Added chip variant function

Author: Colbix

src/DFPlayerMini_Fast.cpp

@@ -77,6 +77,24 @@ bool DFPlayerMini_Fast::begin(Stream &stream, bool debug, unsigned long threshol
 
 
 
+/**************************************************************************/
+ /*!
+	 @brief  Set the chip variant status and delay.
+	 @param    delayMs
+			   The delay in milliseconds for the send stack to allow the 
+			   chip variant to process commands. The default is 1000
+			   (1 second).
+ */
+ /**************************************************************************/
+ void DFPlayerMini_Fast::setChipVariant(unsigned long delayMs = 1000)
+ {
+	 isChipVariant = true; // Set the chip variant status for Mp3 Chip MH2024K-16SS
+	 stackDelay = delayMs; // Set the delay in milliseconds
+ }
+
+
+
+
 /**************************************************************************/
  /*!
 	 @brief  Play the next song in chronological order.
@@ -924,15 +942,26 @@ void DFPlayerMini_Fast::findChecksum(stack& _stack)
  /**************************************************************************/
 void DFPlayerMini_Fast::sendData()
 {
+	// Wait for spacing only if chip variant
+	if(isChipVariant)
+	{
+		delay(stackDelay);
+	}
 	_serial->write(sendStack.start_byte);
 	_serial->write(sendStack.version);
 	_serial->write(sendStack.length);
 	_serial->write(sendStack.commandValue);
 	_serial->write(sendStack.feedbackValue);
 	_serial->write(sendStack.paramMSB);
 	_serial->write(sendStack.paramLSB);
-	_serial->write(sendStack.checksumMSB);
-	_serial->write(sendStack.checksumLSB);
+
+    // Send checksum only if not chip variant
+    if (!isChipVariant)
+	{
+        _serial->write(sendStack.checksumMSB);
+        _serial->write(sendStack.checksumLSB);
+    }
+
 	_serial->write(sendStack.end_byte);
 
 	if (_debug)
@@ -1198,8 +1227,14 @@ void DFPlayerMini_Fast::printStack(stack _stack)
 	Serial.print(_stack.feedbackValue, HEX); Serial.print(' ');
 	Serial.print(_stack.paramMSB, HEX);      Serial.print(' ');
 	Serial.print(_stack.paramLSB, HEX);      Serial.print(' ');
-	Serial.print(_stack.checksumMSB, HEX);   Serial.print(' ');
-	Serial.print(_stack.checksumLSB, HEX);   Serial.print(' ');
+
+    // Print checksum only if not chip variant
+    if (!isChipVariant)
+	{
+        _serial->write(sendStack.checksumMSB);
+        _serial->write(sendStack.checksumLSB);
+    }
+
 	Serial.println(_stack.end_byte, HEX);
 }
 

src/DFPlayerMini_Fast.h

@@ -149,6 +149,7 @@ class DFPlayerMini_Fast
 
 
 	bool begin(Stream& stream, bool debug=false, unsigned long threshold=100);
+	void setChipVariant(unsigned long delayMs = 1000);
 
 	void playNext();
 	void playPrevious();
@@ -212,6 +213,8 @@ class DFPlayerMini_Fast
 private:
 	FireTimer timoutTimer;
 	unsigned long _threshold;
+	bool isChipVariant; // Flag indicating if the current chip is the MH2024K-16SS variant
+	unsigned long stackDelay; // Delay for chip variant due to slower processing speed of the MH2024K-16SS
 
 	/** MP3 response packet parsing states */
 	enum fsm {