User's Manual

DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual

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Data:

Sent data, the maximum length is 1000 bytes.

Summary:

The following example for reference.

UART Data: 【0x55 0xaa 0x00 0x0a 0x00 0x00 0x00 0x21 0x00 0x85 0x00 0xA8 0xC0 0x01 0x0f】

Length: 【0x00 0x0a】

Function Byte:【0x00 (UDP;Short connection;IP;cut protocol)】

Destination Port:【0x21 0x00(33)】

Target Address:【0x85 0x00 0xA8 0xC0 (192.168.0.133)】

Data:【0x01(data:1)】

Sum Check:【0x0f (0x00+0x00+0x00+0x21+0x00+0x85+0x00+0xA8+0xC0+0x01=0x0f)】

3.2.3. HTTPD Client Mode

This mode is used to send data to HTTP server. It can be set by AT command or Webpage(Note

that AT+NETP and AT+TCPB channel is no long valid in this mode), it is long connection by

default.

The following shows example to use this.

Step 1：Set HTTP Command

AT+TMODE=Httpdclient

AT+HTPMODE=new

AT+HTPSV=10.10.100.200,80

AT+HTPTP=GET

AT+HTPURL=/abcd

AT+HTPHEAD=Content-type:text/html;charset=utf-8

AT+Z

Step 2：send abcd data and the device will send the following GET request to the HTTP

server.

GET /abcdabcd HTTP/1.1

Content-type:text/html;charset=utf-8