Add build configuration in Nrf connect in board select

[pushparaj]

In build configuration i need to select nordic board . i have been using fanstel bt840 use nRF52840 QIAA, ARM Cortex M4F, 64 MHz . what board i have to select in this ? or i have to go with customized board option .

[runsiv]

Hi

I would go for a custom board, I would also check if the module has an external LF crystal or not. DK uses an external crystal so if the module do not have it, you will need to enable the internal lf crystal to get most of our samples working. 

Edit: We also got a good guide in custom boards here

Regards

Runar