Difference between revisions of "Raspberry PI"
| Line 56: | Line 56: | ||
= Bluetooth = | = Bluetooth = | ||
| + | To use a Bluetooth dongle like {{Link|target=OBDLink_LX}} you need to first pair the device: | ||
| + | |||
see https://www.raspberrypi.org/forums/viewtopic.php?t=214373 | see https://www.raspberrypi.org/forums/viewtopic.php?t=214373 | ||
== check connection == | == check connection == | ||
| Line 81: | Line 83: | ||
quit | quit | ||
</source> | </source> | ||
| − | == Example script == | + | == Redirecting bluetooth to TCP/IP == |
| + | There is a helper script obdii_blue available that you can use to redirect the bluetooth device to tcip/ip. | ||
| + | === Example script call === | ||
<source lang='bash'> | <source lang='bash'> | ||
#!/bin/bash | #!/bin/bash | ||
Revision as of 10:21, 24 January 2019
To run on a Raspberry PI you need a properly configured device. See e.g. http://ion.bitplan.com/index.php/Ion2017-07-18#Raspberry_PI
Hardware
See e.g.
Raspberry Setup
You'll find setup guides all over the internet here are just two links:
- https://www.macworld.co.uk/how-to/mac/how-to-set-up-raspberry-pi-3-with-mac-3637490/
- https://www.raspberrypi.org/downloads/raspbian/
Software configuration
cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
Java 8 installation
apt-get install oracle-java8-jdk
Run script
If you have an official touchscreen you can control the brightness of the screen with the darkmode button of can4eve.
You might want to make sure that you use the run script to start the app. The important lines are:
sudo chmod 0664 /sys/class/backlight/rpi_backlight/brightness
sudo chown root.pi /sys/class/backlight/rpi_backlight/brightness
Autostart
Example Can4Eve.desktop file to be placed in .config/autostart of your user. Please adapt the exec line to where you installed can4eve
[Desktop Entry]
Type=Application
Name=Can4Eve
Comment=Onboard Diagnostic software for Electric Vehicles
NoDisplay=false
Exec=/home/wf/source/java/can4eve/run
You can make the desktop shortcut available on your desktop by creating a symbolic link from your Desktop
cd $HOME/Desktop
ln -s /home/wf/.config/autostart/Can4Eve.desktop
Bluetooth
To use a Bluetooth dongle like OBDLink_LX you need to first pair the device:
see https://www.raspberrypi.org/forums/viewtopic.php?t=214373
check connection
Bluetooth services
service bluetooth status
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
Active: active (running) since Thu 2019-01-24 08:51:05 CET; 3min 2s ago
Docs: man:bluetoothd(8)
Main PID: 849 (bluetoothd)
Status: "Running"
CGroup: /system.slice/bluetooth.service
└─849 /usr/lib/bluetooth/bluetoothd
Pairing
Pair the device using the Graphical User Interface Bluetooth button in the top right. You will not be able to connect the message is "Connection failed - No usabel services on this device". We'll work around this with some python helper software Check result with commmand line:
bluetoothctl
[NEW] Controller B8:27:EB:2E:AB:2B pito [default]
[NEW] Device 00:04:3E:9F:A3:C0 OBDLink LX
quit
Redirecting bluetooth to TCP/IP
There is a helper script obdii_blue available that you can use to redirect the bluetooth device to tcip/ip.
Example script call
#!/bin/bash
# WF 2019-01-24
cd $HOME/source/java/can4eve/can4eve_bluetooth
./obdii_blue 00:04:3E:9F:A3:C0