Update analogWrite.adoc

Added a table summarizing the Boards, PWM Pins and the frequencies.

Address the issue arduino#587

Author: animeshsrivastava24

Language/Functions/Analog IO/analogWrite.adoc

@@ -17,10 +17,23 @@ subCategories: [ "Analog I/O" ]
 
 [float]
 === Description
-Writes an analog value (http://arduino.cc/en/Tutorial/PWM[PWM wave]) to a pin. Can be used to light a LED at varying brightnesses or drive a motor at various speeds. After a call to `analogWrite()`, the pin will generate a steady square wave of the specified duty cycle until the next call to `analogWrite()` (or a call to `digitalRead()` or `digitalWrite()`) on the same pin. The frequency of the PWM signal on most pins is approximately 490 Hz. On the Uno and similar boards, pins 5 and 6 have a frequency of approximately 980 Hz.
+Writes an analog value (http://arduino.cc/en/Tutorial/PWM[PWM wave]) to a pin. Can be used to light a LED at varying brightnesses or drive a motor at various speeds. After a call to `analogWrite()`, the pin will generate a steady square wave of the specified duty cycle until the next call to `analogWrite()` (or a call to `digitalRead()` or `digitalWrite()`) on the same pin. 
+[options="header"]
+|================================================================================================================================================
+| Board                | PWM Pins                         | PWM Frequency                    
+| Uno, Nano, Mini      | 3, 5, 6, 9, 10 and 11                | 490 Hz, exception pin 5 and 6(980 Hz)
+| Mega                 | 2 - 13 and 44 - 46               | 490 Hz, exception pin 4 and 13(980 Hz)
+| Leonardo, Micro, Yún | 3, 5, 6, 9, 10 and 11                | 490 Hz, exception pin 3 and 11(980 Hz)                
+| Uno WiFi Rev.2       | 3, 5, 6, 9 and 10                | 490 Hz            
+| MKR boards           | 0, 1, 2, 3, 4, 5, 6, 7, 8, 10, A3 - or 18 -, A4 -or 19                           | 732 Hz                                
+| Zero                 | 3, 4, 5, 6, 8, 9, 10, 11, 12, 13 | 730 Hz
+| Due                  | 3, 5, 6, 9, 10 and 11                | 1000 Hz                   
+| 101                  | 3, 5, 6 and 9                      | 490 Hz                                
+|================================================================================================================================================
+
+
 [%hardbreaks]
-On most Arduino boards (those with the ATmega168 or ATmega328P), this function works on pins 3, 5, 6, 9, 10, and 11. On the Arduino Mega, it works on pins 2 - 13 and 44 - 46. Older Arduino boards with an ATmega8 only support `analogWrite()` on pins 9, 10, and 11.
-The Arduino DUE supports `analogWrite()` on pins 2 through 13, plus pins DAC0 and DAC1. Unlike the PWM pins, DAC0 and DAC1 are Digital to Analog converters, and act as true analog outputs.
+
 You do not need to call `pinMode()` to set the pin as an output before calling `analogWrite()`.
 The `analogWrite` function has nothing to do with the analog pins or the `analogRead` function.
 [%hardbreaks]