> For the complete documentation index, see [llms.txt](https://nxp.gitbook.io/mobilerobotics/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nxp.gitbook.io/mobilerobotics/flashing-guide/navq+-companion-computer/connectors.md).

# Connectors

The different connections available on the board and where they are located

### CAN bus

The NavQ+ contains 4 CAN-FD ports.

<figure><img src="https://3991116448-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8v3AGPa-j5DtYx8zqd%2Fuploads%2F21KnGpboWrgGvOUnI714%2Fimage.png?alt=media&amp;token=e15d6aac-0af7-4085-9b6c-fda9eea862d6" alt=""><figcaption></figcaption></figure>

### T1 Ethernet

It also has an ethernet connection, indicated in the photo below.

<figure><img src="https://3991116448-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8v3AGPa-j5DtYx8zqd%2Fuploads%2FTOutGbWSYGMTnn5K5qJ8%2Fimage.png?alt=media&amp;token=5def0be4-c253-4e08-985f-a9430db357f4" alt=""><figcaption></figcaption></figure>

### I2C&#x20;

The board contains an AUX port that supports I2C. The pins in this port you must use for I2C are: Pin 1 = 5V, Pin 2 = I2C\_SDA, Pin 3 = I2C\_SCL, Pin 6 = GND. Also displayed below.

<figure><img src="https://3991116448-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8v3AGPa-j5DtYx8zqd%2Fuploads%2F6O5FRNofVOoZnw2IvXUS%2Fimage.png?alt=media&amp;token=5700316e-5d84-49a4-b086-6d09d205c853" alt=""><figcaption></figcaption></figure>

### SPI (UART3)

The SPI port shares the same port as UART3. Their pins are displayed at the bottom of the image.

<figure><img src="https://3991116448-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8v3AGPa-j5DtYx8zqd%2Fuploads%2F8hxnQPvwrmJUsFOUTDca%2Fimage.png?alt=media&amp;token=483c3820-d199-472a-923e-cced51acfdc2" alt=""><figcaption></figcaption></figure>

### UART 2 and UART4

The board also contains a UART 1, however, to use UART 1 you need to look at the schematics as it works with Bluetooth. The other two ports for UART are displayed below:

<figure><img src="https://3991116448-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M8v3AGPa-j5DtYx8zqd%2Fuploads%2FbhUqVMF9u54bWJwvClu9%2Fimage.png?alt=media&amp;token=41f27b40-a485-4dbc-bf6c-3404bd232bc3" alt=""><figcaption></figcaption></figure>