No. 

Name 

Illustration

Specifications & Operation

1

DC Power Input

DC 12V 3A. Please use the matched power adapter.
 DC port size: 5.5-2.1MM

2

HDMI Input 

HDMI input, up to 4K 60Hz supported.

sudo systemctl disable SophonHDMI

reboot

sudo insmod /mnt/system/ko/v4l2_lt6911.ko

cd /opt/sophon/sophon-soc-libisp_1.0.0/bin/

./isp_tool_daemon

The current demo only supports 4K60. Modify the firmware for other resolutions.

3

Recovery Key

For USB firmware upgrade.

4

 HDMI Output

Supports up to 4K 60HZ.

5-6

Ethernet 

1000M x2
 ETH1: Static IP; ETH0: Dynamic IP

7-8-9

USB Ports

USB1: USB3.0 OTG port for firmware upgrade (TF card upgrade recommended).
 USB2 & USB3: USB3.0 HOST ports.

10

 UART & GPIO Ports 

RS485 – ttyS1, maximum baud rate 115200bps
 RS232 – ttyS3, maximum baud rate 115200bps
 Test with the supporting UART script.

Max load: 1A. Wire length shall not exceed 1M.

GPIO-IN

Low level or floating: CPU reads "1".
 High level (3.3-12V): CPU reads "0".

GPIO IN1：

echo 338 > /sys/class/gpio/export

echo in > /sys/class/gpio/gpio338/direction

cat /sys/class/gpio/gpio338/value

GPIO IN2：

echo 339 > /sys/class/gpio/export

echo in > /sys/class/gpio/gpio339/direction

cat /sys/class/gpio/gpio339/value

GPIO-OUT

CPU outputs "1": port outputs 3.3V.
 CPU outputs "0": port outputs 0V.

GPIO output is open-drain with 3.3V@10K pull-up. It can control 5V-12V devices (external pull-up required).

GPIO OUT1：

echo 335 > /sys/class/gpio/export

echo out > /sys/class/gpio/gpio335/direction 

echo 0 > /sys/class/gpio/gpio335/value

echo 1 > /sys/class/gpio/gpio335/value

GPIO OUT2 ：

echo 334 > /sys/class/gpio/export

echo out > /sys/class/gpio/gpio334/direction 

echo 0 > /sys/class/gpio/gpio334/value

echo 1 > /sys/class/gpio/gpio334/value

11

SIM

Nano-SIM slot for 4G and 5G networks.

12

Debug Port

Built-in USB to UART chip CH341, baud rate 115200bps.
 Driver download: https://www.wch.cn/products/CH340
 Supports firmware upgrade and data storage.

13

TF Card Slot

Available for firmware upgrade and data storage.

14-15

Indicator Lights

16

Power Port

2.0MM 4P, connected in parallel with DC port.

17

Fan Interface 1

1.25MM 3P with PWM. Default for 12V fan.

18

Fan Interface 2

1.25MM 4P with PWM. Default for 12V fan.

19

Fan Power Switch Inductor

Used to switch power supply voltage for fans.

20

GPIO Port

21

SATA Interface

Two SATA 3.0 7P ports. Please format the hard drive before use.

22

SATA Power Port

Two 2.0MM 4P SATA power connectors.

23,-24

PWR & Reset Buttons

Power button and Reset button.

25

Debug Port

2.0MM 3P interface.

26

4G/5G Module Interface

4G/5G Module Interface

M.2 B-key, supports 2242 and 2250 modules. Communication: USB2.0 + USB3.0. Compatible with Meig SRM821 5G module; other modules require additional debugging.

27

M.2 PCIE

PCIE3.0 x2. Supports SSD and other PCIe modules. Please format the SSD before use.