Banana pi ------ Getting Started with M2 Zero

BPI-M2 Zero

Read more about : Banana Pi BPI-ZERO

BPI-M2 Zero

Banana Pi M2 Zero is an ultra compact single board computer measures only 60mm*30mm. It uses quad-core Cortex A7 allwinner H2+ processor, with 512MB RAM memory. It's ideal for light-weight systems with some space-limited applications. Like other members of Banana Pi, it supports both linux and android operating system.

Key Features

Quad Core ARM Cortex A7 CPU H2+
512MB SDRAM.
WiFi (AP6212) & Bluetooth onboard.
Mini HDMI.

Development

Basic Development

Prepare to develop

 * Prepare 8G/above TF card, USB-Serial interface, PC with Ubuntu System
 * Using your USB-Serial Connect debug console on M2 Zero

Install Linux Image on M2 Zero

Download latest Linux image11111111111111111, default login user/password is pi/bananapi or root/bananapi.

Install Image to SDcard on Linux PC with bpi-tools

1. Install bpi-tools on your system

   $ apt-get install pv
   $ curl -sL https://github.com/BPI-SINOVOIP/bpi-tools/raw/master/bpi-tools | sudo -E bash

If you can't access this URL or any other problems, please go to Balena Etcher and install this tools manually.

2. Insert your SDcard into your PC

   $ bpi-copy xxx.img /dev/sdx

Install Image to SDcard with Ether on Windows, Linux and MacOS
Balena Etcher is an open source project by Balena, Flash OS images to SD cards & USB drives

Install Image to EMMC with SD Ubuntu

1.Prepare a sd which is installed ubuntu image and bootup with sdcard

2.Copy emmc image to udisk, plug in board, then mount udisk.

3.After mount udisk, use command "bpi-copy xxx-emmc-xxx.img" to install image on Emmc.

4.After success install, power off the board, eject the sdcard and poweron with emmc boot.

Update your image

1. Get the m2 zero bsp source code

   $ git clone https://github.com/BPI-SINOVOIP/BPI-M2P-bsp-4.4

2. Build the source code according to the README.md, and update the packages to the sdcard with bpi image flashed.

Advanced Development

How to create an image

Prepare a SD card which have installed system(Ubuntu/Raspbian/..)
Boot your SD card with M2 Zero, after M2 Zero finish starting, copy your files and config your system, then poweroff M2 Zero. [If you don't want to config your system, you can skip this step]
Plug your SD card in PC(which is running Linux), "cd /media", then "ln -s <your account> pi"
Execute "bpi-migrate -c bpi-m2z.conf -c ubuntu-mate-from-sd.conf -d /dev/sdx"
Then you could get your own image now

OTG

1. On M2 Zero console:

Execute "./adbd.sh", then execute "ps -ax | grep adbd" to see if adbd is set up

2. On PC terminal:

If adbd was succeed to set up, insert OTG-USB interface to M2 Zero and PC(with Ubuntu system)
Execute "adb devices" to see if PC has recognised M2 ZeroP OTG
If yes, we could execute "adb shell" to connect M2 Zero by adb now

USB Ethernet

Prepare a USB to OTG wire, usb ethernet adapter

Use iperf3 to test network

Bluetooth

Use bluetoothctl tool to operate BT
Execute "bluetoothctl"
If you don't know how to use bluetoothctl, type "help", you will see more commands
Execute these commands:

WiFi Client

You have two ways to setup WiFi Client

1. Use commands to setup WiFi client

ip link set wlan0 up
iw dev wlan0 scan | grep SSID
vim /etc/wpasupplicant/wpa_supplicant.conf

network={    
ssid="ssid"    
psk="password"    
priority=1 
}

wpa_supplicant -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
dhclient wlan0

2. Use UI interface to setup WiFi Client

Clear boot

git clone https://github.com/BPI-SINOVOIP/BPI-files/tree/master/SD/100MB
bpi-bootsel BPI-cleanboot-8k.img.gz /dev/sdX

Camara function

We use HDF5640 camara.

Guvcview

Use your UI interface to operate camara
Applications -> Sound & Video -> guvcview

Shell

We also have built-in command in /usr/local/bin to test camara
"./test_ov5640_image_mode.sh" to test picture taking function
"./cameratest.sh" to test video recording function

Display

How to change display resolution

For Example： we change M2Z HDMI display 1080P.

1. First, mount /dev/mmcblk0p1 /mnt, then enter to /mnt/bananapi/bpi-m2z/linux, find "sys_config.fex";

2. "vim sys_config.fex", change "screen0_output_mode = 5" to "screen0_output_mode = 10"

3. After save changed, use "fex2bin" command to transfer sys_config.fex to bin file, "fex2bin sys_config.fex script.bin ", reboot.

parameters meaning：

BPI-Tools

Install Bpi-tools

Execute "curl -sL https://github.com/BPI-SINOVOIP/bpi-tools/raw/master/bpi-tools | sudo -E bash - "

Update Bpi-tools

Execute "bpi-tools"

RPi.GPIO

Install RPi.GPIO

Execute "git clone https://github.com/BPI-SINOVOIP/RPi.GPIO
after clone the repo, cd RPi,GPIO
Execute "sudo apt-get update"
Execute "sudo apt-get install python-dev python3-dev"
Execute "sudo python setup.py install" or "sudo python3 setup.py install" to install the module