HF HF2411 - At+Getip; At+Ping; At+Gslq; At+Gsmst

4G_2G DTU Products Function
http://www.iotworkshop.com - 47 -
◼ Parameter:
◆ url: Upgrade url address.
Ex: AT+GOTA=http://download.iotworkshop.com/iotbridge/firmwares/4GLTE/4G_V1.575_7ed2afca1cf4919f40346f3f23403594.bin
There is upgrade status information.
2.4.2.39. AT+GETIP
◼ Function: Query the IP address of the specified domain name.
◼ Format:
◆ Query Operation
AT+GETIP<CR>
+ok=<”domain_name” ><CR><LF><CR><LF>
◼ Parameter:
◆ “domain_name”: The domain name that needs to be queried for the IP address.
2.4.2.40. AT+PING
◼ Function: Query Whether the Address is Reachable.
◼ Format:
◆ Query Operation:
AT+PING=<IP><CR>
+ok=<value><CR><LF><CR><LF>
◼ Parameter:
◆ iP: IP address or domain name.
◆ value: Success or failure
⚫ success: Success.
⚫ fail: Failure.
2.4.2.41. AT+GSLQ
◼ Function: Query GPRS Signal Strength.
◼ Format:
◆ Query Operation:
AT+GSLQ<CR>
+ok=<status,ret><CR><LF><CR><LF>
◼ Parameter:
◆ state: Signal strength description, including:
⚫ 0: Disconnect.
⚫ 1: Connect.
◆ ret: Signal strength value, the range is 0-31.
2.4.2.42. AT+GSMST
◼ Function: Query GSM status.
◼ Format: