterrupts = 0;
+
+unsigned long one,zero;
+bool run;
+
+TaskHandle_t Task1;
+
+
+portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;
+
+void LCD_snake()
+{
+  // set the colors
+  Serial.println("Snake:");
+  for (n=0;n<50;n++) {
+    for (int i=0;i < PixelCount;i++) {
+      strip.SetPixelColor(i,rgbArrayL[(i + n) % sizeof(rgbArrayL)]);
+    }
+    strip.Show();
+    delay(250);
+  }
+  strip.ClearTo(black);
+  strip.Show();
+}
+
+void LCD_blink_color()
+{
+  Serial.print("Blink:");
+  if (n % 2)
+    for (int i=0;i < PixelCount;i++) {
+      strip.SetPixelColor(i,LEDonColor);
+  } else {
+    for (int i=0;i < PixelCount;i++) {
+      strip.SetPixelColor(i,LEDoffColor);
+    }
+  }
+  n++;
+  strip.Show();
+}
+
+void beep(void * pvParameters) {
+  for (;;) {
+    if (run) {
+      tone(BUZZER_PIN, NOTE_C4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      tone(BUZZER_PIN, NOTE_D4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      tone(BUZZER_PIN, NOTE_E4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      tone(BUZZER_PIN, NOTE_F4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      tone(BUZZER_PIN, NOTE_G4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      tone(BUZZER_PIN, NOTE_A4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      tone(BUZZER_PIN, NOTE_B4, 500, BUZZER_CHANNEL);
+      noTone(BUZZER_PIN, BUZZER_CHANNEL);
+      run = false;
+    }
+    delay(100);
+  }
+}
+ 
+void IRAM_ATTR handleInterrupt() {
+
+  portENTER_CRITICAL_ISR(&mux);
+
+  if (digitalRead(interruptPin) == HIGH) one = millis();
+  if (digitalRead(interruptPin) == LOW) zero = millis();
+  
+  interruptCounter++;
+  portEXIT_CRITICAL_ISR(&mux);
+}
+
+void setup() {
+ 
+  Serial.begin(115200);
+
+  Serial.println("Initializing strip...");
+  strip.Begin();
+  strip.ClearTo(black);
+  strip.Show();
+
+  one = zero = millis();
+
+  Serial.println("Monitoring interrupts: ");
+  pinMode(interruptPin, INPUT_PULLUP);
+  attachInterrupt(digitalPinToInterrupt(interruptPin), handleInterrupt, CHANGE);
+  
+  xTaskCreatePinnedToCore(
+             beep, /* Task function. */
+             "Task1",   /* name of task. */
+             10000,     /* Stack size of task */
+             NULL,      /* parameter of the task */
+             1,         /* priority of the task */
+             &Task1,    /* Task handle to keep track of created task */
+             0);        /* pin task to core 0 */
+
+}
+
+void loop() {
+
+  if(interruptCounter>0){
+ 
+      portENTER_CRITICAL(&mux);
+      interruptCounter--;
+      portEXIT_CRITICAL(&mux);
+ 
+      numberOfInterrupts++;
+      Serial.print("An interrupt has occurred. Total: ");
+      Serial.println(numberOfInterrupts);
+      
+      if (zero > one && zero - one > IMPULS) run = true;
+      else run = false;
+      
+      if (run) LCD_snake();
+      
+  }
+  delay(100);
+}