> 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

### CAN bus

The NavQ+ contains 4 CAN-FD ports.

<figure><img src="/files/W5hpQkj7iGUXAAkGnUqH" alt=""><figcaption></figcaption></figure>

### T1 Ethernet

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

<figure><img src="/files/TzkHYYhXBpAtfKGEdrZy" 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="/files/JovXzOgIQxkDeDW4YUt0" 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="/files/IEBI7ltYFMsnC3wFai8g" 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="/files/Bn0OQba0BC0oskMUkV29" alt=""><figcaption></figcaption></figure>