We can only turn the backlight on or off, there's no RGB background LED for our display.

Author: aentinger

src/Braccio++.cpp

@@ -73,7 +73,7 @@ bool BraccioClass::begin(voidFuncPtr custom_menu)
   if (_bl.getChipID() != 0xCE) {
     return false;
   }
-  _bl.setColor(red);
+  _bl.on();
 
   int ret = _expander.testConnection();
 

src/lib/display/Backlight.cpp

@@ -35,75 +35,26 @@ void Backlight::end()
   powerDown();
 }
 
-void Backlight::setColor(RGBColors color)
+void Backlight::on()
 {
-  if(color == off) {
-  _blue = 0x00;
-  _green = 0x00;
-  _red = 0x00;
-  }
-
-  if(color == green) {
-  _blue = 0x00;
-  _green = 0xFF;
-  _red = 0x00;
-  }
-
-  if(color == blue) {
-  _blue = 0xFF;
-  _green = 0x00;
-  _red = 0x00;
-  }
-
-  if(color == red) {
-  _blue = 0x00;
-  _green = 0x00;
-  _red = 0xFF;
-  }
-
-  if(color == cyan) {
-  _blue = 0x20;
-  _green = 0x20;
-  _red = 0x00;
-  }
-
-  if(color == magenta) {
-  _blue = 0x20;
-  _green = 0x00;
-  _red = 0x20;
-  }
-
-  if(color == yellow) {
-  _blue = 0x00;
-  _green = 0x20;
-  _red = 0x20;
-  }
-
-  setColor(_blue, _green, _red);
-
+  setColor(0xFF, 0xFF, 0xFF);
 }
 
-void Backlight::setColor(uint8_t blue, uint8_t green, uint8_t red)
+void Backlight::off()
 {
-  // set rgb led current
-  writeByte(IS31FL3194_ADDRESS, IS31FL3194_OUT1, blue); //maximum current
-  writeByte(IS31FL3194_ADDRESS, IS31FL3194_OUT2, green);
-  writeByte(IS31FL3194_ADDRESS, IS31FL3194_OUT3, red);
-  writeByte(IS31FL3194_ADDRESS, IS31FL3194_COLOR_UPDATE, 0xC5); // write to color update register for changes to take effect
-
+  setColor(0, 0, 0);
 }
 
-/**************************************************************************************
- * PRIVATE MEMBER FUNCTIONS
- **************************************************************************************/
-
 // Read the Chip ID register, this is a good test of communication
 uint8_t Backlight::getChipID() 
 {
   uint8_t c = readByte(IS31FL3194_ADDRESS, IS31FL3194_PRODUCT_ID); // Read PRODUCT_ID register for IS31FL3194
   return c;
 }
 
+/**************************************************************************************
+ * PRIVATE MEMBER FUNCTIONS
+ **************************************************************************************/
 
 void Backlight::reset()
 {
@@ -134,6 +85,15 @@ void Backlight::init()// configure rgb led function
   writeByte(IS31FL3194_ADDRESS, 0x32, 0xFF); // Max power on led R (OUT 3)
 }
 
+void Backlight::setColor(uint8_t blue, uint8_t green, uint8_t red)
+{
+  // set rgb led current
+  writeByte(IS31FL3194_ADDRESS, IS31FL3194_OUT1, blue); //maximum current
+  writeByte(IS31FL3194_ADDRESS, IS31FL3194_OUT2, green);
+  writeByte(IS31FL3194_ADDRESS, IS31FL3194_OUT3, red);
+  writeByte(IS31FL3194_ADDRESS, IS31FL3194_COLOR_UPDATE, 0xC5); // write to color update register for changes to take effect
+}
+
 void Backlight::writeByte(uint8_t address, uint8_t subAddress, uint8_t data)
 {
   Wire.beginTransmission(address);

src/lib/display/Backlight.h

@@ -135,20 +135,6 @@
 // light intensity (fraction of current max)
 #define Imax_frac  0x80 // Imax_frac/256 * Imax = current
 
-/**************************************************************************************
- * TYPEDEF
- **************************************************************************************/
-
-enum RGBColors {
-  off = 0,
-  red = 1,
-  green = 2,
-  blue = 3,
-  yellow = 4,
-  magenta = 5,
-  cyan = 6
-};
-
 /**************************************************************************************
  * CLASS DECLARATION
  **************************************************************************************/
@@ -161,8 +147,10 @@ class Backlight
 
   void begin();
   void end();
-  void setColor(RGBColors color);
-  void setColor(uint8_t blue, uint8_t green, uint8_t red);
+
+  void on();
+  void off();
+
   uint8_t getChipID();
 
 
@@ -172,13 +160,9 @@ class Backlight
   void reset();
   void powerDown();
   void powerUp();
+  void setColor(uint8_t blue, uint8_t green, uint8_t red);
   void writeByte(uint8_t address, uint8_t subAddress, uint8_t data);
   uint8_t readByte(uint8_t address, uint8_t subAddress);
-
-  uint8_t _blue;
-  uint8_t _green;
-  uint8_t _red;
-
 };
 
 #endif