Hi,
I’m making a robot that will be wireless. It will be the actual robot and a controller. I need two bluetooth modules (that come together) that communicate with each other. The robot and controller will both use an arduino uno. The controller will need to send basic instructions such as motorthree 34. It must also be able to recieve commands such as motorcurrentposition 45. Any idea what product does this?
The advantage to Bluetooth modules is that they do not have to come as pairs. Bluetooth technology is such that you have one “master” and one “slave”.
The “master” needs to be able to detect the slave and then pair with it. You should not have two slaves.
In robotics, the “master” tends to be connected to a computer, laptop, tablet or smart phone (or single board computer) and the slave is mounted to the robot.
If you just need two-way communication between two robots, you don’t need Bluetooth - it’s better to use two RF transceivers:
robotshop.com/en/data-telemetry.html