Architecture time!

The high-level goal of this project is to receive messages, display them on a screen, type messages and see a preview on the screen, and then send those messages. In our case to separate it up into three "subsystems." Each sub-system will interact with the other subsystems in a predefined way like the one I'm about to propose.

• There will be a function named updateDisplay() which will display the latest messages in the history array.
• Every time a message is received it will be fed into a function named receivedMSG(MSG). This function will add the message to a history array & call the updateDisplay() function.
• A variable named MSG_Draft will be set & updated by the keyboard subsystem to store the message the user is currently typing. A function named updateDisplay() will be called every time the draft is updated so that the display can be updated accordingly.
• A function named sendDraft() which will:
  1. Send the drafted message with sendMSG(MSG) which will send a message over LoRa
  2. Add the message to the history array
  3. Call updateDisplay() so the display will show the new message
  4. Delete the contents of MSG_Draft

Summery: Who will do what & how:

• I (@Evan) will implement the sendDraft(), and receivedMSG(MSG) functions
• @Cosmin (who is working on the display) will implement the updateDisplay() function which will display the contents of the history array the fit on the screen & the MSG_Draft.
• @j will implement the MSG_Draft variable setter which will call updateDisplay() every time it is modified with input from the keyboard.
• @Alex/@krisk will implement the sendMSG(MSG) function which will send the passed in text & when messages are received have them fed into the receivedMSG(MSG) function.

Please read all of the above! I spent 45 min writing it & it's important. If you have any questions or feel this structure could be improved for simplicity, message me on slack!