Do i need to make a service to work with a few received bytes from an advertising packet?

[GeorgeM]

Hi all.

Just wondering if i need to go through the tutorials on making a service if i just want to read a few bytes in an advertising beacon.

I'm a little lost on figuring out what function i need to use or what library looks for a particular device and then getting that devices advertising manufacturer data into memory to work with.

I'd just like to have two devices constantly advertising and constantly scanning and then updating a central with the connection details. similar to a beacon but they may need to connect and transfer data in the future.

[Nguyen Hoan Hoang]

First thing not to get confuse.  A peripheral device can advertise but cannot scan or initiate a connection.  A central device can scan and initiate a connection but cannot advertise.  However there is a possibility of mixed device (dual role) which combines both peripheral & central.

since you are not very familiar with the SDK.  The easiest way to get started with a library that encapsulate all the SDK function calls for you so you can achieve that with a few lines of code.  See these blogs.

https://devzone.nordicsemi.com/b/blog/posts/writing-ble-firmware-with-a-few-lines-of-code

https://devzone.nordicsemi.com/b/blog/posts/writing-ble-firmware-with-a-few-lines-of-code-part

http://embeddedsoftdev.blogspot.ca/2018/02/bluetooth-le-with-nordic-nrf51-nrf52.html