Cleaned up a bit and added an ESP8266 example.

.gitignore

@@ -0,0 +1,2 @@
+.development
+

examples/ESP8266/ESP8266.ino

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+/*
+  Example of using the WTV020SD16P chip on an ESP8266.
+
+  Connect the WTV020SD16P to your ESP8266 and define the pins below.
+
+  created 3 Nov 2019
+  by Thomas A. Hirsch
+
+  original version created by ELECTRONOOBS, 14 Oct 2016.
+
+  This example code is in the public domain.
+*/
+
+#include <Arduino.h>
+#include <WTV020SD16P.h>
+
+// Constants to define the used pins.
+static const uint8_t resetPin = D1; // The pin number of the reset pin.
+static const uint8_t clockPin = D6; // The pin number of the clock pin.
+static const uint8_t dataPin = D7; // The pin number of the data pin.
+static const uint8_t busyPin = D5; // The pin number of the busy pin.
+
+// Instance of WTV020SD16P
+WTV020SD16P wtv020sd16p(resetPin, clockPin,dataPin,busyPin);
+
+void setup() {
+
+}
+
+void loop() {
+  wtv020sd16p.asyncPlayVoice(0);
+
+  ////////////////////////////////////////////
+  //This are all the functions for the WTV020 module
+  //Use yours and delete the others
+  //Each function is explained
+  ///////////////////////////////////////////
+  //Plays synchronously an audio file. Busy pin is used for this method.
+  //wtv020sd15p.playVoice(0); // Will triggern the wdt (watch-dog timer) due to the use of sleep() on ESP8266!
+  //Plays asynchronously an audio file.
+  //wtv020sd16p.asyncPlayVoice(1);
+  //Plays audio file number 1 during 5 seconds.
+  //wtv020sd16p.asyncPlayVoice(1);
+  //delay(5000);
+  //Pauses audio file number 1 during 5 seconds.
+  //wtv020sd16p.pauseVoice();
+  //delay(5000);
+  //Resumes audio file number 1 during 5 seconds.
+  //wtv020sd16p.pauseVoice();
+  //delay(5000);
+  //Stops current audio file playing.
+  //wtv020sd16p.stopVoice();
+  //Plays synchronously an audio file. Busy pin is used for this method.
+  //wtv020sd16p.asyncPlayVoice(2);
+  //delay(2000);
+  //Mutes audio file number 2 during 2 seconds.
+  //wtv020sd16p.mute();
+  //delay(2000);
+  //Unmutes audio file number 2 during 2 seconds.
+  //wtv020sd16p.unmute();
+  //delay(2000);
+  //Stops current audio file playing.
+  //wtv020sd16p.stopVoice();
+  //Resets the chip - Will initially be called during construction.
+  //wtv020sd16p.reset();
+}

keywords.txt

@@ -5,7 +5,7 @@
 #######################################
 # Datatypes (KEYWORD1)
 #######################################
-WTV020SD16P	KEYWORD1
+WTV020SD16P	KEYWORD1		DATA_TYPE
 
 #######################################
 # Methods and Functions (KEYWORD2)