Nanopi R2c Plus

• Type: Development Board
• Trademark: NanoPi
• Origin: China
• Model NO.: R2C Plus

Product Description

 

1 Introduction

 

Overview

 

Front

 

Back

 

Case

• The NanoPi R2C Plus(as "R2C Plus") is an open source platform with dual-Gbps Ethernet ports designed and developed by FriendlyElec for IoT applications.

• The NanoPi R2C Plus uses the RK3328 SoC. It has two Gbps Ethernet ports, 1G DDR4 RAM and 8G eMMC Flash. FriendlyElec ported an OpenWrt system for it. It works with Docker CE. It is a good platform for developing IoT applications, NAS applications, smart home gateways etc.

2 Hardware Spec

• CPU: Rockchip RK3328, Quad-core Cortex-A53

• DDR4 RAM: 1GB

• Flash: 8GB eMMC 5.1 Flash

• Network:

  • Internal 10/100/1000M Ethernet Port x 1

  • USB3.0 converted 10/100/1000M Ethernet Port x 1

• USB2.0 Host: Type-A x1

• MicroSD Slot x 1

• MicroUSB: power input and USB Slave

• Debug Serial Port: 3.3V TTL, 3-pin 2.54mm pitch connector, 1500000 bauds

• LED: LED x 3

• KEY: KEY x 1 programmable

• 8 Pin GPIO Connector:1 x I2C,1 x UART/2 x GPIOs

• PC Size: 57.5 x 54.3mm

• Power Supply: DC 5V/2A

• Temperature measuring range: 0 to 80

• OS/Software: U-boot,Ubuntu-Core,OpenWrt

 

• Network Transmission Rates

 

	TX	RX
WAN	941 Mbps	941 Mbps
LAN	941 Mbps	941 Mbps
Notes:	1. test utility: iperf 2. use indepedent IP address section and test with a PC in simplex communication mode

3 Diagram, Layout and Dimension

3.1 Layout

• 8 Pin 1.25mm Pitch GPIO connector

 

Pin#	Name	Linux gpio
1	GND
2	GND
3	VDD_5V
4	VDD_5V
5	I2C0_SDA
6	I2C0_SCL
7	UART1_TX / GPIO3_A4	100
8	UART1_RX / GPIOG3_A6	102

For more details refer to:NanoPi_R2C_Plus_2109_SCH.PDFDimensional Diagram:NanoPi_R2C_Plus_2109_DXF.zip

4.3 Serial port debug

Use screen to log in to the serial terminal:

screen /dev /ttyUSB0 1500000 8N1

4.4 Install OS

4.4.1 Flash to TF

Visit download link to download image files and utilities.

Image Files
rk3328-sd-friendlycore-lite-focal-5.10-arm64-YYYYMMDD.img.zip	64-bit FriendlyCore Lite image file based on Ubuntu core 20.04 64bit, kernel version 5.10.y
rk3328-sd-friendlywrt-YYYYMMDD.img.zip	FriendlyWrt image file, based on OpenWrt 21.02, kernel version 5.10.y
Flash Utility:
win32diskimager.rar	Windows utility. Under Linux users can use "dd"

The detailed steps are as follows:

• Get an 8G SDHC card and backup its data if necessary;

• Download and extract the rk3328-sd-OSNAME-YYYYMMDD.img.zip and win32diskimager;

• Run the win32diskimager utility under Windows as administrator. On the utility's main window select your SD card's drive, the wanted image file and click on "write" to start flashing the SD card. Under Linux run "dd" to flash the rk3328-sd-OSNAME-YYYYMMDD.img file to your SD card;

• Take out the SD and insert it to NanoPi-R2C-Plus's microSD card slot;

• Power on NanoPi-R2C-Plus and it will be booted from your TF card;

4.4.2 Flash Image to eMMC

NanoPi-R2C-Plus need to boot from SD card, use EFlasher tool to burn system to eMMC.
Visit download link to download image files and utilities.

Image Files
rk3328-eflasher-friendlycore-lite-focal-5.10-arm64-YYYYMMDD.img.zip	64-bit FriendlyCore Lite image file based on Ubuntu core 20.04 64bit, kernel version 5.10.y
rk3328-eflasher-friendlywrt-YYYYMMDD.img.zip	FriendlyWrt image file, based on OpenWrt 21.02, kernel version 5.10.y
Flash Utility:
win32diskimager.rar	Windows utility. Under Linux users can use "dd"

Flash Image to eMMC with eflasher and SD card:

• Get an 8G SDHC card and backup its data if necessary;

• Download and extract the rk3328-eflasher-OSNAME-YYYYMMDD.img.zip and win32diskimager;

• Run the win32diskimager utility under Windows as administrator. On the utility's main window select your SD card's drive, the wanted image file EFlasher and click on "write" to start flashing the SD card. Under Linux run "dd" to flash the rk3328-eflasher-OSNAME-YYYYMMDD.img file to your SD card;

• Take out the SD and insert it to NanoPi-R2C-Plus's microSD card slot;

• Power on NanoPi-R2C-Plus and it will be booted from your SD card and the EFlasher utility will be automatically launched, check the installation progress through the on-board LED lights:

 

Status	SYS LED (Red)	LAN LED(Green)	WAN LED(Green)
Power on	Long bright	Off	Off
OS startup	Slow blinking	Off	Off
Installing OS to eMMC	Fast blinking	Off	Off
Installation is complete	Slow blinking	Long bright	Long bright

• After installation is done turn off the board and take out the SD card from NanoPi-R2C-Plus, power on the board and it will be booted from eMMC;

5 Work with FriendlyWrt

5.1 Introduction to FriendlyWrt

FriendlyWrt is a customized system made by FriendlyElec based on an OpenWrt distribution. It is open source and well suitable for developing IoT applications, NAS applications, smart home gateways etc.

5.2 First boot

For the first boot, the system needs to do the following initialization work:
1)Extended root file system
2)Initial setup(will execute /root/setup.sh)
So you need to wait for a while (about 2~3 minutes) to boot up for the first time, and then set FriendlyWrt, you can enter the ttyd terminal on the openwrt webpage, when the prompt is displayed as root@FriendlyWrt, it means the system has been initialized.

root@FriendlyWrt

5.3 Account & Password

The default password is password (empty password in some versions). Please set or change a safer password for web login and ssh login. It is recommended to complete this setting before connecting NanoPi-R2C-Plus to the Internet.

5.4 Network Connection

Use a network cable to connect NanoPi-R2C-Plus's WAN to a master router and the board will get an IP address via DHCP. Login into the router and check NanoPi-R2C-Plus's IP address.

5.5 Login FriendlyWrt

Connect the PC to the LAN port of NanoPi-R2C-Plus. If your PC without a built-in ethernet port, connect the LAN port of the wireless AP to the LAN port of NanoPi-R2C-Plus, and then connect your PC to the wireless AP via WiFi , Enter the following URL on your PC's browser to access the admin page:

•  

•  

•  

The above is the LAN port address of NanoPi-R2C-Plus. The IP address of the WAN port will be dynamically obtained from your main router through DHCP.

5.6 Recommended security settings

The following settings are highly recommended to complete before connecting NanoPi-R2C-Plus to the Internet.

• Set a secure password

• Only allow access to ssh from lan, change the port

• Only allow local devices to access luci

Edit /etc/config/uhttpd,Change the original 0.0.0.0 and [::] addresses to the local lan address, for example:

# HTTP listen addresses, multiple allowed
list listen_http192.168.2.1:80
list listen_http[fd00:ab:cd::1]:80

# HTTPS listen addresses, multiple allowed
 
 

Restart the service:

/etc/init.d/uhttpd restart

• Check the firewall settings

By default, FriendlyWrt will set the WAN incoming traffic to ACCEPT, which is convenient for testing but reduces security, you can execute the following command to restore to the default settings of openwrt, the management page can only be accessed by devices connected to the lan port:

uci set firewall.@zone[1].input='REJECT'
uci set firewall.@zone[1].output='ACCEPT'
uci set firewall.@zone[1].forward='REJECT'
uci commit firewall
fw3 reload

5.7 Safe shutdown operation

Enter the ttyd terminal, enter the poweroff command and hit enter, wait until the led light is off, and then unplug the power supply.

5.8 Install Software Packages

5.8.1 Update Package List

Before install software packages update the package list:

$ opkg update

5.8.2 List Available Packages

$ opkg list

5.8.3 List Installed Packages

$ opkg list-installed

5.8.4 Install Packages

$ opkg install

5.8.5 Remove Packages

$ opkg remove

5.9 Disable IPv6

. /root/setup.sh
disable_ipv6
reboot

5.10 Configure the function of the user button

By default, the user button is configured to reboot the device, as shown below:

echo 'BTN_1 1 /sbin/reboot' >> /etc /triggerhappy /triggers.d /example.conf

You can change its behavior by changing the configuration file above.

5.11 Some common issues of FriendlyWrt

• Unable to dial up

  • Go to "Network" -> "Firewall" and set "Inbound Data", "Outbound Data" and "Forwarding" in "WAN Zone" to "Accept";

  • If you still cannot access the Internet, you can try to turn off IPV6;

• Unable to power on

  • Try to replace the power adapter and cable. It is recommended to use a power supply with specifications above 5V/2A;

  • Note that some fast chargers with Type-C interface will have a delay, it may take a few seconds to start providing power;

• When doing secondary routing, the computer cannot connect to the Internet

  • If your main network is IPv4, and NanoPi-R2C-Plus works in IPv6, the computer may not be able to connect to the Internet. It is recommended to turn off IPv6 (the method is described later in this WiKi), or switch the main route to IPv6;

• If you have questions or have better suggestions, please send an email to techsupport;