Voyage of Light to Baltic Time

"Voyage of light to Baltic time" is a clock where the sea route between Turku (Finland) and Stockholm (Sweden) becomes the passage of time itself.

It is the LED lights follow a 24-hour journey of a scheduled ferry - the rhythm of the ship mirrored in light, time moving like the sea beneatht it.

Supplies are pretty much what you may expect for such project:

1. Your choice of Arduino
2. 16x2 display
3. RTC-clock
4. Programmable LED´s
5. Switch
6. Poster frame

Start your project by painting background to white, if not already provided..

Sketch the islands and other decorations as you like.

I used the video projector to display the map and sketched it to white.

The drilling of LED´s was quite straight forward since there is intermediate stop on halfway and it was easy to divide the route in sections.

The scheduling of LED´s was surpricing complex task, you must understand the ferry route and tricy parts of the fairway. I even considered the speed limits at some nights.

About the route between Turku and Stockholm has been written many books and there are countless amount of stories on those books.

However, maybe the easiest way might be to follow marinetraffic or other sites for live monitoring.

Yeah, I wanted to have visible clock on display and temperature reading came as additional feature from RTC-clock.

The lower line of screen is announcing the part of fairway where our ferry is sailing.

In our example the Airisto is open sea area in close to Turku, Finland, the Sottunga is small town in Aland Islands with only 101 residents.

All of the waypoints will have their own name ID and the clock will tell excatly where you are.

Yes, it is a bit mess. The finalisation could be improved. Anyhow, this is what it was at the end.

The USB-C is supplying power to all hardware. The switch is for daylight savings time.

And in case the RTC battery runs out, the clock will start at 2015 hrs.

Why? The ferry Baltic Princess will depart at that time.