Combining GATT service and I2C Data

[Geass77]

Hi, I'm now trying to combine the i2C(Gyroscope) and Gatt service using nrf52840 (sdk15.3), but I can't understand how to add the service to my device,like service name:Gyroscope and than characteristic x,y,z, I can send the data with UART but I write the read function in loop. However,when I see the other examples,the loop just only   idle_state_handle() . How can I read the I2C data and than change the value to the service  ?

ps. Can I use the blinky example to develop my project or use example gatt_c?

[awneil]

See these tutorials on GATT Services and Characteristics - and how to do them with the Nordic SDK:

https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-services-a-beginners-tutorial

https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial

Where the data comes from, and how it is obtained  is irrelevant to the GATT Services and Characteristics 

[Geass77]

sorry,their are some defines in the our_service example like APP_ADV_DURATION, but in  sdk 15.3.0 , they are in  sdk_config, so can I just change the value in sdk_config?

[Amanda Hsieh]

Hi, 

Which example in the SDK15.3 are you referring to?

-Amanda H.

[awneil]

Geass77 said:

can I just change the value in sdk_config

In general, that is the whole point of the sdk_config.h file - it contains configurations specific to your project.

Each project has its own sdk_config.h file.