spelling mistakes/readme corrections

FM6126A.md

@@ -1,46 +1,29 @@
 ## The mystery of control registers for FM6126A chips
 
   
+The only available Datasheet for this chips is in Chinese and does not shed a light on what those two control regs are.
 
-Datasheet for this chis chip is in chineese and does not shed a light on what those two control regs are.
+An excellent insight could be found here https://github.com/hzeller/rpi-rgb-led-matrix/issues/746#issuecomment-453860510
-
-An excellent insight could be found here
-
-https://github.com/hzeller/rpi-rgb-led-matrix/issues/746#issuecomment-453860510
 
   
 
-
+So there are two regs in this chip - **REG1** and **REG2**,
-So there are two regs - **REG1** and **REG1**,
-
 one could be written with 12 clock pusles (and usually called reg12, dunno why :))
-
+the other one could be written with 13 clock pulses (and usually called reg13, dunno why :))
-the other one could be written with 13 clock pusles (and usually called reg13, dunno why :))
   
 
-
+I've done some measurmens on power consumption while toggling bits of **REG1** and it looks that it could provide a fine grained brighness control over the entire matrix with no need for bitbanging over RGB or EO pins.
-So I've done some measurmens on power consumption while toggling bits of **REG1** and it looks that it could provide a fine grained brighness control over matrix.
-
 There are 6 bits (6 to 11) giving an increased brighness (compared to all-zeroes) and 4 bits (2-5) giving decreased brighness!!!
+Still unclear if FM6112A brightness control is internally PWMed or current limited, might require some poking with oscilloscope.
 
-  
+So it seems that the most bright (and hungry for power) value is bool REG1[16] = {0,0,0,0,0, 1,1,1,1,1,1, 0,0,0,0,0}; and not {0,1,1,1,1, 1,1,1,1,1,1, 1,1,1,1,1} as it is usually used.
-
-So it seems that the most bright (and hungry for power) value is
-
-bool REG1[16] = {0,0,0,0,0, 1,1,1,1,1,1, 0,0,0,0,0}; and not {0,1,1,1,1, 1,1,1,1,1,1, 1,1,1,1,1} as it is usually used.
-
 I'm not sure about bit 1 - it is either not used or I was unable to measure it's influence to brightness/power.
 
-  
+Giving at least 10 bits of hardware brightness control opens pretty nice options for offloading and simplifiyng matrix output. Should dig into this more deeper.
-
-Giving at least 10 bits of hardware brightness control opens pretty nice options for offloading. Should dig into this more deeper.
-
-  
 
 Here are some of the measurments I've took for 2 64x64 panels filled with white color - reg value and corresponding current drain in amps.
   
 
-
 |REG1 |bit value|Current, amps |
 |--|--|--|
 |REG1| 0111111 00000| >5 amps|

README.md

@@ -29,7 +29,7 @@ By default the pin mapping is as follows (defaults defined in ESP32-HUB75-Matrix
 |  R1   G1  |    R1  -> IO25      G1  -> IO26
 |  B1   GND |    B1  -> IO27
 |  R2   G2  |    R2  -> IO14      G2  -> IO12
-|  B2   GND |    B2  -> IO13
+|  B2   E   |    B2  -> IO13      E   -> N/A	(required for 1/32 scan panels, like 64x64. Any available pin would do, i.e. IO32 )
 |   A   B   |    A   -> IO23      B   -> IO19
 |   C   D   |    C   -> IO 5      D   -> IO17
 | CLK   LAT |    CLK -> IO16      LAT -> IO 4
@@ -52,7 +52,7 @@ However, if you want to change this, simply provide the wanted pin mapping as pa
 #define B_PIN   22 
 #define C_PIN   5
 #define D_PIN   17
-#define E_PIN   -1
+#define E_PIN   -1	// required for 1/32 scan panels, like 64x64. Any available pin would do, i.e. IO32
           
 #define LAT_PIN 4
 #define OE_PIN  15
@@ -113,6 +113,8 @@ By default you should not need to change / set the brightness setting as the def
 
 The value to pass 'setPanelBrightness' must be a value less than MATRIX_WIDTH. For example for a single 64x32 LED Matrix Module, a value less than 64. However, if you set the brightness too high, you may experience ghosting. 
 
+Also you may use method `setPanelBrightness8(x)`, where x is a uint8_t value between 0-255. Library will recalculate required brightness level depending on matrix width (mostly useful with FastLED-based sketches).
+
 Example:
 
 ```
@@ -122,6 +124,9 @@ void setup() {
     matrix.setPanelBrightness(16); // Set the brightness. 32 or lower ideal for a single 64x32 LED Matrix Panel.
     matrix.clearScreen(); // You must clear the screen after changing brightness level for it to take effect.
 
+    // or another way
+    matrix.setPanelBrightness(192); // Set the brightness to about 3/4 (192/256) of maximum.
+    matrix.clearScreen(); // You must clear the screen after changing brightness level for it to take effect.
 }
 
 ```

examples/AuroraDemo/AuroraDemo.ino

@@ -71,7 +71,6 @@ void setup()
   listPatterns();
 
 
-  //patterns.setPattern(0); //   // simple noise
   patterns.moveRandom(1); // start from a random pattern
 
   Serial.print("Starting with pattern: ");
@@ -92,7 +91,6 @@ void loop()
        //patterns.move(1);
        patterns.start();  
        
-       
        Serial.print("Changing pattern to:  ");
        Serial.println(patterns.getCurrentPatternName());