Inserting nrf52840 dongle to the android phone

[Luke_123]

Hi,

Is it possible to communicate with the nrf52840 dongle from an android application via USB port ?

That is, nrf52840 dongle will be inserted to the android phone's usb port using an usb converter, and android app will try to send some commands to the dongle via this interface. The dongle will perform actions based on the received commands. 

Please note that I do not want a ble connection between phone and the dongle for some reason.

Is this achievable ?

[Amanda Hsieh]

Hi, 

It might need something like USB On-The-Go to connect the Android phone and nRF52840 dongle. You might need this sample to receive commands on the nRF52840 dongle. As for the Android side, you have to handle it by yourself. 

Regards,
Amanda H.

[Luke_123]

Okay, if I connect the nrf52840 dongle to the phone via USB OTG, can the dongle communicate to the phone (an android app will be running) via USB CDC ACM example firmware ?

[Amanda Hsieh]

I'm unsure how the Android phone supports that USB communication port as the PC. As I said, you have to handle it by yourself. You should test with a PC and then move to the Android phone.