This application is meant to run on an autopi, to get a variety of information from the device over BTE (leveraging devices that have it, not 5.2 hw).

Compile for the AutoPi with

brew install --build-from-source upx
GOARCH=arm GOOS=linux go build -ldflags="-s -w -X 'main.Version=v1.0.0'" -o edge-network && upx edge-network

Binaries will build for releases from the workflow.

Copy to the AutoPi with, e.g.,

scp bin/edge-network [email protected]:~

Once edge-network is copied into the autopi, run this command to ssh into local autopi:

ssh [email protected]

For newer devices [7.0 and newer] password should be the first 13 digits INCLUDING dashes of your device id. Note that this is different that the unit id, although they are the same length. To get a CAN dump after getting into the autipi network, run the following command to get a CAN dump from your car:

./edge-network - candump [-cycles <qty>] [-send <chunk_size>]
e.g.
cmd.run "edge-network candump -cycles 1000 -send 100"
....would capture 1000 frames and send them in 100 frame chunks

This should create a file called testcandump.txt. Permissions may need to be altered if the file should be viewed. To do this, run the following command:

chmod 644 testcandump.txt
cat testcandump.txt

This should print testcandump.txt directly to the terminal.

Note that IP is the default IP address of the AutoPi when you connect to it's wifi. You'll need to connect to the AP local wifi. to be able to run the above command successfully. scp will also prompt for a password, ask internal dev for it. This should place the executable in the home directory. Then you can replace the existing systemctl edge-network that is running by:

• which edge-control
• sudo systemctl stop edge-network
• replace the binary (you'll need to decompres tar -xzvf the binary if needed)
• sudo systemctl start edge-network

The device should be discoverable under thr usual autopi-prefixed name via Bluetooth.

This runs as a systemd service. To see it's status from ap cloud: cmd.run 'systemctl status edge-network'

To check it out, Install BLE Scanner on the Mac/iOS. The when the AutoPi is on, with your vehicle ON, start up that app and find the autopi, connect to it - prefixed by autopi-. You'll see the advertised services match what is below in Commands. Click on the one you want to get the value.

Instead of building locally, you can also build in Github and then set the release URL for a specific device in the AutoPi cloud (ie. your device). Then do above again with BLE scanner to connect and test your changes. Note that you will only be able to pull data from the vehicle if it is on. Also, if the AutoPi is unable to connect to the network for whatever reason edge-network won't return data eg. the VIN. For example if you connec the AP to wifi, but it can't get an internet connection, this stuff won't work.

To view logs, from the AP cloud terminal, run the following: journalctl -u edge-network

    edge-network candump -cycles <cycle_count> -send <chunk_size> -save
    
To generate local can dump to single file:
   ./edge-network candump -cycles <cycle_count> -save
   
      example: ./edge-network candump -cycles 100 -save

To generate can dump and send over mqtt:
   ./edge-network candump -cycles <cycle_count> -send <chunk_size>
   
      example: ./edge-network candump -cycles 100 -send 50

To generate local can dump and send over mqtt, AND save local copies of chunked messages to file:
   ./edge-network candump -cycles <cycle_count> -send <chunk_size> -save
   
      example: ./edge-network candump -cycles 100 -send 50 -save

For the management calls, the process needs to have the CAP_NET_BIND_SERVICE capability.

• Device service 5c307fa4-6859-4d6c-a87b-8d2c98c9f6f0
  • Get Serial Number characteristic 5c305a11-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded Serial Number of the Unit
  • Get Secondary Serial Number characteristic 5c305a12-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded Secondary Serial Number of the Unit
  • Get Hardware Revision Number characteristic 5c305a13-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded HW Revision of the Unit
  • Get Software Version characteristic 5c305a18-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded Software Version Number of the Unit
  • Get Bluetooth Version Number characteristic 5c305a19-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded Bluetooth Version Number of the Unit
  • Get Signal Strength characteristic 5c305a14-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded Signal Strength of the Unit in dBm
  • Get Wifi connection status characteristic 5c305a15-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded SSID of current wifi connected to the unit
  • Set Wifi Connection characteristic 5c305a16-6859-4d6c-a87b-8d2c98c9f6f0
    • Write. Send in wifi SSID and Password in the json string form e.g. "{"network":"Wifi-4A91D0","password":"somePassword"}" response on success will be the network name
  • Get IMSI characteristic 5c305a21-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded IMSI of the SIM card
• Vehicle service 5c30d387-6859-4d6c-a87b-8d2c98c9f6f0
  • Get VIN characteristic 5c300acc-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded VIN
  • Get Protocol characteristic 5c300adc-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded Protocol supported, either "06" or "07"
  • Get Diagnostics Error Codes characteristic 5c300add-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the ASCII-encoded, comma delimited list of DTC error codes, if any
• Transactions service 5c30aade-6859-4d6c-a87b-8d2c98c9f6f0
  • Get Ethereum address characteristic 5c301dd2-6859-4d6c-a87b-8d2c98c9f6f0
    • Read. Return the 20 bytes of the Ethereum address for the device.
  • Sign hash characteristic 5c30e60f-6859-4d6c-a87b-8d2c98c9f6f0
    • Write. Send in the 32 bytes of a hash to be signed
    • Read. Return the 65 bytes of the signature for the last submitted hash. If something went wrong with the signing this will error.

We should do notifications but I assumed it would be too much of a change. Note that the UUIDs here only differ in bytes 3 and 4.

Missing:

• Get cell signal strength

1. Release a build, wait for Github action to complete
2. Select the desired vehicle in top right selector.
3. Go to advanced settings in AutoPi admin - https://dimo.autopi.io/#/advanced-settings
4. Look for Dimo setting and update the URL, basically just update the version. Note that the URL is a cloudflare bucket and not pointing directly to github because we were getting rate limited. The proxy code is here that automatically pulls binaries.dimo.zone from GH.

1. Release a build, wait for Github action to complete
2. Templates https://dimo.autopi.io/#/template
3. Select the Base template, or other specific templates
4. Configuration tab
5. Edit the Dimo > Edge-network > Url property updating the version portion of it.

Remove the current install: cmd.run 'rm /opt/autopi/edge-network_release.tar.gz'

Install the newest version of the edge-network, uses the URL configured in autopi cloud to download tar.gz state.sls dimo.install

Check to see if it is running: cmd.run 'systemctl status edge-network'

If you see this result: edge-network.service - DIMO Bluetooth Service Loaded: loaded (/lib/systemd/system/edge-network.service; disabled; vendor preset: enabled) Active: inactive (dead)

Start the service manually if didn't start after install: cmd.run 'systemctl start edge-network'

The -v command is important for the salt stack on the autopi to work correctly for managing the correct version to download. If not present, this will likely cause devices being unable to update and/or apply pending syncs, since the devices are using the edge-network -v call to confirm if the binary installation is working properly. It expects to see the version number of the binary.

Note that the Version is set via a build flag in the /.github/workflows/release.yaml via the ldflags.

Other CAN libraries: https://github.com/go-daq/canbus supports sending data on the bus eg PID fuel tank level: can-send vcan0 7DF#02012F5555555555