Added PWM properties for ESP32 ledcWrite.

CytronMotorDriver.cpp

@@ -1,78 +1,109 @@
 #include "CytronMotorDriver.h"
 
+// setting PWM properties
+const int freq = 5000;
+const int ledChannel = 0;
+const int ledChanne2 = 1;
+const int resolution = 8;
+
 CytronMD::CytronMD(MODE mode, uint8_t pin1, uint8_t pin2)
 {
       _mode = mode;
       _pin1 = pin1;
       _pin2 = pin2;
 
+#if defined(ARDUINO_ARCH_ESP32)
+
+      // configure PWM functionalitites
+      ledcSetup(ledChannel, freq, resolution);
+
+      // attach the channel to the GPIO to be controlled
+      ledcAttachPin(_pin1, ledChannel);
+
+      ledcWrite(ledChannel, 0);
+
+      switch (_mode)
+      {
+      case PWM_DIR:
+            pinMode(_pin2, OUTPUT);
+            digitalWrite(_pin2, LOW);
+            break;
+      case PWM_PWM:
+            ledcSetup(ledChanne2, freq, resolution);
+            ledcAttachPin(_pin2, ledChanne2);
+            ledcWrite(ledChanne2, 0);
+            break;
+      }
+
+#else
       pinMode(_pin1, OUTPUT);
       pinMode(_pin2, OUTPUT);
 
       digitalWrite(_pin1, LOW);
       digitalWrite(_pin2, LOW);
-}
+#endif
 
-void CytronMD::setSpeed(int16_t speed)
-{
-      // Make sure the speed is within the limit.
-      if (speed > 255)
-      {
-            speed = 255;
-      }
-      else if (speed < -255)
+      void CytronMD::setSpeed(int16_t speed)
       {
-            speed = -255;
-      }
+            // Make sure the speed is within the limit.
+            if (speed > 255)
+            {
+                  speed = 255;
+            }
+            else if (speed < -255)
+            {
+                  speed = -255;
+            }
 
-      // Set the speed and direction.
-      switch (_mode)
-      {
-      case PWM_DIR:
-            if (speed >= 0)
+            // Set the speed and direction.
+            switch (_mode)
             {
+            case PWM_DIR:
+                  if (speed >= 0)
+                  {
 #if defined(ARDUINO_ARCH_ESP32)
-                  ledcWrite(_pin1, speed);
+
+                        ledcWrite(ledChannel, speed);
 #else
-                  analogWrite(_pin1, speed);
+                        analogWrite(_pin1, speed);
 #endif
 
-                  digitalWrite(_pin2, LOW);
-            }
-            else
-            {
+                        digitalWrite(_pin2, LOW);
+                  }
+                  else
+                  {
 
 #if defined(ARDUINO_ARCH_ESP32)
-                  ledcWrite(_pin1, -speed);
+                        ledcWrite(ledChannel, -speed);
 #else
-                  analogWrite(_pin1, -speed);
+                        analogWrite(_pin1, -speed);
 #endif
 
-                  digitalWrite(_pin2, HIGH);
-            }
-            break;
+                        digitalWrite(_pin2, HIGH);
+                  }
+                  break;
 
-      case PWM_PWM:
-            if (speed >= 0)
-            {
+            case PWM_PWM:
+                  if (speed >= 0)
+                  {
 #if defined(ARDUINO_ARCH_ESP32)
-                  ledcWrite(_pin1, speed);
-                  ledcWrite(_pin2, 0);
+                        ledcWrite(ledChannel, speed);
+                        ledcWrite(ledChanne2, 0);
 #else
-                  analogWrite(_pin1, speed);
-                  analogWrite(_pin2, 0);
+                        analogWrite(_pin1, speed);
+                        analogWrite(_pin2, 0);
 #endif
-            }
-            else
-            {
+                  }
+                  else
+                  {
 #if defined(ARDUINO_ARCH_ESP32)
-                  ledcWrite(_pin1, 0);
-                  ledcWrite(_pin2, -speed);
+                        ledcWrite(ledChannel, -speed);
+                        ledcWrite(ledChanne2, 255);
 #else
-                  analogWrite(_pin1, 0);
-                  analogWrite(_pin2, -speed);
+                        analogWrite(_pin1, -speed);
+                        analogWrite(_pin2, 255);
 #endif
+                  }
+                  break;
             }
-            break;
       }
-}

library.properties

@@ -1,5 +1,5 @@
 name=Cytron Motor Drivers Library
-version=1.0.1
+version=1.1.0
 author=Cytron Technologies Sdn Bhd <[email protected]>
 maintainer=Cytron Technologies Sdn Bhd <[email protected]>
 sentence=Library for Cytron Motor Drivers.