User's Manual

Content
1. Product profile .......................................................................................................................................................... 1
1.1 Overview ........................................................................................................................................................ 1
1.2 Product Characteristics ................................................................................................................................... 1
1.3 Product Packaging .......................................................................................................................................... 1
1.4 Technical Specifications ................................................................................................................................. 2
1.5 Pins introduction ............................................................................................................................................. 2
1.6 Interface definitions ........................................................................................................................................ 4
1.7 Mechanical dimensions .................................................................................................................................. 3
2. Functional Description.............................................................................................................................................. 5
2.1 Wifi indicator flashing description..................................................................................................................5
2.2 Wifi connection status indicator pin................................................................................................................6
2.3 Socket connection status indicator pin............................................................................................................6
2.4 One-Click distribution mode...........................................................................................................................6
2.5 Web distribution function................................................................................................................................7
2.6 Serial to WiFi STA..........................................................................................................................................8
2.7 Serial to WiFi AP ............................................................................................................................................ 8
2.8 Serial port working state conversion .............................................................................................................. 9
2.9 Serial port-network data conversion ............................................................................................................... 9
2.9.1 Module as TCP Server ........................................................................................................................ 9
2.9.2 Module as TCP Client ........................................................................................................................ 10
2.9.3 Module as UDP Server ...................................................................................................................... 10
2.9.4 Module as UDP Client ....................................................................................................................... 11
2.10 Application areas ........................................................................................................................................ 11
3. AT Instructions ........................................................................................................................................................ 11
3.1 Query current module version: at+ver .......................................................................................................... 12
3.2 Local port operation: at+CLport ................................................................................................................... 12
3.3 Set up serial Port:at+uart .............................................................................................................................. 11
3.4 Set up DHCP:at+dhcpc ................................................................................................................................. 11
3.5 Set up wifi connection mode:at+netmode..................................................................................................... 13
3.6 Set up tcp connection mode:at+mode ........................................................................................................... 13
3.7 Set up remote IP when modules work as client:at+remoteip ........................................................................ 13
3.8 Set up remote port when module act as client:at+remoteport ....................................................................... 13
3.9 Set parameter submission: at+net_commit ................................................................................................... 14
3.10 System restart or quit at command mode: at+reconn .................................................................................. 14
3.11 Set the module's ssid and password: at+wifi_conf ...................................................................................... 14
3.12 Set up socket connection Protocol: at+remotepro ...................................................................................... 14
3.13 Set network connection parameters: at+net_ip ........................................................................................... 14
3.14 Query network connection status in STA mode: at+wifi_ConState ............................................................ 15
3.15 Query module MAC address: at+Get_MAC .............................................................................................. 15
3.16 Set up frame length: at+uartpacklen............................................................................................................15
3.17 Set up frame time: at+uartpacktimeout ....................................................................................................... 18