Document about GAP and GATT BLE for Rapid IOT ?

[wichaitossamart]

 Hi,

Are there any document about GAP and GATT BLE on Rapid IOT for sensors ? I would like to connect Rapid IOT from ESP32.

Thank you

[estephania_mart]

Hello, 

Do you mean something like this? 

Creating a custom profile using NXP BLE stack – Server  

How to create a Custom Profile - Client 

If you look for further information regarding the BLE transmission protocol, I believe this link will also be helpful which it's some of the information available in the NXP knowledge-center.

Besides that, you can also check the Bluetooth® Low Energy Applications Developer’s Guide and the Bluetooth Low Energy API reference manual

Best regards, 

Estephania 

[yoursunny]

These document seems to be targeting the KW41 chip. However, there isn't any SDK examples for the KW41 ("import SDK examples" shows an empty list after selecting KW41).

I want to create GATT characteristics to report sensor readings.

How can I use BLE from K64 chip, with the factory KW41 firmware? Or, if I have to program the KW41, is there a "hello_world" for me to get started?

[theophileleroy]

There is a project for KW41Z but not as "Example project", you have to import it from the file system, it is located under SDK path at SDK_2.2_RapidIoT_MKW41Z4\boards\rpk_kw41z\rapid_iot_apps\rpk_kw41z_hybrid

This is the default application flashed in KW41Z

[estephania_mart]

Hello, 

As the KW41Z it's  running a host controlled interface you could send the commands to work with the network, I believe there are quite useful posts and examples in the community such as these: 

IDE 

https://community.nxp.com/thread/490773 

If you still have any doubt after reading those, just let me know. 

Regards, 

Estephania