Hamchron

A simple clock that shows UTC and local time, shows space weather, spots from PSKReporter, gray line etc.,

View a demo HERE

I gather data from the following places:

• PSK Reporter
• PSK Reporter MQTT
• N0NBH/HamQSL

This application is a learning experience for me. This is written in elixir, phoenix & tailwind css.

This software is still very alpha, but is running on a Inovato Quadra.

I used Burrito to compile the binary to be used on the Quadra.

Thanks to the creator of Hamclock for creating a great tool for inspiration.

My Call: NB8F

How to run

• Go to releases and download the latest version.
• You can run this a couple of ways. If you just want to test it out you can run.

PHX_SERVER=1 CALLSIGN=<YOURCALL> GRID_SQUARE=<YOUR_GRID> SECRET_KEY_BASE=<64 chars string> ./hamchron_(OS)_(ARCH)

You can also use the services file that is located in support to create a systemd service to run.

• From here open a web browser and go to http://localhost:8888 and you should see the web based hamchron.

RECOMMENDED - My favorite method:

• Install DietPI on a RasberryPI.
• Use Kiosk mode. DietPi Kiosk
• Make sure the hamchron binary is set to run at boot using the service scrpit provided in the support folder.
• Set the kiosk config to run http://localhost:8888 at start up. Will run a stand alone Hamchron.

Another way to run / online.

• You can run this on your own web service as well. I use fly.io for the demo there are free and cheap ($5 mo) packages.

Yet another way

• You can download this repo and run the app yourelf.

Things I had to learn

• Elixir/Phoenix (still learning)
• How to convert a grid square to a latitude / longitude.

Things I still have to learn

• How to write cleaner/more performant elixir.
• How to test elixir/phoenix.

Features

• Gets space weather from N0NBH every hour.
• Gets sun images every hour.
• Realtime spots (1000) from PSK Reporter, dynamically updated.
• Display spots on the map and highlight them by band.
  • Popup that shows the Callsign, Band, Mode & Grid Square heard when clicked on.
• Layer filter to see spots by band instead of all.

Future

• Would like to map contacts from QRZ and display on the map as well.
• Improve download/deploy.

Development

To start your Phoenix server:

• Run mix setup to install and setup dependencies
• Start Phoenix endpoint with mix phx.server or inside IEx with iex -S mix phx.server

Now you can visit localhost:4000 from your browser.

Learn more

• Official website: https://www.phoenixframework.org/
• Guides: https://hexdocs.pm/phoenix/overview.html
• Docs: https://hexdocs.pm/phoenix
• Forum: https://elixirforum.com/c/phoenix-forum
• Source: https://github.com/phoenixframework/phoenix