Added setPixel method

ObjectFLED.h

@@ -2,7 +2,9 @@
 	multiple LED display objects
 
 	Copyright (c) 2024 Kurt Funderburg
-
+	2025 Clément SAILLANT
+		=> added setPixel method
+		
 	Permission is hereby granted, free of charge, to any person obtaining a copy
     of this software and associated documentation files (the "Software"), to deal
     in the Software without restriction, including without limitation the rights
@@ -127,6 +129,8 @@ public:
 
 	uint32_t getBalance() { return colorBalance; }
 
+	void setPixel(uint32_t index, uint8_t r, uint8_t g, uint8_t b, uint8_t w);
+
 private:
 	static void isr(void);
 
@@ -180,4 +184,4 @@ void fadeToColorBy(void*, uint16_t, uint32_t, uint8_t);
 //Safe to specify -Y, -X corner, safe to draw a box which partially fits on LED plane.
 void drawSquare(void*, uint16_t, uint16_t, int, int, uint32_t, uint32_t);
 
-#endif
+#endif

OjectFLED.cpp

@@ -55,6 +55,9 @@ GOIO9List = { 2, 3, 4, 5, 29, 33, 48, 49, 50, 51, 52, 53, 54 }  //6 top, 7 botto
 * Set DSE=3, SPEED=0, SRE=0 on output pins per experiment & PJRC forum guidance
 * New default values for TH_TL, T0H, T1H, LATCH_DELAY to work with Audio lib and more LED types
 * Added wait for prior xmission to complete in destructor
+* CHANGES by Clément SAILLANT:
+* Added setPixel method
+* Added support for GRBW LED strips
 */
 
 #ifndef __IMXRT1062__
@@ -648,4 +651,13 @@ void drawSquare(void* leds, uint16_t planeY, uint16_t planeX, int yCorner, int x
 	}	//for y
 } // drawSquare()
 
-#endif // __IMXRT1062__
+void ObjectFLED::setPixel(uint32_t index, uint8_t r, uint8_t g, uint8_t b, uint8_t w) {
+	if (index < numbytes / 4) {
+		frameBuffer[index * 4] = r;
+		frameBuffer[index * 4 + 1] = g;
+		frameBuffer[index * 4 + 2] = b;
+		frameBuffer[index * 4 + 3] = w;
+	}
+}
+
+#endif // __IMXRT1062__