i need a help for programming , i2c programming for my project . to transfer the data from temperature sensor via phone using ble

[virigo]

Hi.......

i am student , i am doing a project based on temperature. i want transfer data from temperature sensor to phone via using NRF connect . can you help me ? how to write a program where should i start ?which BLE peripheral can i use ? suggest me some idea 

[Varun]

As a starting point, you can have a look at the ble_app_hts (Health Thermometer Service) which is included in the nrf52 sdk inside the ble_peripherals folder. 

Regarding the temperature sensor, you'll have to implement the logic to read the data from the registers of the temperature sensor

As a starting point for that you can use the twi_sensor example given in the nrf sdk inside the peripherals folder. (TWI is same as I2C but they don't use the same abbreviation for legal reasons).

Then you can integrate the two applications and test the functionality using nrf connect or the nrf toolbox app.

[virigo]

thank you, one more i am beginner to the nrf , programming also ,whether  it will be easy ?if i started with twi sensor and later hts . 

[Varun]

Then I suggest, you start with the ble tutorials to understand basic ble concepts, and build a simple application.

https://devzone.nordicsemi.com/tutorials/b/bluetooth-low-energy/posts/ble-advertising-a-beginners-tutorial

https://devzone.nordicsemi.com/tutorials/b/bluetooth-low-energy/posts/ble-services-a-beginners-tutorial

https://devzone.nordicsemi.com/tutorials/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial

Once you get the hang of how an application is written, you can start using the examples directly for your application. 

If you get stuck somewhere, there's help available here.

[awneil]

virigo said:

i am beginner to the nrf , programming also

Previously, you said you "have experience in microcontroller" and were, "good in c programming".

https://devzone.nordicsemi.com/f/nordic-q-a/39748/i-couldn-t-able-to-understand-the-nrf-twi-sensor-program/154754#154754

BLE is really an advanced topic - it sounds like you first need some more time getting the basics properly established.

The Basics are not really specific to a particular chip:

https://www.avrfreaks.net/comment/1138166#comment-1138166

https://www.avrfreaks.net/comment/2079906#comment-2079906

For I2C, you will need to understand how I2C works.

It is a well-established and widely-used bus - there is plenty of documentation available online; eg,

The I2C specification: https://www.nxp.com/docs/en/user-guide/UM10204.pdf

https://en.wikipedia.org/wiki/I%C2%B2C

learn.sparkfun.com/.../all

http://i2c.info/

etc, etc, ...

[virigo]

thank you so much