There are a number of Morse Code translators available on the internet to make it easier to set challenges for the students to decode.

https://cryptii.com/text/morsecode

http://www.onlineconversion.com/morse_code.htm

There are also some good references to explore the history of morse code (and of course, google is your friend - there is a ton of material out there)

http://www.wrvmuseum.org/morsecodehistory.htm

http://www.history.com/topics/inventions/telegraph

https://nrich.maths.org/2198

https://www.asgmag.com/features/hath-god-wrought-dots-dashes/

At Day Zero, we had planned to use the light in the tricorder to create the dots and dashes to send messages to others around the quad area at night, you can also use sound (the way it is recommended to learn Morse Code apparently) or any other binary option (two different colours, 1’s and 0’s, etc to play around with the code.

One for you to play with from Commander Forrest:

In the example below, the letters are separated by spaces, the words are separated by the forward slash “/”

.-- .... .- - / ..-. .-.. .. . ... / ..- -. -.. . .-. .-- .- - . .-.

.- / .--. .- .-. .-. --- - / .. -. / .- / ... ..- -... -- .- .-. .. -. .