add debug example

examples/BasicExamplePlusDebug/BasicExamplePlusDebug.ino

@@ -0,0 +1,47 @@
+#include "BM64.h"
+#include <SoftwareSerial.h>
+
+#define TX_IND 7
+BM64 bm64(Serial, TX_IND);
+
+// For BM64 Debug. 
+// Please define BM64_DEBUG in BM64_Debug.h
+
+#define DEBUG_RX 10
+#define DEBUG_TX 11
+// variable name can't change.
+SoftwareSerial _swSerial(DEBUG_RX, DEBUG_TX);
+
+void onEventCallback(BM64_event_t *event){
+    // handle event
+    switch(event->event_code)
+    {
+    case BM64_EVENT_CALL_STATUS:
+        if(event->parameter[1] == INCOMING_CALL){
+            // Incoming Call
+        }else if(event->parameter[1] == IDLE){
+            // End call event
+        }
+        break;
+    case BM64_EVENT_DEVICE_STATE:
+        if(event->parameter[0] == 0x00){
+            // Power Off Event
+        }else if(event->parameter[0] == 0x02){
+            // Power On Event
+        }
+        break;
+    }
+}
+
+
+void setup() {
+    Serial.begin(19200);
+    // Start serial communication.
+    _swSerial.begin(19200);
+    bm64.setCallback(onEventCallback);
+}
+
+void loop() {
+    //Check UART Event
+    bm64.run();
+}