Thingy:53 I2C

[EricSacchetto]

Hi people,

I would like to know how to use the I2C of my thingy:53.

Since there is a Qwiic connector I want to know if it is possible to connect to a Qwiic display, for example.

Does anyone have any example on how to use it?

Thanks

[Maria Gilje]

Hello Eric,

Thank you for your patience. The DevZone team is currently short staffed of summer holiday in Norway. Some delays are expected.
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To use I2C you need to set it up in a devicetree in your application. You can see how the devicetree for I2C is set up in thingy53_nrf5340_common.dts at <ncs-installation>\zephyr\boards\arm\thingy53_nrf5340. You can use the i2c1 node as a guide for setting up your Qwiic display.

The pin numbers for the Qwiic compatible expansion board connector are found on the Infocenter. Assigning pin numbers differs based on your nRF Connect SDK version. NCS v2.0.0 and later uses pinctrl, and earlier versions does not.

There are no I2C samples specifically for Nordic chips in our SDK, but there is one for Fujitsu MB85RC256V FRAM at <ncs-installation>\zephyr\samples\drivers\i2c_fujitsu_fram which may be helpful.

Best regards,

Maria