When running script by ./blynk-ser.sh -s 192.168.0.102 it shows as follows:
Connecting: FILE:/dev/ttyUSB0,raw,echo=0,clocal=1,cs8,nonblock=1,b9600 <-> openssl-connect:192.168.0.102:9441,cafile=/home/pi/Blynk_library/libraries/Blynk/scripts/certs/server.crt,nodelay
2018/05/11 09:36:17 socat[3452] N opening character device “/dev/ttyUSB0” for reading and writing
2018/05/11 09:36:17 socat[3452] N opening connection to AF=2 192.168.0.102:9441
2018/05/11 09:36:17 socat[3452] E connect(4, AF=2 192.168.0.102:9441, 16): Connection refused
2018/05/11 09:36:17 socat[3452] N exit(1)
Result is no connection…
When running script by ./blynk-ser.sh, it shows as follows:
Connecting: FILE:/dev/ttyUSB0,raw,echo=0,clocal=1,cs8,nonblock=1,b9600 <-> openssl-connect:blynk-cloud.com:8441,cafile=/home/pi/Blynk_library/libraries/Blynk/scripts/certs/server.crt,nodelay
2018/05/11 09:37:21 socat[3486] N opening character device “/dev/ttyUSB0” for reading and writing
2018/05/11 09:37:21 socat[3486] N opening connection to AF=2 188.166.206.43:8441
2018/05/11 09:37:21 socat[3486] N successfully connected from local address AF=2 192.168.0.102:54403
2018/05/11 09:37:21 socat[3486] N SSL connection using ECDHE-RSA-AES128-GCM-SHA256
2018/05/11 09:37:21 socat[3486] N starting data transfer loop with FDs [3,3] and [4,4]