USR-GPRS232-730 User Manual h.usriot.com
Jinan USR IOT Technology Limited / 45 www.usriot.com
AT commands work in query-reply mode, “query” means device sends commands to module, “reply”
means module responds to device.
<Note>
Characters in command is case insensitive.
content inside is necessary
content inside is not necessary
content inside is with particular meaning
range, for example, A~B means the range is from A to B
carriage return in ASCII, 0x0D in hex
line feed in ASCII, 0x0A in hex