I want to transfer data from my Smartphone to the RN4020 Bluetooth module. The easiest way is to use MLDP service. But I don't want to use it as CMD/MLDP pin is connected to +3.3V. And the only way to exit from the MLDP mode is power off/on.

That's why I'm looking for another way. It should be possible to create private service for that. But I don't know is it necessary to update/create the firmware for the private service?

Thank you very much.

  • 1
    \$\begingroup\$ This question appears to boil down to "how do I transfer data from a smartphone to a bluetooth module" and, I'm not sure it sits comfortably in EE.SE. \$\endgroup\$ – Andy aka Jul 8 '15 at 13:56

I'm able to do that now. I used the examples from the RN4020 Bluetooth Low Energy Module User’s Guide.

I didn't found the Android APP mentioned there. Instead I used the "nRF Master Control Panel" APP and it is working.


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