Nordic Blinky Profile to broadcast temperature sensor data

[jdelapena]

Hello, I'm a beginner with the BLE technology and nRF52 is a good tool to start with it.

Currently, I have a setup that allows a Raspberry Pi and an nRF52 to communicate with one another via BLE protocol.

In the raspberry pi side, I created a python script to toggle the on-board LED of the nRF52 as described by the Nordic Blinky Profile. Furthermore, I can also read the current status of the LED. I did this with the help of the nrfConnect app to monitor the values and characteristics of the service.

I just write the desired value the characterstic LED and read it. It is working fine.

Now, I wish to allow the nRF52 to transmit temperature sensor reading via BLE to the raspberry pi. This temperature sensor is connected to the nrf52 via I2C protocol.

My question is: is this possible? Can this be made by just using the Nordic Blinky Profile? How?

I made some initial study on the functions below but I still can't pinpoint on how to make this happen:

buttons_init();
ble_stack_init();
gap_params_init();
services_init();
advertising_init();
conn_params_init();

Thank you so much.

Best Regards, Jade

[Jørgen Holmefjord]

Hi,

With "Nordic Blinky Profile", do you mean the LED Button Service Server used by the BLE Blinky Application? This is not meant for transmitting temperature data.

You can take a look at the Health Thermometer Application, which use the Health Thermometer Service, or you can create your own custom service to transmitt the temperature value. More details about creating custom services can be found in the BLE tutorials in the tutorial section here at DevZone.

Best regards,

Jørgen