“Hello, is this planet earth ?” – Programming a LEGO rover to communicate using light

In this activity, you will communicate with a rover on Mars. The objective of your mission is to send an automatic message from Earth to a rover located on Mars via an Orbiter. This message is sent by a programmed, LEGO-built, robot running an automatic
switch. The rover on Mars receives the code via a LEGO light sensor, and you will need to analyse and model the data to translate the
message.