NanoPi Duo2 IoT-Box

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Introduction

NanoPi Duo2 IoT-Box Side
NanoPi Duo2 IoT-Box Front
NanoPi Duo2 IoT-Box Back
  • The NanoPi Duo2 IoT-Box is a dedicated carrier board for the NanoPi Duo2. It populates Ethernet port, serial port, audio and USB etc.
  • It has an onboard quad-band GSM/GPRS module SIM800C.
  • It has 2.0mm I2C interface, UART interface, audio interface and CVBS interface etc and can work with various external modules.
  • Its MicroUSB port is only used as power input. And a power switch is added too.
  • It has one power LED and one GPIO accessed LED.
  • It populates the two USB ports of the NanoPi Duo2.
  • It populates the serial ports and Ethernet port of the NanoPi Duo2.
  • It has an IPX to SMA antenna converter for WiFi antennas.

Hardware Spec

  • Onboard quad-band GSM/GPRS module
  • 2 x USB Host
  • Serial port and Ethernet port
  • Audio input and output
  • MicroUSB power input and a power switch
  • IPX to SMA WiFi converter
  • PCB dimension (mm): 85x56

NanoPi Duo2 IoT-Box_PCB

Layout

NanoPi Duo2 IoT-Box Layout

Here is the NanoPi Duo2 IoT-Box's layout. Its pins' remarks are printed on the board.

  • NanoPi Duo header Pin Spec
Number# Name Number# Name
1 VDD_5V 17 DEBUG_RX(UART_RXD0)/GPIOA5/PWM0
2 VDD_5V 18 DEBUG_TX(UART_TXD0)/GPIOA4
3 SYS_3.3V 19 GND
4 GND 20 I2C0_SCL/GPIOA11
5 GPIOL11/IR-RX 21 I2C0_SDA/GPIOA12
6 GPIOG11 22 UART3_TX/SPI1_CS/GPIOA13
7 USB-DM3 23 UART3_RX/SPI1_CLK/GPIOA14
8 USB-DP3 24 UART3_CTS/SPI1_MISO/GPIOA16
9 USB-DM2 25 UART3_RTS/SPI1_MOSI/GPIOA15
10 USB-DP2 26 UART1_RX/GPIOG7
11 EPHY-RXN 27 UART1_TX/GPIOG6
12 EPHY-RXP 28 CVBS
13 EPHY-TXN 29 LINEOUT_L
14 EPHY-TXP 30 LINEOUT_R
15 EPHY-LED-LINK 31 MIC_P
16 EPHY-LED-SPD 32 MIC_N

Hardware Setup

The NanoPi Duo2 can be mounted on the NanoPi Duo2 IoT-Box carrier board. You can refer to the following setup to assemble them:
NanoPi Duo2 IoT-Box_NanoPi_Duo2

You can connect your NanoPi Duo2 IoT-Box board to a network and external modules such as USB devices
NanoPi Duo2 IoT-Box

When you use the onboard quad-band GSM/GPRS module you should use an appropriate antenna and this antenna's band is different from an WiFi antenna's band. You can refer to the following setup:
NanoPi Duo2 IoT-Box Assemble an antenna

Applications

Work with GSM/GPRS Module

Insert a SIM card and connect a GSM/GPRS antenna to the board:

Work with USB Host

You can connect a USB device e.g. Matrix - LCD2USB to the NanoPi Duo2 IoT-Box board as follows:
连接Matrix - LCD2USB

Work with Audio Input & Output

1. Run the following command to record voices:

arecord -D hw:0,0 -f cd test.wav

Here is what you expect to observe:
Voice Recording
2. Run the following command to play audio e.g. the /root/Music/test.wav file

 aplay /root/Music/test.wav

Here is what you expect to observe:
Audio Play

You can use the alsamixer utility to adjust the volume.

Resources

Update Log

Oct-10-2018

  • Released English Version