• In starting phase there is an auto-tune which requires traffic
• There are at least some CRC errors

Send package¶

• find free slot
• store essage there
• Send it via RFM69

Receive package¶

• If type is "Acknowledge"
  • find corresponding message
  • mark slot as free
• If regular message
  • fill it in the receive buffer
  • directly send acknowledge via RFM69

Loop¶

• iterate Slots
• If message is older than ??ms, perform an resend

Open points¶

• Acknowledge gets lost; retransmit started
  • last-id for every net. Drop message if it matches

• RFM-Class receives messages in ISR as fast as possible. Sending acknowledge is done in the loop.
  • Order should be preserved.
  • Makes things super slow