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USR-DR504-E User Manual
Jinan USR IOT Technology Limited
Tech Support: h.usriot.com
42
{CR}{LF}“ip_adress”{CR}{LF}{CR}{LF}
{CR}{LF}+MPING: <ip_address>,<serrier num>,<rtt>{CR}{LF}{CR}{LF}
Parameters:
< ip_address >: ip address
< serrier num >: send ping data packet ‘s order
< rtt >: response time
E. g: AT+PING=”www. baidu. com”
23. AT+UART
Function: Query/Setting the serial port parameters
Format:
AT+UART{CR} or AT+UART?{CR}
{CR}{LF}+UART:baud,data bit,stop bit,parity {CR}{LF}{CR}{LF}
Setting:
AT+UART=baud,data bit,stop bit,parity {CR}
{CR}{LF}OK{CR}{LF}
Parameters:
Baud:band rate:2400,4800,9600,14400,19200, 28800, 33600,38400,57600,115200,230400,460800
Default rate 115200.
data bit: data bit , inclouding:
8: 8 data bits.
Default data bit :8.
stop bit: stop bit , including:
1: 1 stop bit.
2: 2 stop bits.
Default 1 stop bit.
parity: Checking methods, including:
NONE: NO check.
ODD: ODD check.
EVEN: EVEN check.
Default is NONE.
E. g:: AT+UART=115200,8,1,NONE.
24. AT+UARTFT
Function: Query/Setting interval packet time of serial port
Format:
AT+UARTFT{CR} or AT+UARTFT?{CR}
{CR}{LF}+UARTFT:time{CR}{LF}{CR}{LF}
Setting:
AT+UARTFT=time{CR}
{CR}{LF}OK{CR}{LF}