How do my bots share information with their teammates?

There are two ways. A radio (RAD-1) sends up to four numbers at a time to every teammate's radio, which gets them the next tick; it also tells each bot where its teammate is. The team notepad is one shared text of up to 1024 characters, built into every bot, that every bot on the team can read and write, and it's kept from one match to the next.