Bluetooth connection.

bluetooth_pairing.ino

@@ -0,0 +1,34 @@
+#include <M5Core2.h>
+#include "BluetoothSerial.h"
+
+BluetoothSerial SerialBT;
+
+void setup() {
+   SerialBT.begin("M5Stack-Vojta"); //Bluetooth device name
+   M5.begin();
+}
+
+void loop() {
+   if (SerialBT.available()) {
+     char ch=SerialBT.read();
+     if(ch=='a' || ch=='A')
+        M5.Lcd.fillScreen(WHITE);
+     if(ch=='b' || ch=='B')
+        M5.Lcd.fillScreen(RED);
+     if(ch=='c' || ch=='C')
+        M5.Lcd.fillScreen(GREEN);
+     if(ch=='d' || ch=='D')
+        M5.Lcd.fillScreen(BLUE);        
+   }
+   M5.update();   // update button state
+   if(M5.BtnA.isPressed()) {
+      SerialBT.println("Key A");
+   }
+   if(M5.BtnB.isPressed()) {
+      SerialBT.println("Key B");
+   }
+   if(M5.BtnC.isPressed()) {
+      SerialBT.println("Key C");
+   }
+   delay(100);
+}