Bluetooth data transfer

Hi All,

I am trying to create a way of transferring information via bluetooth. I have tried various tutorials that utilise the bluetooth module HC-05 and an arduino uno board (I have both), but none seem to work for me.

My phone will happily pair with the bluetooth module however it won't execute any of the actions to show it is transferring data, such as turn on an LED.

I know I have wired the system correctly as I can initiate the turning on of the LED using the serial port of the arduino programming interface.

Any ideas?

Example tutorial

Have a look at the examples in serial input basics. They are simple reliable ways to receive data.

It is generally easiest to choose a scheme for receiving data and then arrange to send it in a compatible manner.

You have not described exactly what problem you are having.

Post your code if you want more help.

...R

Future_bound:
My phone will happily pair with the bluetooth module however it won't execute any of the actions to show it is transferring data, such as turn on an LED.

Pairing is not connecting. it is simply making up an address book for future use. You do not mention the phone app with which you intend to communicate with Arduino, but that is where the connection is made.

I know I have wired the system correctly as I can initiate the turning on of the LED using the serial port of the arduino programming interface.

This implies your code is kosher as well, and therefore your problem is just procedural. Assuming your phone is not an iPhone, you might find the following background notes useful

http://homepages.ihug.com.au/~npyner/Arduino/GUIDE_2BT.pdf
http://homepages.ihug.com.au/~npyner/Arduino/BT_2_WAY.ino