Bluetooth simple project

Projects General Guidance
1

Hello ,
I want to start a project with bluetooth.

I want to build a button that when I prees on it I will light a LED on the ARDUINO
(all of this in bluetooth )

does it mean I need 2 ARDUINO (one in each side)?
also which BlueTooth would you recommand?

Thanks ,

2

You can use your phone as switch and a arduino and HC_05(chip bluetooth) bluetooth for control.

or else you will need to use two arduino micro controller and HC-05 bluetooth. Interfacing is simple this bluetooth communicate with serial communication.

3

this I know ,
but I want to use just a button - and not phone.

4

You should be able to do this with one Arduino whereby the two HC-05s are configured to auto-connect and that on the Arduino sends a pin high to confirm the connect. The button is simply in the power supply to the other HC-05.

5

O.K , I understand
any starter code for this maybe? :slight_smile:

Thanks ,

6
7

Thanks ,
I ahve just bought 2 HC-05s ,I will get them next week (I hope) and I will start
if I will have more question I will ask

Thanks again ,