Thingy:91 I2C access - Where do I find the information required to create a 'NEW' I2C device?

[KevinA]

Where do I find the information required to create a 'NEW' I2C device and assign it to nRF5280 P0.26/27/28 as SCL/SDA/INT Thanks

[JONATHAN LL]

Hi Kevin,

There is some limitations to what is available in terms of IO on the Thingy 91, P6 connector interfaces with the nrf52 on the Thingy91 product. Is the plan to use an external sensors or interface?


Pin map overview: Nordic Semiconductor Infocenter

Connector overview: Nordic Semiconductor Infocenter

Using NCS you can add something like this in the .dts or .overlay file

&i2c {
	compatible = "nordic,nrf-twim";
	status = "okay";
	sda-pin = <26>;
	scl-pin = <27>;
};

And here is a list of what can be used at the same time:Nordic Semiconductor Infocenter

Here is a different Devzone case that might be of interest: Nordic DevZone (nordicsemi.com)

Regards,
Jonathan

[KevinA]

I'm a STM32/Freescale person, the dynamic communication devices is 'different' I have a nRF52840-Dongle I can play with to learn while I wait on a Thingy:91.

Thingy:91, once the nRF52840  I2C is setup and communicating with a sensor how do you get that data to the cloud?

FYI: It appears I need the nRF9160-DK to work with the nRF9160 since there is no access to anything (hardware) in the nRF9160 on the Thingy:91 - I'll post about an issue I ran into with nRF Connect,

Thanks for the pointers/information!

[JONATHAN LL]

Hi,

KevinA said:

Thingy:91, once the nRF52840  I2C is setup and communicating with a sensor how do you get that data to the cloud?

You will need to set up communication between the nrf52 and the nrf9160, so for example you can send data over uart form the nrf52 to the nrf9160, then the nrf9160 can upload the data to the cloud by HTTPS\MQTT\CoAP.
This might be of interest : http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.4.0/nrf/samples/nrf9160/lte_ble_gateway/README.html 


Here is a different case with the Thingy:91 and use of I/O: Nordic DevZone (nordicsemi.com) 
And, Nordic DevZone (nordicsemi.com), and this Nordic DevZone (nordicsemi.com)


Regards,
Jonathan