1.- Android to Arduino.
- When write 0 in TextBox and click Send button, Arduino LED13 is OFF
- When write 1 in TextBox and click Send button, Arduino LED13 is ON
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2.- Arduino to Android.
- When click boton2 in Arduino, bluetooth send "Hola amigo" to Android.
- When click boton3 in Arduino, bluetooth send, "Me llamo Juan" to Android.