Simple experiment with Bluetooth and Arduino

This is one of the simplest and easiest experiments using Bluetooth module, Android and Arduino.

You just need an Android serial emulator, any type of emulator should work for this experiment. I recommend Blue term , you can find this application on your Android Market (Google Play).

In this experiment, as soon as you connect your phone to Arduino via Bluetooth, you will see numbers increasing from 0,1,2 and so on. While counting, if you enter a text or number on your phone, for example, ‘abc’ , you will get a message “Arduino received: abc” on your phone screen.

This experiment makes the use of a general and low cost Bluetooth moduleavailable at

 Connection between Arduino and Bluetooth Adapter:


5V- 5V

RX(Bluetooth) – TX (Arduino)

TX(Bluetooth) – RX(Arduino)


Basic experiment with Bluetooth and Arduino
In this image, you don’t see LED connected to Arduino. That is just optional. This image has been taken from the following video.

Bluetooth module experiment (5)


Arduino Sketch: LINK

Watch the following video:

Buy Similar Bluetooth Module from Amazon

Share This

Search Electronics Kits And Modules Available In Our Store