NanoPi NEO2

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Introduction

Overview
Front
Back
  • The NanoPI NEO2 is a newly released super tiny ARM board by FriendlyElec. It uses Allwinner’s 64-bit H5 quad-core SoC (ARM Cortex-A53). It has internal hexa-core Mail450 GPU, 512M DDR3 RAM. A UbuntuCore and Armbian image files are ready for it.
  • The NanoPi NEO2 inherits NEO's form factor and has compatible interfaces and ports with NEO. In addition in such a small dimension it has Gbps Ethernet and one USB host port. These features make it especially suitable for applications that require high data throughput , speedy data transmission and high performance. Hobbyists and makers will just love it.

Hardware Spec

  • CPU: Allwinner H5, Quad-core 64-bit high-performance Cortex A53
  • DDR3 RAM: 512MB
  • Connectivity: 10/100/1000M Ethernet, RTL8211E-VB-CG chip
  • USB Host: USB Type A x 1 and USB pin header x 2
  • MicroSD Slot: MicroSD x 1 for system boot and storage
  • LED: Power LED x 1, System LED(Blue) x 1
  • GPIO1: 2.54mm pitch 24 pin-header, compatible with Raspberry Pi's GPIO pin1 - pin 24. It includes UART, SPI, I2C, IO etc
  • GPIO2: 2.54mm pitch 12 pin-header. It includes USB, IR receiver, I2S, IO etc
  • Serial Debug Port: 2.54mm pitch 4pin-header
  • Audio In/Out: 2.0mm pitch 4 pin-header
  • MicroUSB: Power input(5V/2A) and OTG
  • PCB Dimension: 40 x 40mm
  • Weight: 13g(WITHOUT Pin-headers)
  • OS/Software: u-boot,Ubuntu Core

Diagram, Layout and Dimension

Layout

NanoPi NEO2 Layout
pinout
  • GPIO Pin Description
Pin# Name Linux gpio Pin# Name Linux gpio
1 SYS_3.3V 2 VDD_5V
3 I2C0_SDA 4 VDD_5V
5 I2C0_SCL 6 GND
7 GPIOG11 203 8 UART1_TX/GPIOG6 198
9 GND 10 UART1_RX/GPIOG7 199
11 UART2_TX/GPIOA0 0 12 PWM1/GPIOA6 6
13 UART2_RTS/GPIOA2 2 14 GND
15 UART2_CTS/GPIOA3 3 16 UART1_RTS/GPIOG8 200
17 SYS_3.3V 18 UART1_CTS/GPIOG9 201
19 SPI0_MOSI/GPIOC0 64 20 GND
21 SPI0_MISO/GPIOC1 65 22 UART2_RX/GPIOA1 1
23 SPI0_CLK/GPIOC2 66 24 SPI0_CS/GPIOC3 67
  • USB/Audio/IR Pin Descripton
NanoPi-NEO2
Pin# Name Description
1 VDD_5V 5V Power Out
2 USB-DP1 USB1 DP Signal
3 USB-DM1 USB1 DM Signal
4 USB-DP2 USB2 DP Signal
5 USB-DM2 USB2 DM Signal
6 GPIOL11/IR-RX GPIOL11 or IR Receive
7 SPDIF-OUT/GPIOA17 GPIOA17 or SPDIF-OUT
8 PCM0_SYNC/I2S0_LRC I2S/PCM Sample Rate Clock/Sync
9 PCM0_CLK/I2S0_BCK I2S/PCM Sample Rate Clock
10 PCM0_DOUT/I2S0_SDOUT I2S/PCM Serial Data Output
11 PCM0_DIN/I2S0_SDIN I2S/PCM Serial Data Input
12 GND 0V
  • Audio
Pin# Name Description
1 MICIN1P Microphone Positive Input
2 MICIN1N Microphone Negative Input
3 LINEOUTR LINE-OUT Right Channel Output
4 GND 0V
5 LINEOUTL LINE-OUT Left Channel Output
  • Debug Port(UART0)
DBG_UART
Pin# Name
1 GND
2 VDD_5V
3 UART_TXD0
4 UART_RXD0
Note
  1. SYS_3.3V: 3.3V power output
  2. VDD_5V: 5V power input/output. The input range is 4.7V ~ 5.6V. It can take power input from the MicroUSB.
  3. All pins are 3.3V and output current is 5mA
  4. For more details refer to the document: NanoPi_NEO2-1701-Schematic.pdf

Dimensional Diagram

NanoPi-NEO2-1701-dimensions.png

For more details refer to pcb file in dxf format

Get Started

Essentials You Need

Before starting to use your NanoPi NEO2 get the following items ready

  • NanoPi NEO2
  • microSD Card/TFCard: Class 10 or Above, minimum 8GB SDHC
  • microUSB power. A 5V/2A power is a must
  • A Host computer running Ubuntu 14.04 64 bit system

TF Cards We Tested

To make your NanoPi NEO2 boot and run fast we highly recommend you use a Class10 8GB SDHC TF card or a better one. The following cards are what we used in all our test cases presented here:

  • SanDisk TF 8G Class10 Micro/SD TF card:

SanDisk MicroSD 8G

  • SanDisk TF128G MicroSDXC TF 128G Class10 48MB/S:

SanDisk MicroSD 128G

  • 川宇 8G C10 High Speed class10 micro SD card:

chuanyu MicroSD 8G

Make an Installation TF Card

Get Image File

Get the following files from download link to download image files (under the officail-ROMs directory) and the flashing utility(under the tools directory):

Image Files:
nanopi-neo2-ubuntu-core-qte-sd4g.img.zip Ubuntu-Core with Qt-Embedded Image File
Flash Utility:
win32diskimager.rar Windows utility. Under Linux users can use "dd"

Make Ubuntu-Core with Qt-Embedded Image Card

Extract the nanopi-neo2-ubuntu-core-qte-sd4g.img.zip and win32diskimager.rar files. Insert a TF card(at least 8G) into a Windows PC and run the win32diskimager utility as administrator. On the utility's main window select your TF card's drive, the wanted image file and click on "write" to start flashing the TF card. After this writing process is done insert this card into your NanoPi NEO2's TF card slot and power on (with a 5V/2A power source). If the blue LED is blinking this indicates your NanoPi NEO2 has successfully booted.

Work with Ubuntu-Core with Qt-Embedded

Run Ubuntu-Core with Qt-Embedded

  • If you want to do kernel development you need to use a serial communication board, ie a PSU-ONECOM board, which will allow you to operate the board via a serial terminal. Here is a setup where we connect a NanoPi NEO2 to a PC via the PSU-ONECOM and you can power on your NEO2 from either the PSU-ONECOM or the board's MicroUSB:

PSU-ONECOM-NEO2

  • Ubuntu-Core's User Accounts:

Non-root User:

   User Name: pi
   Password: pi

Root:

   User Name: root
   Password: fa

The system is automatically logged in as "pi". You can do "sudo npi-config" to disable auto login.

  • Update packages:
sudo apt-get update

Configure System with npi-config

The npi-config is a commandline utility which can be used to initialize system configurations such as user password, system language, time zone, Hostname, SSH switch , Auto login and etc. Type the following command to run this utility.

sudo npi-config

Here is how npi-config's GUI looks like:
npi-config

Ethernet Connection

If a NanoPi NEO2 is connected to a network via Ethernet before it is powered on it will automatically obtain an IP after it is powered up. If it is not connected via Ethernet or its DHCP is not activated obtaining an IP will fail and system will hang on for about 15 to 60 seconds.In this case you can try obtaining an IP by using the following command:

dhclient eth0

Login via SSH

The NanoPi NEO2 doesn't have a video output interface. You can log into the board via SSH. In our test the IP address detected by our router was 192.168.1.230 and we ran the following command to log into the NanoPi NEO2:

ssh root@192.168.1.230

The password is fa

Extend TF Card's rootfs Section

When you boot Debian/UbuntuCore for the first time with your image card your OS will automatically resize the file system and this process takes a relatively long time.After your OS is fully loaded you can check the file system's size by using the following command:

df -h

Connect USB WiFi to NEO2

Our system has support for popular USB WiFi drivers. Many USB WiFi modules are plug and play with our system. Here is a list of models we tested;

Number Model
1 RTL8188CUS 802.11n WLAN Adapter
2 RT2070 Wireless Adapter
3 RT2870/RT3070 Wireless Adapter
4 RTL8192CU Wireless Adapter
5 NetGear, Inc. WG111v3 54 Mbps Wireless [realtek RTL8187B]

If you NanoPi NEO2 is connected to a USB WiFi and is powered up you can log into NEO2 and run the following command to check if the USB WiFi is recognized. If "wlan0" is listed it indicates your USB WiFi has been recognized:

sudo ifconfig -a

Open this file "/etc/wpa_supplicant/wpa_supplicant.conf":

sudo vi /etc/wpa_supplicant/wpa_supplicant.conf

Open the /etc/wpa_supplicant/wpa_supplicant.conf file and append the following lines:

network={
        ssid="YourWiFiESSID"
        psk="YourWiFiPassword"
}

The "YourWiFiESSID" and "YourWiFiPassword" need to be replaced with your actual ESSID and password.
Save, exit and run the following commands to connect to your WiFi router:

$ sudo ifdown wlan0
$ sudo ifup wlan0

If your WiFi password has special characters or you don't want your password saved as plain text you can use "wpa_passphrase" to generate a psk for your WiFi password. Here is how you can do it:

$ sudo wpa_passphrase YourWiFiESSID

Following the prompt type in your password and you will get a new password in the /etc/wpa_supplicant/wpa_supplicant.conf file. Now you can replace the existing password in the wlan0 file with the new one.

Connect NanoPi NEO2 to USB Camera(FA-CAM202)

USB camera
The FA-CAM202 is a 2M-pixel USB camera module. Boot your NEO2, connect NEO2 to the internet, log in the system as root, compile and run the mjpg-streamer utility:

cd /root/mjpg-streamer
apt-get install libjpeg62-dev
make
./start.sh

The mjpg-streamer is an open source media server. After it is started successfully you will see the following messages:

 
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 1280 x 720
 i: Frames Per Second.: 30
 i: Format............: YUV
 i: JPEG Quality......: 90
 o: www-folder-path...: ./www/
 o: HTTP TCP port.....: 8080
 o: username:password.: disabled
 o: commands..........: enabled

In our case our NEO2's IP address was 192.168.1.123. We typed "192.168.1.123:8080" on a browser, entered and we got the following screenshot:
mjpg-streamer-cam500a

Play & Record Audio

The NanoPi NEO2 has an audio interface (2.0mm pitch 5-pin header) whose pin description is as follows:

Pin# Name Description
1 MICIN1P Microphone Positive Input
2 MICIN1N Microphone Negative Input
3 LINEOUTR LINE-OUT Right Channel Output
4 GND
5 LINEOUTL LINE-OUT Left Channel Output

Here is a hardware setup on how to connect an audio device to a NEO2:
耳麦标注
Before begin to play or record a audio make sure your NEO2 is connected to an audio device.
Check a recognized audio device:

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: audiocodec [audiocodec], device 0: SUNXI-CODEC sun50iw2codec-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Play an audio file:

$ aplay /root/Music/test.wav -D plughw:0

Record an audio file:

$ arecord -f cd -d 5 test.wav


Make Your Own Ubuntu-Core with Qt-Embedded

Preparations

Visit this link download link and enter the "sources/nanopi-H5-bsp" directory and download all the source code.Use the 7-zip utility to extract it and a lichee directory and an Android directory will be generated.You can check that by running the following command:

ls ./
lichee

Or you can get it from our github:

git clone https://github.com/friendlyarm/h5_lichee.git lichee

Note: "lichee" is the project name named by Allwinner for its CPU's source code which contains the source code of U-boot, Linux kernel and various scripts.

Install Cross Compiler

Visit this site download link, enter the "toolchain" directory, download the cross compiler "gcc-linaro-arm-4.6.3.tar.xz" and "gcc-linaro-aarch64.tar.xz" and copy them to the "lichee/brandy/toochain/" directory.
"gcc-linaro-arm-4.6.3.tar.xz"is for compiling u-boot and "gcc-linaro-aarch64.tar.xz" is for compiling Linux kernel.

Compile lichee Source Code

Compilation of the H5's BSP source code must be done under a PC running a 64-bit Linux.The following cases were tested on Ubuntu-14.04 LTS-64bit:

sudo apt-get install gawk git gnupg flex bison gperf build-essential \
zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
libgl1-mesa-dev g++-multilib mingw32 tofrodos \
python-markdown libxml2-utils xsltproc zlib1g-dev:i386

Enter the lichee directory and run the following command to compile the whole package:

cd lichee/fa_tools
./build.sh -b nanopi-neo2 -p linux -t all

After this compilation succeeds a u-boot, Linux kernel and kernel modules will be generated.
Note: the lichee directory contains cross-compilers we have setup. When the build.sh script runs it will automatically call these cross-compilers.

The following commands can be used to update the u-boot on an installation TF card:

cd lichee/fa_tools/
./fuse.sh -d /dev/sdx -p linux -t u-boot

Note: you need to replace "/dev/sdx" with the device name in your system.
The boot.img and kernel modules are under the "linux-3.10/output" directory. You can copy the new boot.img file to your TF card's boot section.

Compile U-boot

You can run the following commands to compile u-boot individually:

cd lichee/fa_tools/
./build.sh -b nanopi-neo2 -p linux -t u-boot

Compile Linux Kernel

You can run the following commands to compile Linux kernel individually:

cd lichee/fa_tools/
./build.sh -b nanopi-neo2 -p linux -t kernel

The boot.img and kernel modules are under the "linux-3.10/output" directory. You can copy the new boot.img file to your TF card's boot section.

Clean Source Code

cd lichee/fa_tools/
./build.sh -b nanopi-neo2 -p linux -t clean

3D Printing Files

frameless

downloadfile

Resources

Datasheet & Schematics

Update Log

March-14-2017

  • Released English Version

April-5-2017

  • Added sections 5.2 and 5.8