Long Duration Dog Program

src/main.cpp

@@ -36,6 +36,8 @@ int16_t sBuffer[bufferLen];
 #define LEDC_DUTY               (4095)
 #define LEDC_FREQUENCY          (20000) // Frequency in Hertz. Set frequency at 20 kHz
 
+#define uS_TO_MS_FACTOR 1000  /* Conversion factor for micro seconds to seconds */
+
 void i2s_install() {
   // Set up I2S Processor configuration
   const i2s_config_t i2s_config = {
@@ -99,6 +101,8 @@ static void example_ledc_init(void)
 
 void setup() {
 
+   setCpuFrequencyMhz(80);
+
   // Set up Serial Monitor
   Serial.begin(115200);
   Serial.println(" ");
@@ -121,6 +125,8 @@ float thresholdMax = 1000;
 float thresholdMin = 75;
 float threshold=thresholdMax;
 
+int numberOfSamples = 0;
+
 void loop() {
 
   // Get I2S data and place in data buffer
@@ -141,25 +147,24 @@ void loop() {
       mean /= samples_read;
       
       if (std::abs(mean) < thresholdMin) {
-	 Serial.print(mean);
-	 Serial.print(" ");
-	 Serial.println(thresholdMin);
-	 delay(1);
 	  return;
       }
 
+      numberOfSamples = 0;
+
+      const auto maxPower = 1024;
       Serial.print("CONTINUE");
-      for(float progress=0; progress<1.0f; progress+=0.001f) {
+      for(float progress=0; progress<1.0f; progress+=0.000025f) {
         int dogOnDuty;
-        if(progress < 0.2) //20% 
+        if(progress < 0.05)
         {
-  	      dogOnDuty = progress * 5 * 1024;
-        } else if (progress < 0.8) //20% -80%
+  	      dogOnDuty = progress * 20 * maxPower;
+        } else if (progress < 0.95)
         {
-  	      dogOnDuty = 1024;
+  	      dogOnDuty = maxPower;
         } else 
         {
-  	      dogOnDuty = 1024 - ((progress - 0.8) * 5 * 1024);
+  	      dogOnDuty = maxPower - ((progress - 0.95) * 20 * maxPower);
         }
 
         ESP_ERROR_CHECK(ledc_set_duty(LEDC_MODE, LEDC_CHANNEL, dogOnDuty));