Connecting two nRF52832 devices and phone together

[phippstech]

Hi, 

I'm developing a system where I have a two button "remote" and connecting to movable part that plays sounds. My plan was to have a nRF52 in each of the parts. So "button1" will play the sounds and "button2" will snap a picture on the phone. Is this possible? Here are the two ways I thought to set up such a system:

1. The remote is the central device and the phone and movable part are peripherals

2. The movable part is the central device and it is responsible for the sounds and moving as well as relaying that the phone needs to take a photo when "button2" is pressed on the remote.

Please let me know if either are possible. I want to avoid using a RF remote system because another nRF52840 would be cheaper and will allow us to have smaller board. 

[JONATHAN LL]

If i understand correctly you have two devices and on controller, a smart phone that you want to control remotely, and then you have a device that plays a sound and a device that is the remote controller consisting of two buttons.

So the remote controller has one button that when pressed makes makes one device play a sound, and then another button that when pressed makes the smart phone take a picture.  

I belive at least option 1 is feasible. I am note sure what is imply with a movable device... is it a long distance or how does it move.. does it drive/fly on its own?

Regards,
Jonathan

[phippstech]

Hi Jonathan,

Thanks for the reply. 

You are correct, you have described the system perfectly.

As for the movable part, nRF on that system will allow a servo to move when the music is playing. This distance between the phone and the nRF52 in the movable part system will be 6 inches and the distance between them and the remote control portion will be no more than 30 feet (2 feet in the most used case).

Anything in the SDK I should start with? or any soft devices I need to download before I go down this path?

[JONATHAN LL]

Then i guess that the ble_app_blinky is of use since it uses the button service. If you want to play and store music also on the microcontroller then the only example we have i thin is the Thingy samples, and for the servo control there is the PWM sample.

Regards,
Jonathan

[phippstech]

Thanks for those starting points! One last question, any thing in the SDK I need to look for in regards to the central/peripherals aspect of the project?

[JONATHAN LL]

I don't think there us anything specific that you need to look for in the SDK but reading and testing our examples might be a good start for the development.

Regards,
Jonathan