sensor
sensor
Do you have any prior experience with other microcontrollers?
Do you have any prior experience with 'C' programming in general?
Have you looked at the nRF52832 Product Page: https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52832 ?
Under 'Documentation', you will see links for getting started, etc ...
You should certainly get an NRF52-DK to start with - also mentioned on that page, under 'Development Tools & Software'
https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF52-DK
EDIT
All of Nordic's documentation can be found in the Infocenter: http://infocenter.nordicsemi.com/index.jsp
Note the 'Getting Started' links there, too.
There is a TWI Sensor Example in our SDK.