Hi panagiotis, i am using your code over a year with no problem. But now i make some modifications in ordered to stay online with the SP6000 the wemos. i am running the panelstatus commands evry 20 seconds in order to have the paradox status. But as it started well after it crashes. something goes wrong with serialread and serialreadquick.
as example. paradox is sending:
52 00 80 00 00 00 00 00 00 14 14 04 06 10 0a cd 9a 97 00 03 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20
52 00 80 01 00 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 02 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 d9
52 00 80 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d4
at paradox status 0,1,2 request and the wemos is reading:
D4 52 08 00 00 00 01 41 44 61 01 9D 09 A9 70 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
20 52 08 01 00 00 00 00 00 00 03 00 20 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
D9 52 08 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Suddenly it crash and is reading as fisrt byte the checksum from the previous message and also loses some bytes.
Do you have any suggestion??
Its happening one or two hours later from the begining.