JP1 Remotes

Thanks all for the time consuming replies,
Yes I did lose count there with the byte numbering.
Think I have enough info to finish the job.
My question re lead-out time comes about since once having problems with NEC codes I made for a customer. The NEC protocol uses both seq1 and seq2 of thepronto ...

Thanks for the info.
I never did decipher the makehex method representing the protocol.
My understanding is basically as follows, reading bits from rhs to lhs using your first example, all hex numbers are msb -lsb reversed as usual.

First 2 bytes (2x 8 bit bytes) are the oem device code, always the ...

Hello JohnsFine,
Clarity needed re terminology ..Panasonic ir protocol
Device = address. cool I get that.
OBC stands for?.. and is it the sub-device address or the function/command number/data?
EFC stands for?.. or is it that the sub-device address or the function/command number, and does pronto ...