Arduino calls when device leaves bluetooth range

Projects General Guidance
1

Hi! I am new to the forums. I joined because I needed somebodies help to code for a project I am working on. I am willing to pay for your assistance.

The project consists of an arduino uno, a GSM shield, a bluetooth shield, a battery pack, an on switch, and an off switch.

I want to make a simple device that calls a phone number when a device connected via bluetooth leaves the range of the shield (~36ft). The device should also automatically connect to the bluetooth device as soon as it enters the range.

I also want the device to send a text message to the phone number when the battery is low.

I have all of the necessary parts and connectors, and just need a bit of help with the programming. If you know what to do and how to do it, please send me a PM and we can work something out. I may also need help with the schematics.

2

It is possible to have two Arduinos automatically connect via Bluetooth

I guess the moving device will have to continuously send a known signal, and the device with the GSM board sends a message when it cannot verify the signal.

There are probably better ways of doing what you want to do without bluetooth.

3

I don't want to have two Arduinos connected at all. I want one Arduino connected to a phone via bluetooth. Once the phone leaves the bluetooth range of the Arduino, I want the Arduino to give the phone a call alerting it that it left the range. Thanks.

4

hackery21:
I want one Arduino connected to a phone via bluetooth.

Probably a phone problem, not an Arduino problem. If you do it smart, you probably won't need to make the phone call.

5

No, I want it to make the phone call to alert the person using the phone that they have left the range of the Arduino. Are you good with programming? I am willing to pay to have someone write the code. It should not be too difficult. Thanks.

6

Er, i dont have your answer, but reading your post.....

The arduino auto connects to the phone when the phone is in range. That shouldnt be too tough.
But when the phone gets out of bluetooth range (or drops bluetooth connection), the arduino is to call the phone to advise.

Ok, so if the arduino is to place a cell phone call, how is that done without an actual cellphone.

If the arduino had an wireless or ethernet shield, it could use an online service to place the call.

Just my thoughts.