Begin implementation of hardware LEDC fade

src/src/extras/PwmPin.cpp

@@ -81,7 +81,7 @@ LedC::LedC(uint8_t pin, uint16_t freq, boolean invert){
 ///////////////////
 
 LedPin::LedPin(uint8_t pin, float level, uint16_t freq, boolean invert) : LedC(pin, freq, invert){
-
+  
   if(!channel)
     Serial.printf("\n*** ERROR:  Can't create LedPin(%d) - no open PWM channels and/or Timers ***\n\n",pin);
   else
@@ -95,8 +95,9 @@ LedPin::LedPin(uint8_t pin, float level, uint16_t freq, boolean invert) : LedC(p
       channel->flags.output_invert?"(inverted)":""
       );
             
-  set(level);
-   
+  ledc_fade_func_install(0);
+
+  set(level);   
 }
 
 ///////////////////
@@ -110,9 +111,24 @@ void LedPin::set(float level){
     level=100;
 
   float d=level*(pow(2,(int)timer->duty_resolution)-1)/100.0;  
+    
   channel->duty=d;
-  ledc_channel_config(channel);
-  
+  ledc_channel_config(channel); 
+}
+
+///////////////////
+
+void LedPin::fade(float level, uint32_t fadeTime){
+
+  if(!channel)
+    return;
+
+  if(level>100)
+    level=100;
+
+  float d=level*(pow(2,(int)timer->duty_resolution)-1)/100.0;  
+
+  ledc_set_fade_time_and_start(channel->speed_mode,channel->channel,(uint32_t)d,fadeTime,LEDC_FADE_NO_WAIT);  
 }
 
 ///////////////////

src/src/extras/PwmPin.h

@@ -77,6 +77,7 @@ class LedPin : public LedC {
   public:
     LedPin(uint8_t pin, float level=0, uint16_t freq=DEFAULT_PWM_FREQ, boolean invert=false);   // assigns pin to be output of one of 16 PWM channels initial level and frequency
     void set(float level);                                                                      // sets the PWM duty to level (0-100)
+    void fade(float level, uint32_t fadeTime);                                                  // sets the PWM duty to level (0-100) within fadeTime in milliseconds
     
     static void HSVtoRGB(float h, float s, float v, float *r, float *g, float *b );       // converts Hue/Saturation/Brightness to R/G/B
 };

src/src/extras/extras.ino

@@ -28,12 +28,7 @@
 // This is a placeholder .ino file that allows you to easily edit the contents of this files using the Arduino IDE,
 // as well as compile and test from this point.  This file is ignored when the library is included in other sketches.
 
-#include "Blinker.h"
-#include "Pixel.h"
-#include <Wire.h>
-
-Blinker p(new Pixel(2),10);
-//Blinker p(NULL,10);
+#include "PwmPin.h"
 
 void setup() {     
  
@@ -41,19 +36,16 @@ void setup() {
   Serial.flush();
   delay(1000);                    // wait for interface to flush
 
-  Serial.println("\n\nHomeSpan Blinker Example\n");
-   Serial.printf("Pins = %d\n",p.getPin());
+  Serial.println("\n\nHomeSpan LED Fade Test\n");
+
+  LedPin led(26,50);
+  Serial.printf("Start\n");
+  led.fade(0,10000);
+  Serial.printf("End\n");
+
+  while(1);  
 
-  p.on();
-  delay(2000);
-  p.off();
-  delay(2000);
-  p.start(300,0.25,4,1000);
-  delay(5000);
-  Serial.printf("New Pattern\n");
-  p.start(200,0.2,2,200);
 }
 
 void loop(){
-  p.check();
 }