USR-DR404 user manual
Jinan USR IOT Technology Limited
81
+ok=<sta.><CR>< LF ><CR>< LF >
Setting: AT+ HEARTTP =<NET/COM><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:
When querying, sta.: returns heartbeat package sending type, including
NET, heartbeat package is sent to network
COM, heartbeat package is sent to serial port
Parameter takes affect after restarting the module.
4.3.4.59. AT+HEARTDT
Function: Query/Set heartbeat package data
Format:
Query : AT+HEARTDT<CR>
+ok=<usr><CR><LF><CR><LF>
Setting: AT+HEARTDT=<usr><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:
usr: Length is limited to 40 characters. HEX format.
For example: heartbeat package data:
“77 77 77 2E 75 73 72 2E 63 6E” in HEX.
AT+REGUSR=7777772E7573722E636E
4.3.4.60. AT+HEARTTM
Function: Query/Set heartbeat package sending interval
Format:
Query : AT+ HEARTTM<CR>
+ok=<time><CR>< LF ><CR>< LF >
Setting: AT+ HEARTTM=<time ><CR>
+ok<CR>< LF ><CR>< LF >
Parameters:
time.: heartbeat package sending interval, 1~65535s, default is 30s.
4.3.4.61. AT+REBOOTEN
Function: Enable/Disable timing restart function
