Jaguar Land Rover HVAC demo app running on Exosense Device Stack.
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Exosense Device - Jaguar Land Rover Tizen IVI HVAC control demo

Building the Exosense JLR demo.

Follow the instructions under:


Replace meta-exodemo with meta-jlrdemo (the Yocto build layerfor this demo). The meta-sbc6845 layer, mentioned in the tutorial, will not be needed.

Setting up configuration files

After setting up the basic environment, as described in the tutorial, init the build environment with this command:

`. oe-init-build-env ../build`

Copy meta-jlrdemo/build_conf/*.conf into the conf subdirectory of the build directory you are currently in.

cp ../meta-jlrdemo/build_conf/*.conf conf

Build the RPM

Since the demo is installed on Tizen, we will not create a complete image, but rather a set of RPMs that can be installed on the standard demo.

Build the RPMs with:

bitbake erlang-jlrdemo

The rpms will be deposited in


Installing the Exosense JLR demo RPMs on the target system

All rpms to be copied over from the directory above to the target system are listed in

Once copied, install them all using a single rpm -i command

Setting up automatic launch during boot

There is a start script for the Exosense JLR demo installed on the target under:


This script also installs the pcan driver kernel module (unless already loaded).

Copy this script to /usr/sbin

/usr/lib/erlang/jlrdemo-*/priv/ /usr/sbin

Edit the uxlaunch systemd service in file:


Edit the ExecStart= line so that it looks like this:

ExecStart=/bin/sh /usr/sbin/ start

Note The /usr/sbin/, which will start the dashboard UI, and the /usr/sbin/ script is not provided by the Exosense RPMs. Please see the Tizen documentation for details on where to source this.

Upgrading the Exosense JLR demo

Be sure to remove the old package using rpm -e before installing the new version. Also be sure to execute the following command to wipe any old setup data.

rm -rf /root/setup