Notice

Please read manual carefully before install, operate, or transport MiiVii device.

• Ensure that the correct power range is being used before powering the device.

• Avoid hot plugging.

• To properly turn off the power, please shut down the Ubuntu system first, and then cut off the power. Due to the particularity of the Ubuntu system, on the Nvidia developer kit, if the power is turned off when the startup is not completed, there will be a 0.03% probability of abnormality, which will cause the device to fail to start. Due to the use of the Ubuntu system, the same problem also exists on the Miivii device.

• Do not use cables or connectors other than described in this manual.

• Do not use MiiVii device near strong magnetic fields.

• Backup your data before transportation or MiiVii device is idle.

• Recommend to transport MiiVii device in its original packaging.

Brief

        Miivii EVO NX is an embedded edge computing device designed for industrial scenarios. The NVIDIA® Jetson Xavier NX core platform provides 21Tops computing power. The EVO NX adopts an efficient passive heat dissipation design for stable operation in harsh industrial environments. Also, due to its fastening embedded design, it can achieve a high vibration rating. The product has a wealth of I/O interfaces, which can meet the access requirements of a variety of special sensors. At the same time, a wealth of internal expansion interfaces are designed to provide more communication and storage expansion solutions.

Included in the Box

-MIIVII EVO NX x 1

-Power cable x 1

-Fixed plate x 2

-Screws

-Quick start x 1

Specifications

Processor

 I/O

Power Supply

Mechanical

Environmental

Certification

Install Dimension

Dimensions and mounting hole position as below:

Service and Support

Support

MiiVii is glad to help you with any questions you may have about our product, or about the use of the technology for your application. The fastest way is sending us an email: helpdesk@miivii.com. Or you could visit our developer forum: http://forum.miivii.com for solutions.

Warranties

Warranty period: One year from the date of delivery.

Warranty content: MiiVii warrants the product manufactured by us to be free from defects in material and workmanship during warranty period. Please contact helpdesk@miivii.com for return material authorization (RMA) prior to returning any items for repair or exchange. The product must be returned in its original packaging to prevent damage during shipping. Before returning any product for repair, it is recommended to back up your data and delete any confidential or personal data.

Interface

Front Panel

Back Panel

RS485 Pin Assignment

RS232/Debug Pin Assignment

UART Port Device Node

Relation of UART Port and device node as follow:

Expansion

Expansion device installation

EVO NX provides M.2 M Key, mini PCIe port for storage and communication expansion

Unscrew 8 screws and take off bottom cover of EVO NX while installation expansion device:

Expansion port position as follow:

Install expansion device based on demand. Please note that if you need 4G module, insert nano SIM card into nano SIM socket before install 4G module.

Please install WiFi/4G antenna to ensure signal stability.

Please refer to the first step, and restore EVO NX after install expansion device.

Fixed Plate installation

Please install fixed plate first if you need to securing EVO NX on another system.

Install the holes on the fixing plate to fix the EVO NX to other devices as required.

General Setting

General Setting

System

MiiVii device use Ubuntu system. Default username: nvidia default password: nvidia

System Image and Flashing Tool

Please visit MiiVii developer forum: http://forum.miivii.com/ for flash tool and system image.

Power on

Connect an external HDMI display to MiiVii's HDMI port.

Connect a USB keyboard and mouse.

Connect the included AC adapter to power socket. Plug AC adapter into an appropriately rated electrical outlet.

Power off: Use the following command in terminal.

For MiiVii device with entity PWR button, you can also press and hold PWR button.

sudo poweroff

Reset: Use the following command in terminal.

For MiiVii device with entity RESET button, you can also press RESET button to reboot.

sudo reboot

cat /etc/miivii_release
APEX 4.2.2-1.5.0

Power Mode Setting

MiiVii device has several power modes. You can set up power mode through the green NVIDIA icon on the upper right corner.

For MiiVii device equipped with NVIDIA Jetson Xavier NX, the following table shows details of each power mode . The default mode is 3： MODE 10W 2CORE.

You can also set up through code:

#check current mode
sudo nvpmodel -q verbose
# set to a certain mode
sudo nvpmodel -m [MODE ID]
#achieve best performance of current mode
sudo jetson_clocks
#check more info
sudo jetson_clocks --show

IO

UART

Open device node in /dev/. Then use stty command to set parameters. See stty command manual for details, please change the code in <> to your UART device node.

#config UART
$ sudo stty -F /dev/<UART NODE CODE> speed 115200 cs8 -parenb -cstopb -echo
#send data through UART
$ sudo echo “miivii tty debug” > /dev/<UART NODE CODE>
#receive data from UART
$ sudo cat /dev/<UART NODE CODE>

Expansion Setting

SSD Setting

#check ssd information: 

sudo fdisk -lu

#Format SSD: 

sudo mkfs -t ext4 /dev/nvme0n1

#Check UUID: 

sudo blkid /dev/nvme0n1

Setting method of automatic mounting SSD： Create a systemd service in the /etc/systemd/system path to automatically mount the SSD when booting, such as: miivii_mount_ssd.service

#Create miivii_mount_ssd.service
vim miivii_mount_ssd.service
[Unit]
Description=MIIVII specific script
After=udev.service

[Service]
ExecStart=/etc/systemd/miivii_mount_ssd.sh

[Install]
WantedBy=multi-user.target

Create a script in the /etc/systemd/ path to mount the SSD, such as: miivii_mount_ssd.sh

#Create miivii_mount_ssd.sh
vim miivii_mount_ssd.sh
#!/bin/bash
mount -o rw /dev/nvme0n1 /home/nvidia/workspace

change mode for this script

sudo chmod +x miivii_mount_ssd.sh

Set the mounted SSD service to start at boot

sudo systemctl enable miivii_mount_ssd.service

Wireless Setting

WiFi Setting

MiiVii S2, S2Pro and EVO TX2 ，EVO TX2 GMSL2 has WiFi function.While Apex Xavier MiiVii EVO Xavier, Lite NX and Lite Nano provides WiFi function via a expansion module. Please refer to the information in [Expansion] to intall WiFi module. Click the network icon in upper-right corner of the desktop. Find the name of your WiFi network and click on it. Enter your password and click ‘Connect’.

4G Setting

4G module is not included in MiiVii device package. Please refer to the information in [Expansion] to intall 4G module. Instructions for 4G module configuration are shown as below, using QUECTEL EM05 as an example. EM05 4G driver is included in MiiVii system. This SIM card could be detected automatically. There should be 4 devices under /dev/ttyUSB0~/dev/ttyUSB3.

Users need to choose their own 4G LTE SIM card(note that mobile phone sim card and IOT sim card is supported, but IOT sim card is hardware-binding, please consult your carrier for more information ). Before getting started, please insert SIM card into sim socket.

Click the network icon in upper-right corner of the desktop. Find 'Edit Connections', then click 'add'.

Change connection type to 'Mobile Broadband'

Next

Change country to 'China'. Then choose network provider.

If your network provider is not included in the list, then enter it manually.

Choose your Plan

China Mobile choose 'Internet'，China Unicom and China Telecom choose default

APN settings: China Mobile: cmnet; China Unicom: 3gnet; China Telecom: ctnet

Check entire settings, then click 'Apply'

Enter username and password, click 'save'

Click the network icon in upper-right corner of the desktop. Then connect to your network. If you need auto connection, please edit Network connections:

Select 'General', then check 'Automatically connect to this network when it is available'

Reset MiiVii device, you can automatically connect to 4G network

Demo and application

MiiVii offers several demo code:

Algorithm: MiiVii device offers human, vehicle, bicycle detection. Please refer to /opt/miivii/features/algorithm

Acceleration SDK: MiiVii device provides acceleration SDK based on Yolo v3. Please refer to /opt/miivii/features/miivii-accelerator

ROS demo: MiiVii device offers ROS DEMO. Please refer to /opt/miivii/ros_demo

Among them, miivii_msgs is the message rule of ROS. miivii_gmsl is the ROS node of GMSL camer. miivii_detector is the ROS node of object detection.

Besides, MiiVii also open source part of our code in Github. Please visit https://github.com/MiiViiDynamics for more information.

Appendix

Exception Handling

If bug occurs to you while developing, please check DEBUG log first:

Step 1: Find the position of DEBUG port in 'Interfaces'

Step 2: Connect DEBUG port with a PC using a UART-USB cable¹

Step 3: Download Serial debugging tool in the PC, set Baud to 115200

Step 4: Check DEBUG log

[1]：According to the information in 'Interfaces', select the RS232-USB cable or TTL-USB cable。