How to add Bluetooth connectivity to 3DR

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We're going to be adding Bluetooth connectivity to more 3dr items in the impending months, yet there's no compelling reason to hold up. At this moment you can include Bluetooth telemetry and setup yourself with modest outsider bluetooth modules. Uniting the APM and Pixhawk by means of Bluetooth is an incredible approach to do essential setup and mission arranging with your smart phone (Mac, PC or Linux) or Android telephone or tablet, without the need to convey and unite a 3dr radio and OTG link.  You're restricted to Bluetooth range (something like 50m), however for remote setup before launch, this works fine.  Mission Planner (Windows), APM Planner (Mac, Windows, Linux), Droidplanner and Andropilot (both Android) all backing Bluetooth connectivity.

This blog will demonstrate to you generally accepted methods to join two sorts of normally accessible Bluetooth modules (demonstrated above) to APM or Pixhawk.

The procedure comprises of three steps: 

1.       Configure the modules so they're running at 57600 baud

2.       Physically associating the modules to APM/Pixhawk

3.       Join by means of BT to your Android gadget or smart phone and a GCS application (match the module with your gadget)

Setup with RN-42 and RN-41 Bluetooth modules

Associate the module with a Xtreambee connector board and this link

TO GET THE COMMAND PROMPT

You can utilize any serial terminal program (the terminal in the Arduino IDE is demonstrated), however there are a couple of things you have to do:

1.       You must enter summon mode inside 60 seconds of controlling up the board

2.       The board can't be now remotely matched with a gadget, (for example, your telephone or tablet)

3.       The default baud rate is generally 115200. We have to change that to 57600 baud. Yet for the first association, to get the charge immediate for this transform, we're going to begin at 115200.

4.       In order to go to command mode, you have to select "No line ending" in your terminal system, then enter "$$$" [enter]. After that, the terminal program needs to be in "Newline" mode, as appeared. Insane, however that is the way Roving Networks set it up.

In first place, guarantee that your terminal baud rate is at 115200 and "No line endings" is chosen. At that point connect to your module and inside 30 seconds sort "$$$" [enter]. You ought to get the return message "CMD".

Once you have that, switch your terminal program to “Newline” for the rest of the commands.

Now you can enter charges. To switch to a 57600k baud rate the command is "Su,57" (A full rundown of commands is here, despite the fact that you won't require them for this change). When you reboot the board, that baud change will produce results.

Well done! Right away you're primed to utilize it with APM/Pixhawk. See the bottom of the post for guidelines on the best way to utilize the GCS applications with Bluetooth.

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