PARS EchoLink

This EchoLink Node Configuration is based on the article by AP2CJ.

Before running, ensure you have Docker installed. This build is meant to be deployed to a balenaOS host, and depends on a host with ALSA.

Required variables:

• ECHOLINK_CALL: Echolink callsign
• ECHOLINK_PASS: Echolink password
• AUTH_KEY: The auth key for the device

Optional variables:

• ENV: Set this to dev to trigger the station to call out its ID every 45 seconds
• TIMEZONE: Set this to your local time. The default is PKT, but you may want UTC
• PAPERTRAIL_HOST: Send logs to Papertrail for easier debugging.
• PAPERTRAIL_PORT: Send logs to Papertrail for easier debugging.

Helpful commands:

• aplay -l: to list available sound devices
• dmesg | awk '/tty/ && /USB/ {print "/dev/"$10}'|tail -1: shows the USB device serial cable plugged in

Testing

Note that during testing you cannot run Balena Cloud environment variables. Pass them through docker compose or your Dockerfile.

Prelude:

• Ensure you have a local development version of balena running
• Ensure the local host has a USB sound card attached

To test, push to the host with:

balena push $balena_dev_device

TODO:

• Fix environment variables in intermediate container
• deploy via balena cloud
• Finish dev
• Expose public ports