QN9020 Start a timer and report the current time via bluetooth?

[inuyashaitb]

Hello everyone, I am a Computer Engineering Senior Major and am currently working on a project for my senior design, but I am running into snags.

I'm sorry if this is a dumb question, but I am completely new to hardware programming, but I am experienced in writing C/C++/JAVA/ .NET. I have read all of the included documentation for the QN9020 and I can get the demo projects to work perfectly, but I am having the most difficult time trying to modify it to reach my needs. What I would like to do is create a Timer that is triggered by sending a certain value from my phone to the QN9020 and have that timer be reported back to the phone and run a function after a certain amount of time has passed.

Any help would be appreciated!

Thank you, with regards, Marshall.

[yijunma · Accepted solution]

NXP buyed Quintic, but it seems this forum has no QN902X topics or no active developers here.

For your question, you can refer to the below demo projects:

QBlue\QN9020\QBlue-1.3.9\Projects\BLE\qpps ;

QBlue\QN9020\QBlue-1.3.9\Projects\Driver\rtc ;

QBlue\QN9020\QBlue-1.3.9\Projects\Driver\timer ;

[inuyashaitb]

Thank you. That was actually extremely helpful.

Now i actually have another question... How would I go about creating a bond with a particular device?

Basically I need the QN9020 to have a PIN to connect to it. Then, once connected, the two devices would 'pair' with each other, not allowing the QN9020 to publicly broadcast its connection anymore?

[yijunma]

different with classic bluetooth, BLE peripheral must advertise itself to let the centro device to scan it.

for the bonding issue, it is complicated.

1, CFG_SECURITY_ON config

2, set access permission of Characteristic Value and Characteristic Configuration Descriptor to PERM_RIGHT_AUTH

3, check QN_IO_CAP_ABILITY and QN_SEC_MODE_LEVEL

[inuyashaitb]

Is there a way to get the MAC / BT address of the connected device? i think i will just do a save and comparison to see if its the same one as before.