So what happens when a packet is sent when you're in sleep mode? Does the device have to renegotiate the connection when waking up?
What if you sold a separate device that plugged in the wall and had a constant wifi connection, then used BT4 for communicating with the lock powered by 4xAA? Then you wouldn't even need wifi on the lock.
Also, why an arduino mega? Are you using that many I/O pins or is it because your code needs the 256KB of flash?
What if you sold a separate device that plugged in the wall and had a constant wifi connection, then used BT4 for communicating with the lock powered by 4xAA? Then you wouldn't even need wifi on the lock.
Also, why an arduino mega? Are you using that many I/O pins or is it because your code needs the 256KB of flash?