Communicating via Bluetooth

Trying to learn a bit of Bluetooth.

If I want to replace the serial cable from my laptop to the SSC-32, can I use the Bluetooth USB Module Mini (RB-Spa-335 from RobotShop) on the laptop and then connect the Bluetooth Modem - BlueSMiRF Silver (RB-Spa-588) the the RX/TX pins on the SSC-32? Then, are communications via a COM port on the laptop , just like the serial interface (I use a USB to Serial connector from Lynxmotion)? So that I don’t have to rewrite the communications in my code. Will this also support two way communications, because I read from the analog input?

dj

By the way, any suggestions on wireless transmission of audio (stereo)?

Indeed you can. Be sure to select the correct Tx / Rx pins on the SSC-32. You can get 5V / GND from one of the IO pins A to D.

You will need to pair the modules- which adds a step.

Yup

Simple (small) wireless microphone?

Belkin and Logitech make similar Audio Bluetooth receivers. But they require 5V and 180ma. Can I pull this much power from the SSC-32?

reviews.cnet.com/home-entertainment/belkin-bluetooth-music-receiver/4505-6449_7-34505053-2.html

No - you’ll need to split the power from the battery. Looks like a nice product though.

Yes it should be possible.
You will need to connect your MEGA to the PC and connect whatever wireless module to the MEGA’s Serial 1,2, or 3. Not to Serial 0. Because the the USB will be using Serial 0.

If you try to draw 180mA from an onboard I/O pin (which can supply only about 40mA each), you risk frying the board. You need to ensure the power to that BT unit does not come from the ATMega chip but from another power supply. Not sure where the Arduino MEGA came into this?

Thanks Coleman,

I think the 40ma limit of the onboard regulator is the missing link.

dj

My apologies - I meant to write I/O pin (corrected in the reply) - the regulator itself can supply about 1.5A, but that is used to power the microcontroller and all the I/O pins etc.

Bluetooth allows users to connect to a wide range of devices at one time without cables, and potentially without actively initiating the connection. Bluetooth uses a flexible,multiple piconet structure for communication. It supports both point-to-point and multipoint connections for full-duplex networks. Please share some more details about the topic for view detail information.