pair fs20-uws with address cccc02 (e.g.)

#picocom -b 38400 /dev/ttyCUL0 V Fcccc021b Fcccc023697

F -> FS20 protocol

cccc -> housecode

02 -> device address (ignoring all recommendations for proper master addressing)

36 -> programm internal timer

97 -> (2^9)***7***0.25sec = 14min

see also: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/fs20pcs