Getting Started with M2 Zero

Introduction

Overview Banana Pi BPI-M2 ZERO

Overview: BPI-M2Z raspbian

Android 4.4

Ubuntu Linux

• 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 image, 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 bpi-tools repo 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

Using RPi.GPIO

• cd /usr/local/bin
• Execute "./bpi_test_g40.py" to test RPi.GPIO

WiringPi

• GitHub: https://github.com/BPI-SINOVOIP/BPI-WiringPi2.git
• We also have built-in test command in "/usr/local/bin"

How to Update WiringPi

• Execute "bpi-update -c pkglist.conf"

• Execute "bpi-update -c bpi-pkg-bpi-wiringpi.conf"

RGB 1602 LCD

• Execute "/usr/local/bin/bpi_test_lcd1602.sh"

0.96 Inch OLED Display

• Execute "/usr/local/bin/bpi_test_52pi.sh"

8x8 RGB LED Martix

• Firstly you need a GPIO Extend Board for 8x8 LED Martix

• Execute "/usr/local/bin/bpi_test_gpio40.sh"