Ubunut Core 16 Image User Documentation for Artik5 & Artik10 boards

Flash the image to SD card
==========================

Insert SD card to PC linux and use dd to flash the image to SD card

$ sudo dd if=artik10.img of=/dev/sdc bs=32M
$ sync

note: 
1. replace /dev/sdc with your SD card driver.
2. replace artik10.img with artik5.img if flash for artik5 board.


Boot the board
==============

The boards have a "SW2" switches to control booting board from SD card or eMMC flash.

 * Booting from SD card mode

Set "SW2" to 1:on and 2:on. u-boot will print following message:

Checking Boot Mode ... SDMMC

 * Booting from eMMC flash mode

Set "SW2" to 1:off and 2:off. u-boot will print following message:

Checking Boot Mode ... EMMC


Boot board from SD card
------------------------

Set "SW2" to booting from SD card mode.
And insert the SD card to the board and power on the board. The board will auto-boot to the system.

After booting up, the board will display the prompt “Press enter to configure”, press enter
and then select “Start” to begin configuring your network through WIFI and an administrator account.

After configuration, we can login the board through ssh.


Test functions
==============

Test WIFI
---------

If we have configured the WIFI during the first booting, the WIFI has already worked.
Otherwise we can configure WIFI manually by following way:

Create file /etc/network/interfaces.d/wlan0 and replace MYSSID and XXXXX with your
wlan credentials. And reboot to make sure all services pick up the network change:

allow-hotplug wlan0
iface wlan0 inet dhcp
    wpa-ssid MYSSID
    wpa-psk XXXXXXXXX


Test Bluetooth
--------------

Before test bluetooth, we need to connect two interfaces.
First login the board and run following commands:

$ snap connect artik-brcm-bt:serial-port artik10:brcm-bt-serial
$ snap connect artik-brcm-bt:network-control :network-control

And then reboot the board to test bluetooth.

note:
1. Replace artik10 with artik5 if running artik5 board.
2. Because A2DP profile is not supported by bluez in ubuntu core 16, connecting PC is not
   stable.