UNO Dock V2.0 for NanoPi NEO

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1 Introduction

UNO Dock V2.0 for NanoPi NEO

• The UNO Dock V2.0 for NanoPi NEO is a NanoHat Hub alike extension board.
• It is an Arduino board compatible with Arduino UNO and works with Arduino programs.
• The UNO Dock V2.0 communicates with NanoPi NEO/Air/NEO2 with I2C. The MEGA328P on the board acts as an interface between an external module connected to the board and the NanoPi NEO/Air/NEO2 that is mounted on the board.When a NanoPi NEO/Air/NEO2 and an Arduino module are connected to the UNO DOCK users can easily access the Arduino module from the NanoPi NEO/Air/NEO2.
• It has an onboard USB to Serial port chip which allows users to set the serial port as either Arduino serial port or NanoPi NEO/Air/NEO2's debug port with a jumper
• It has 12V power input to 5V/2A output.
• The two USB ports on the NanoPi NEO/Air/NEO2 are populated to the module
• The male connectors on the NanoPi NEO/Air/NEO2 are populated to the module and a NanoHat module can be stacked on it.
• NEO's GPIO pins are populated to the module
• NanoPi NEO/Air/NEO2 can be directly mounted on the UNO Dock V2.0.

2 Hardware Spec

• Arduino UNO supported
• Onboard USB to Serial port
• 12V power input to 5V/2A output
• Compatible with BakeBit Modules
• 2 x USB port
• NEO's connectors are populated and a NanoHat can be stacked on it
• NEO's GPIO pins are populated
• PCB dimension(mm): 112 x 53.3

• For more details refer to: UNO Dock V2.0 for NanoPi NEO Dimension.rar
  

2.1 Connector Pin Description

Here is a pin description for the UNO Dock V2.0 for NanoPi NEO's connectors:

• UNO Dock V2.0 for NanoPi NEO Connector Pin Description:

Pin	Description
12V DC In	12V Input
Power on/off	Power Switch
NEO USB 1	Populated NanoPi NEO/Air/NEO2's USB 1
NEO USB 2	Populated NanoPi NEO/Air/NEO2's USB 2
USB to URAT	USB to Serial
Arduino interface	Arduino Interface
ICSP	ICSP Interface
UART select	UNO UART/NEO DEBUG Mode Switch
NEO GPIO	NEO GPIO Female Connector
NEO Debug UART	Populated NanoPi NEO/Air/NEO2's Serial Debug Port
NEO interface	Populated NanoPi NEO/Air/NEO2's Interface
Reset	UNO Reset

3 Connect UNO Dock V2.0 for NanoPi NEO to NanoPi NEO/Air/NEO2

3.1 Connect to NanoPi NEO/Air/NEO2

Currently the applicable boards are FriendlyElec's NanoPi NEO/Air/NEO2.
The module can be stacked on a NanoPi NEO/Air/NEO2. Here is a hardware setup:

3.2 Install BakeBit Software

• Step 1 - SSH to a master device(NanoPi NEO/Air/NEO2) via ssh and download the BakeBit code from github:

cd  ~
git clone https://github.com/friendlyarm/BakeBit.git

• Step 2 - Install BakeBit software packages by running the following commands:

cd BakeBit/Script
chmod +x install.sh
./install.sh

• Step 3 - Reboot:

reboot

• Step 4 - Test UNO Dock V2.0 for NanoPi NEO:

Connect a BakeBit LED module to a UNO Dock V2.0 for NanoPi NEO by linking the LED module's SIG pin to the Dock's D3 and run the following command:

python ~/BakeBit/Software/Python/grove_led_blink.py

If the LED blinks it means the UNO Dock V2.0 for NanoPi NEO works!

4 Setup Arduino on UNO Dock V2.0 for NanoPi NEO

• Step 1:use a jumper in place of "UNO-UART", connect the Dock to a PC host with a USB cable and power the Dock with a 12V DC power source
• Step 2:check the device name in your PC's device manager. In our test case it was "COM2".
  

• Step 3:download Arduino IDE Arduino IDE Download Link

Setup development environment:
1. Tools -> Board ->Arduino Nano


2. Tools -> Processor ->ATmega328


3. Tools -> Port ->COM2(the device name you find in your PC)

• Step 4: click on "upload".

After Arduino IDE shows uploading success you can start playing with your UNO Dock!

5 注意

使用Arduino IDE软件下载Arduino程序后，会覆盖UNO Dock V2.0 for NanoPi NEO单片机中的固件，如果此时回到NanoPi NEO/Air/NEO2上使用UNO Dock V2.0 for NanoPi NEO，需要先给UNO Dock V2.0 for NanoPi NEO下载固件，固件源码已上传到github，直接使用Arduino IDE上传即可。
固件源码下载地址

6 Resources

• [Schematic](UNO Dock V2.0 for NanoPi NEO.pdf)
• [Dimension](UNO Dock V2.0 for NanoPi NEO Dimension.rar)