![]() I defined a Serial Port with the name Blue on pin number 2 and pin number 3 of the Arduino. So that’s the reason I added the SoftwareSerial.h header file. You can always define other Serial Ports using the SoftwareSerial library. The Arduino’s default Serial Port should only be used for debugging purposes. As I always say never use these pins for communication with other devices. If you want to learn how to make a schematic and PCB then watch my tutorial.Īs you know my friends in Arduino we have only one Serial port which is available on pin number 0 and pin number 1. This is a very basic circuit diagram designed in CadeSoft Eagle 9.1.0 version. HC-05 Bluetooth Module with Arduino Circuit Diagram: Because we can only design a good android application if we know exactly for what purpose we are making this application. My recommendation is first you should follow some basic tutorials and then you can resume from here.īefore we start the android app development, first of all, I would like to explain the circuit diagram and Arduino programming. Otherwise It can be really confusing for you. Before you follow this tutorial you should have some basic knowledge of how to use the Android studio.
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