Thingy91 Simple UART Example Between NRF52840 and NRF9160

[David]

I am developing for a Thingy91 and NRF9160 DK

NCS v 1.9.1

I was initially using the LTE_BLE_Gateway sample with the NRF52840 running the hci_lpuart sample. and that appears to work well, but we want more control over 52840 chipset.

Is it possible to just have raw UART between the NRF9160 and NRF52840 (without having to use HCI).?

I keep getting errors in H4 even if i dont have any HCI stuff enabled or in my prj.conf.

I just want to do BLE stuff on the 840 (but be controlled by the 840) and then filter / store the beacon reads. and then occasionally stream the data over to the NRF9160 to be sent over MQTT..

Regards,

David Hutchinson

[ovrebekk]

Hi David

It should be fine to use a direct UART connection between the two devices, you just need to configure this equally in both chip so they can communicate properly. 

If you look at the LPUART sample you can see how you can implement an LPUART interface without running any higher level protocol like HCI on top, allowing you to send raw data. 

Best regards
Torbjørn