2.3. Run the demo (multi-sandbox) using prebuilt binaries

To run the demo using prebuilt binaries:

1. Start the kernel:

   • Upload the kernel to the module.

     {Cinterion SDK}/tools> python app.py download -n kernel {Package}/binaries/{target}/cinterion-{target}-demo-kernel-{version}.bin
     

   • Install the kernel:

     {Cinterion SDK}/tools> python app.py install kernel
     

   • Start the kernel:

     {Cinterion SDK}/tools> python app.py start kernel
     

   • The kernel should start and wait for the application:

     DAM main
     MicroEJ START
     [kernel] Waiting for application file /app.fo
     

2. Start the application:

   • Upload the application to the module:

     {Cinterion SDK}/tools> python fs.py download {Package}/binaries/{target}/cinterion-{target}-demo-application-{version}.fo A:/app.fo
     

   • The application should be detected and started:

     DAM main
     MicroEJ START
     [kernel] Waiting for application file /app.fo
     [kernel] Installing /app.fo
     [kernel] Installed cinteriondemo
     [kernel] Started cinteriondemo
     [kernel] Waiting for patch file /app.patch
     [demo-app][gnss-helper] Stopping the GNSS engine
     [demo-app][net-helper] Setting normal mode
     [demo-app][net-helper] Unlocking the SIM
     [demo-app][net-helper] Attaching the network (May take a while)
     [demo-app][net-helper] Configuring PDP context
     [demo-app][net-helper] Activating PDP session
     [demo-app][mqtt-client] Connecting to broker: mqtt://broker.hivemq.com:1883
     [demo-app][notification] [hello] Hello World! I am running on EXS82
     [demo-app][temperature] Enabling the temperature monitoring
     [demo-app][temperature] Getting the temperature
     [demo-app][temperature] Temperature available
     [demo-app][notification] [temperature] 27°C
     

     Note

     The above log is taken from the application running on the EXS82 module.

     On the PLS63 module, it will display [demo-app][notification] [hello] Hello World! I am running on PLS63 instead.

   • The demo application sends data to MQTT topics matching /cinterion/vee/demo/#. Subscribe with this wildcard to see all messages sent by the device.

     

3. Update the application:

   • Upload the patch file to the module:

     {Cinterion SDK}/tools> python fs.py download {Package}/binaries/{target}/cinterion-{target}-demo-application-{version}.patch A:/app.patch
     

   • The patch file should be detected and applied on the application:

     DAM main
     MicroEJ START
     [kernel] Waiting for application file /app.fo
     [kernel] Installing /app.fo
     [kernel] Installed cinteriondemo
     [kernel] Started cinteriondemo
     [kernel] Waiting for patch file /app.patch
     [demo-app][gnss-helper] Stopping the GNSS engine
     [demo-app][net-helper] Setting normal mode
     [demo-app][net-helper] Unlocking the SIM
     [demo-app][net-helper] Attaching the network (May take a while)
     [demo-app][net-helper] Configuring PDP context
     [demo-app][net-helper] Activating PDP session
     [demo-app][mqtt-client] Connecting to broker: mqtt://broker.hivemq.com:1883
     [demo-app][notification] [hello] Hello World! I am running on EXS82
     [demo-app][temperature] Enabling the temperature monitoring
     [demo-app][temperature] Getting the temperature
     [demo-app][temperature] Temperature available
     [demo-app][notification] [temperature] 80°F
     

   • After the update, the application should send the temperature in °F to the /cinterion/vee/demo/# topic of the MQTT broker:

     

4. To change the application configuration:

   • Edit and re-upload the configuration file

   • Restart the kernel:

     {Cinterion SDK}/tools> python app.py stop kernel
     {Cinterion SDK}/tools> python app.py start kernel