Advantech RSB-3720 User Manual page 47

ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=54 time=2.10 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=54 time=2.10 ms
 Test Bluetooth (EWM-W163M201E - USB)
$ hciconfig hci0 up
$ bluetoothctl
$ discoverable on
$ pairable on
$ scan on
[NEW] FC:18:3C:8D:75:F4 myphone
$ scan off
$ pair FC:18:3C:8D:75:F4
$ connect FC:18:3C:8D:75:F4

RS-232 test
 Loopback test (eg. ttymxc1)
# stty -F /dev/ttymxc1 -echo -onlcr 115200
# cat /dev/ttymxc1 &
# echo "Serial Port Test" > /dev/ttymxc1

RS-485 test

Set GPIO#496, #497 Set to 0,1

Test RS-485 with Adam-4520.
#./enable485 /dev
#stty -F /dev/ttyLP1 speed 115200 ignbrk -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -
iexten -echo -echoe -echok -echoctl -echoke
#cat /dev/ttymxc2 &
#echo test > /dev/ttymxc2

I2C test

Check i2c device(audio codec : 0-000a)
/
ttymxc2