Enable JS (Press red top just in case things went wrong 1st time) and then press Green flag
It takes quite a while to set itself up
At the moment, its best to leave the MQTT option on replay/status as the craft is currently being re-fitted with a new generator back in Plymouth but hopefully it'll be out and about in the next few weeks again
You can use the dropdown menus to select different looking maps - sometimes these take while to load - patience is required
You can use the pan arrows to move the map around but if your in tracking mode - the map will auto-centre again on next data update
To zoom in and out you can either use the buttons or the dropdown
The dropdowns can be a bit slow (depending upon your hardware) as they are all just coded up in Snap!
Once Snap! 7 gets released, I aim to hopefully make my custom costumes reporters into JS extensions that should run a lot faster
It is supplying data using a protocol called MQTT.
It sends the data over a satellite radio link.
The concept behind MQTT is that you have a program running on a central server somewhere (which is called a broker) and a program running on what's called a client (such as the Mayflower) sending (what is called publishing) messages to it that get stored on the broker.
So its like a simple database in that respect
The clever bit is that a another program (such as my Snap! program) can ask to be updated anytime a new message is received by the broker. This is called subscribing.
Normally a program would have to keep checking the central database to see if records have been updated - in this case, the broker keeps track of who is interested in what information and automatically sends any changes out