Possible to program NRF52840 Dongle without using NRF Connect Desktop

[Sash]

I like to program NRF52840 Dongle without using NRF Connect Desktop (i.e, Normally we develop application program using some IDE) Can i develop application program using NRF52840 Dongle 

[Øyvind]

Hello,

Please have a look at the nRF52840 Dongle tutorial. As the dongle does not have a built-in Segger J-Link OB Debugger (see this thread), you must use NRF Connect for Desktop or nrfutil to program the device on the dongle. nRF Util is a Python package and command-line utility that supports Device Firmware Updates (DFU) and cryptographic functionality. 

If you need to debug, you should get the nRF52840-DK which has an onboard Segger J-Link Debugger.

More information in the documentation for the nRF52840 Dongle here, and the subchapter Programming.

Can i develop application program using NRF52840 Dongle 

 Not sure what you mean, but we have some examples that work with the dongle. In our SDK we have working examples for the dongle (pca10059):

..\examples\ble_peripheral\ble_app_blinky

..\examples\ble_peripheral\ble_app_hrs

..\examples\connectivity\ble_connectivity

..\examples\peripheral\blinky

..\examples\peripheral\cli

Hope this helps on your way.

Kind regards,
Øyvind