sparkfun RN-52 User Manual Download Page 13

That’s really the only setting that needs changed for this example.

Connect and Play

You are now ready to connect to your Bluetooth device and start streaming 
some music. Directions on how to pair and connect to the RN-52 can also 
be found in section 1.4 of the user guide.

*Note:

The quality of the audio will depend on which speakers you’ve 

attached. Testing the RN-52 with two 8

Ω

 stereo speakers worked great. 

However, without external amplification, the volume needs to be cranked up 
to achieve normal indoor volume. If you’re not satisfied with the volume, an 
external amp can be connected to the speaker pins. We recommend using 
the Audio Amplifier Kit.

Resources and Going Further

Wireless music, how sweet it is! We’ve only just scraped the surface of 
what the RN-52 is capable of. Try your hand at a project that incorporates 
the RN-52. You could create your own wireless headset. You could have a 
home theater system that can stream music from your mobile device. You 
could even connect an RN-52 to your car stereo and stream tunes from 
your phone as you travel. The possibilities are endless!

Page 13 of 14

Summary of Contents for RN-52

Page 1: ...ss signals into audio and vice versa The module is easy to configure with both ASCII commands and GPIO It can function as a stand alone module or it can be incorporated with a microprocessor to create...

Page 2: ...ou to configure the device over a UART serial connection This can also be used to send commands to the module from a microcontroller HFP HSP Support of both Hands Free Profile and Headset Profile mean...

Page 3: ...converts the radio waves sent from the transmitter device phone computer etc into electrical signals that can then be sent to the amplifier and then to your audio output speakers headphones When stre...

Page 4: ...oltage should be in the 3 0 3 6V range 2 GPIO Pins The RN 52 has eleven general purpose input output pins GPIO Many of these pins are reserved for special functions when the module is booted up and wh...

Page 5: ...lso be used to connect the module to an external microcontroller that issues commands and handles status updates 4 USB The USB lines are strictly used for device firmware update DFU mode Used in conju...

Page 6: ...e SPI lines 8 PCM Another option for communicating with the module is the Pulse Code Modulation PCM pins PCM is a way to digitally represent sampled analog signals This is done over an I S connection...

Page 7: ...kout Another option and the one that will be used in all the demos in this tutorial is to solder straight male headers to the breakout so that it can be used in a breadboard Note The RN 52 breakout is...

Page 8: ...red even if power is already supplied This is useful in headset hands free applications where a battery is attached to the module but the module doesn t need to be on all the time Hold down the moment...

Page 9: ...begin flashing alternately 4 Your device is now ready to make a connection Rather than connect over Bluetooth the connection will be made over the serial UART 5 Open a terminal window on the port you...

Page 10: ...lt name is RN52 xxxx where the last four numbers are the same last for numbers of the RN 52 s address If you only have one RN 52 you can change the name to whatever you d like If you have multiple RN...

Page 11: ...e RN 52 all terminate with a carriage return r not with a carriage return line feed If you keep seeing after every command you enter there should be a setting in your serial terminal to turn on just c...

Page 12: ...th the AVRCP buttons disabled Future versions of the firmware may differ Looking in the Command Specifications document we find this table EK is the Evaluation Kit Roving Networks sells and comes with...

Page 13: ...volume needs to be cranked up to achieve normal indoor volume If you re not satisfied with the volume an external amp can be connected to the speaker pins We recommend using the Audio Amplifier Kit Re...

Page 14: ...ll the hardware files and info This site is a handy Bluetooth Class of Device CoD generator For more tutorial action check out these related tutorials BC127 Audio Bluetooth Hookup Guide Interactive Ha...

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