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Mihini/Run Mihini on an Open Hardware platform
This page describes a scenario for illustrating the use of Mihini on an Open Hardware Linux-based platform such as BeagleBoard or RaspberryPi.
The goal would be for someone to be able to be only one hour away from taking a bare development board and have it configured to collect data out of the GPIO sensors and send this data on a remote server. The application should be updatable over-the-air.
Contents
- 1 Step 1 - Build Mihini
- 2 Step 1 (alternative) - Get a ready-to-use "Mihini for XXX" SD card binary image
- 3 Step 2 - Configure network connection
- 4 Step 3 - Configure Mihini
- 5 Step 4 - Setup Koneki environment
- 6 Step 5 - Create your first application
- 7 Step 6 - Test the application
- 8 Step 7 - Install your application over the air
- 9 MISC. TIP & TRICKS
Step 1 - Build Mihini
- Download the sources
- Cross-compile (or compile directly on the target) the Mihini runtime
- TODO at that stage, can we try to create a dpkg? That'd be very useful...
Step 1 (alternative) - Get a ready-to-use "Mihini for XXX" SD card binary image
- Download a ready-to-use .img file and put it on the SD card used on the development board
Step 2 - Configure network connection
3G connection
- apt-get install ppp
- http://mycusthelp.net/SIERRAWIRELESS/_cs/AnswerDetail.aspx?sSessionID=&aid=5#Connecting_using_PPPD
Ethernet connection
- Configure/verifiy that there is Ethernet connection as a fall-back
Step 3 - Configure Mihini
- Enable the application container
- Enable (and configure) the update manager (?)
Step 4 - Setup Koneki environment
- Download Lua Development Tools
- Install "Mihini target management"
- Configure the "Mihini execution environment" (provides nice autocompletion...)
Step 5 - Create your first application
- TODO (blink a LED, use a touch sensor, measure the temperature and available RAM of the board...)
Step 6 - Test the application
- Configure the remote target in the Koneki environment
- You will need to know the IP address of the target, but you likely know it already :-)
- Create a launch/debug configuration and test your script
Step 7 - Install your application over the air
- Use the Koneki tools to create an application package
- Deploy the package on a publically available web server
- Connect to the Mihini console and for a connection to the testing server
MISC. TIP & TRICKS
- You may want to have udev rules so as your USB devices (typically the 3G stick) does not end up having an always changing /dev/ttyUSB<something> file descriptor...
- For a Sierra 3G stick, create a 99-aircard.rules in /etc/udev/rules.d, with the following rules (your ID_VENDOR_ID and ID_MODEL_ID may be different):
SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ENV{ID_VENDOR_ID}=="1199", ENV{ID_MODEL_ID}=="68a3", ENV{ID_USB_INTERFACE_NUM}=="03", SYMLINK+="ttyATConsole0"
SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ENV{ID_VENDOR_ID}=="1199", ENV{ID_MODEL_ID}=="68a3", ENV{ID_USB_INTERFACE_NUM}=="04", SYMLINK+="ttyATConsole1"
- For a serial-USB adapter: http://hintshop.ludvig.co.nz/show/persistent-names-usb-serial-devices/
- Below is a template of the defaultconfig.lua that you should use to have most of the important features (appmon, updatemanager, ...) of Mihini enabled
TODO