Thingy:91 nRF52840 board controller software.

[Juha]

Hi,

I would like to add some custom sensor for Thingy:91 board. I notice that there are no GPIOs available to connect sensor to nRF9160 SiP? So do I need to connect the custom sensor to nRF52840 ? connector P6?

If that is the case, can I find the current nRF52840 board controller source code somewhere? Or is there any template code that I could use?

Best Regards

Juha

[Håkon Alseth]

Hi,

 

 

I would like to add some custom sensor for Thingy:91 board. I notice that there are no GPIOs available to connect sensor to nRF9160 SiP? So do I need to connect the custom sensor to nRF52840 ? connector P6?

Almost all GPIOs are in use, seen from the nRF9160's view, so if you plan to do specific development and require external GPIOs, I'd recommend that you use the nRF91-DK.

There's a couple of test points (with unused GPIOs) you can hook onto as described in this thread, but that can be mechanically unstable:

https://devzone.nordicsemi.com/f/nordic-q-a/51355/inputs-via-gpio-on-the-thingy-91

If that is the case, can I find the current nRF52840 board controller source code somewhere? Or is there any template code that I could use?

The nRF52840 in the thingy:91 (named nrf52840_pca20035) has no direct function as a board controller, but it does this in the nRF91-DK.

52840's job in thingy:91 is to be a USB-UART bridge for debugging purposes, and firmware upgrading. This is the project for the firmware that is currently running on the nrf52840_pca20035:

https://github.com/NordicPlayground/fw-nrfconnect-nrf/tree/master/samples/usb/usb_uart_bridge

 

Kind regards,

Håkon

[Juha]

Thanks for the fast reply. I have already made some custom project for the nRF9160 for some demo purpose. I wanted to make same kind of project for Thingy:91 because of the board size. I will check the example. Thanks.

Best Regards

Juha