# Connections

## Overview

![D2X rev2 mainboard top view](/files/-LOUh5H32sAbq6oKEeuz)

#### ANT1

Antenna port 1 - SMA connector female

#### ANT2

Antenna port 2 - SMA connector female

## Left side view

### Connector positions

![](/files/-LOUhVOeWYoxMxEvDAfJ)

### Connector descriptions

#### CAN1

2 4pin JST-GH connectors for CAN bus. Pins of both ports are physically connected to each other.

| pin | signal  | specification |
| --- | ------- | ------------- |
| 1   | V\_CAN1 |               |
| 2   | CAN1\_H |               |
| 3   | CAN1\_L |               |
| 4   | GND     |               |

#### CAN2

2 4pin JST-GH connectors for CAN bus. Pins of both ports are physically connected to each other.

| pin | signal  | specification |
| --- | ------- | ------------- |
| 1   | V\_CAN2 |               |
| 2   | CAN2\_H |               |
| 3   | CAN2\_L |               |
| 4   | GND     |               |

#### I2C-1

4pin JST-GH connector for I2C port 1.

| pin | signal   | specification |
| --- | -------- | ------------- |
| 1   | V5.2     | 5.2V          |
| 2   | I2C1 SCL | 3.3V          |
| 3   | I2C1 SDA | 3.3V          |
| 4   | GND      | 0V            |

#### I2C-3

5pin JST-GH connector for I2C port 3 including one IRQ line to connect NFC reader.

| pin | signal   | specification                         |
| --- | -------- | ------------------------------------- |
| 1   | V5.2     | 5.2V                                  |
| 2   | I2C3 SCL | 3.3V                                  |
| 3   | I2C3 SDA | 3.3V                                  |
| 4   | IRQ      | 3.3V, connected to GPIO P25 of i.MX6Q |
| 5   | GND      | 0V                                    |

#### ETH2

4pin JST-GH connector for 100bT Ethernet connection.

{% hint style="warning" %}
currently not supported!
{% endhint %}

#### 2wire ETH1

2pin JST-GH connector for 100bT 2wire Ethernet connection.

{% hint style="warning" %}
currently not supported!
{% endhint %}

#### 2wire ETH2

2pin JST-GH connector for 100bT 2wire Ethernet connection.

{% hint style="warning" %}
currently not supported!
{% endhint %}

## Front side view

### Connector and Button positions

![](/files/-LOUiuOWmBYQv_ecPGtU)

### Connector and Button descriptions

#### UART

6pin JST-GH connector providing UART1 (console) and UART4 (telemetry).\
UART4 purpose is to connect to UART of flight control for providing MavLink telemetry data in case used as drone unit.

| pin | signal   | specification |
| --- | -------- | ------------- |
| 1   | V5.2     | 5.2V          |
| 2   | UART1 TX | 3.3V          |
| 3   | UART1 RX | 3.3V          |
| 4   | UART4 TX | 3.3V          |
| 5   | UART4 RX | 3.3V          |
| 6   | GND      | 0V            |

#### USB

microUSB socket acting either as USB-OTG or USB client serial or ethernet port.\
USB serial or ethernet is configurable via nxpD2X startup script.\
See [Enable USB network](/d2x/software/d2x-application/enabling-usb-network.md) for further details on the startup configuration.

{% hint style="info" %}
Default setting is USB network with IP 192.168.7.2 or .7.3\
Host computer should be set to 192.168.7.1
{% endhint %}

#### HDMI

Standard HDMI connector to attach a display/monitor.

#### ETH1

Hirose iX connector for Gbit Ethernet connection.

{% hint style="warning" %}
currently not supported!
{% endhint %}

#### RESET

Reset button to perform hardware reset.

#### BTN

General purpose button. Connected to GPIO P24 of i.MX6Q.\
Active low.

## Right side view

### Connector positions

![](/files/-LOUj_zCFcUljFa0e7mV)

### Connector descriptions

#### CAMERA

33pin CSI-2 camera port.  Camera module supported is Technexion [CAM-OV5645](https://shop.technexion.com/cam-ov5645.html).

| pin | signal     | specification |
| --- | ---------- | ------------- |
| 1   | CSIC-1\_P  |               |
| 2   | CSIC-1\_N  |               |
| 3   | GND        | 0V            |
| 4   | CSID0-1\_P |               |
| 5   | CSID0-1\_N |               |
| 6   | GND        | 0V            |
| 7   | CSID1-1\_P |               |
| 8   | CSID1-1\_N |               |
| 9   | GND        | 0V            |
| 10  | CSID2-1\_P |               |
| 11  | CSID2-1\_N |               |
| 12  | GND        | 0V            |
| 13  | CSID3-1\_P |               |
| 14  | CSID3-1\_N |               |
| 15  | GND        | 0V            |
| 16  | DSI\_D1\_P |               |
| 17  | DSI\_D1\_M |               |
| 18  | GND        | 0V            |
| 19  | DSI\_D0\_P |               |
| 20  | DSI\_D0\_M |               |
| 21  | GND        | 0V            |
| 22  | DSI\_C\_P  |               |
| 23  | DSI\_C\_M  |               |
| 24  | GND        | 0V            |
| 25  | I2C2 SCL   |               |
| 26  | I2C2 SDA   |               |
| 27  | V3.3       | 3.3V          |
| 28  | V3.3       | 3.3V          |
| 29  | GPIO\_3    | 3.3V          |
| 30  | GPIO\_6    | 3.3V          |
| 31  | GPIO\_8    | 3.3V          |
| 32  | V5.2       | 5.2V          |
| 33  | V5.2       | 5.2V          |

#### GPIO

4pin JST-GH connector providing 3 GPIO data lines.

| pin | signal      | specification |
| --- | ----------- | ------------- |
| 1   | GPIO\_P28   | 3.3V          |
| 2   | GPIO\_P30   | 3.3V          |
| 3   | GPIO2\_IO08 | 3.3V          |
| 4   | GND         | 0V            |

#### POWER

4pin JST-GH supply power connector.

| pin | signal | specification             |
| --- | ------ | ------------------------- |
| 1   | VIN    | 7-25V, use both pins 1&2. |
| 2   | VIN    | 7-25V, use both pins 1&2. |
| 3   | GND    | 0V, use both pins 3&4.    |
| 4   | GND    | 0V, use both pins 3&4.    |

#### PPS

2pin JST-GH connector for 1pps clock signal input to V2X transceiver module.

| pin | signal | specification |
| --- | ------ | ------------- |
| 1   | 1PPSn  | 3.3V          |
| 2   | GND    | 0V            |

#### SPI

7pin JST-GH connector providing SPI port.

| pin | signal    | specification              |
| --- | --------- | -------------------------- |
| 1   | V5.2      | 5.2V                       |
| 2   | SPI\_SCK  | 3.3V, SPI2\_SCLK on i.MX6Q |
| 3   | SPI\_MISO | 3.3V, SPI2\_MISO on i.MX6Q |
| 4   | SPI\_MOSI | 3.3V, SPI2\_MOSI on i.MX6Q |
| 5   | SPI\_CS2  | 3.3V, SPI\_SS2 on i.MX6Q   |
| 6   | SPI\_CS3  | 3.3V, SPI\_SS3 on i.MX6Q   |
| 7   | GND       | 0V                         |

#### RS232

4pin JST-GH connector for RS232 level UART.

{% hint style="warning" %}
Currently not supported!
{% endhint %}

#### GPS

6pin JST-GH GPS UART connector following dronecode standard including I2C port for compass.

| pin | signal   | specification |
| --- | -------- | ------------- |
| 1   | V5.2     | 5.2V          |
| 2   | UART5 TX | 3.3V          |
| 3   | UART5 RX | 3.3V          |
| 4   | I2C2 SCL | 3.3V          |
| 5   | I2C2 SDA | 3.3V          |
| 6   | GND      | 0V            |


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