Beijing Winner Microelectronics WMSP02 WIFI module User Manual
Beijing Winner Microelectronics Co., Ltd. WIFI module
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![Beijing Winner Microelectronics Co., Ltd. 2.1.1 Syntax format Format description <>: Indicates the part must be included []: Indicates the optional part Command message AT+<CMD>[op][para1],[para2],[para3],[para4]…<CR> AT+: Command message prefix CMD: Command string [op] : Command operator, when the command requires parameter, it can specify the operation type of parameters, including, =, Parameter/returned value prefix characters =!, Synchronize the modified parameter to flash in the command of parameter setting type =?, Query the current setting in the command of parameter setting type <CR> : Enter. It is 0x0d in ASCII Response message +<RSP>[op][para1],[para2],[para3],[para4]…<CR><LF><CR><LF> +: Response message prefix RSP: Response string OK Success ERR Failure <CR>: Enter. It is 0x0d in ascii <LF>: Newline. It is 0x0a in ascii Data type String: String, enclosed by double quotation marks, but the content does not include the quotation marks, such as “this is a string”. Dec: Number in decimalist, such as 10 Hex: Number in hexadecimal, such as a Ip: IP address string, such as 192.168.0.1 MAC: Formed with 12 hexadecimal numbers, such as 001EE3A80102](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-8.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.1.3 AT+E Function: Switch serial command echo. Format (ASCII): AT+E<CR> +OK<CR><LF><CR><LF> Parameter: None 2.2.1.4 AT+ENTS Function: The system enters in sleeping mode. The system will be automatically awaked after receiving any at+ in sleeping state. Format (ASCII): AT+ENTS=[ps_type],[wake_type],[delay_time],[wake_time]<CR> +OK<CR><LF><CR><LF> Parameter: ps_type: power saving type Value Meaning 0 Sleep 1 Standby wake_type: awake type Value Meaning 0 gpio 1 Timer0 delay_time: delay time, only valid when timer0 wake, unit ms, 100 ～10000ms wake_time: wake time, only valid when timer0 wake, unit ms, 1000 ～65535ms](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-12.png)
![Beijing Winner Microelectronics Co., Ltd. Parameter: hard: hardware version information, string format, such as “H1.00.00.1029” firm: firmware version information, string format, such as “ F0.02.02@ 18:25:25 Jul 28 2010” time: time of firmware creation date: date of firmware creation 2.2.2 Parameter setting type 2.2.2.1 AT+NIP Function: When the module is STA, this command is used to set/query the local ip address. It should be noted that when the address type is set to DHCP, the actual dynamic IP address information of the module can’t be queried by using this command. AT+LKSTT command can be used to query. When the module as AP, this command is used to set/query the local ip address, enable and disable DHCP Server. It means that the meaning of the command “type” field in AP mode is different from that in STA mode. IP address of the module may be queried by using this command in enable DHCP Server. Format (ASCII): AT+NIP=[!?][type],[ip],[netmask],[gateway],[dns]<CR> +OK[=type,ip,netmask,gateway,dns]<CR><LF><CR><LF> Parameter: type: address type Value Meaning 0 Use DHCP to dynamically allocate/enable DHCP Server 1 Use a static IP address/disable DHCP Server ip: ip address, data format is “192.168.1.22”, without the quotation marks netmask: subnet mask, data format is in line with ip address gateway: gateway address, data format is in line with ip address dns: DNS address, data format is in line with ip address](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-15.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.2.2 AT+DNS Function: Set/query NIC module domain name, the setting is effective only when the module is AP. Format (ASCII): AT+DNS=[!?][dnsname]<CR> +OK[=dnsname]<CR><LF><CR><LF> Parameter: dns name: NIC module domain name, 1~31 characters and surrounded by double quotation marks. 2.2.2.3 AT+ATM Function: Set/query the operating mode of the module. Format (ASCII): AT+ATM=[!?][mode]<CR> +OK[=mode]<CR><LF><CR><LF> Parameter: mode: operating mode Value Meaning 0 Automatic mode 1 Command mode 2.2.2.4 AT+ATRM Function: Set/query the socket connection information automatically created by the module in automatic operating mode. Format (ASCII): AT+ATRM=[!?][protocol],[cs],[host/timeout],[port]<CR> +OK[=protocol,cs, host/timeout,port]<CR><LF><CR><LF>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-16.png)
![Beijing Winner Microelectronics Co., Ltd. Parameter: protocol: protocol type, Value Meaning 0 TCP 1 UDP cs: C/S mode, Value Meaning 0 Client 1 Server host_timeout: According to the protocol and cs, the meanings are respectively as follows. cs protocol Meaning 0 X The target server name, input domain name or ip address, such as “192.168.1.100” or “www.sina.com.cn” 1 0 TCP connection timeout period, the client connecting to this server will be automatically kicked off if it does not send any data in this period. The effective value range is1~10000000, unit: second, 0 means never, the default setting is 120 seconds 1 1 No meanings port: port number 2.2.2.5 AT+SSID Function: Set/query the wireless network name, that’s ssid. Format (ASCII): AT+SSID=[!?][ssid]<CR> +OK[=ssid]<CR><LF><CR><LF>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-17.png)
![Beijing Winner Microelectronics Co., Ltd. Parameter: ssid: the wireless network name, 1~32 characters and surrounded by double quotation marks. 2.2.2.6 AT+SSID2 Function: Set/query the soft ap name of the module created in apsta mode, that’s ssid. Format (ASCII): AT+SSID2=[!?][ssid]<CR> +OK[=ssid]<CR><LF><CR><LF> Parameter: ssid: the wireless network name, 1~32 characters and surrounded by double quotation marks. 2.2.2.7 AT+ENCRY Function: Set/query wireless network encryption mode. It should be specially noted that other encryption modes except OPEN mode need to set correct network key cooperating with AT+KEY command. In addition, the module only supports setting OPEN, WEP64 and WEP128 in AP or AD-HOC mode. Format (ASCII): AT+ENCRY=[!?][encry mode]<CR> +OK[=encry mode]<CR><LF><CR><LF> Parameter: encry mode: encryption mode Value Meaning 0 OPEN 1 WEP64 2 WEP128](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-18.png)
![Beijing Winner Microelectronics Co., Ltd. 3 WPA-PSK(TKIP) 4 WPA-PSK(CCMP/AES) 5 WPA2-PSK(TKIP) 6 WPA2-PSK(CCMP/AES) 2.2.2.8 AT+KEY Function: Set/query the network key. It should be noted that before using this command to set network key, the encryption mode must be firstly set by the command AT+ENCRY. Format (ASCII): AT+KEY=[!?][format],[index],[key]<CR> +OK[=format,index,key]<CR><LF><CR><LF> Parameter: format: key format Value Meaning 0 HEX 1 ASCII index: The key index number, 1~4 is used in WEP encryption key, and it’s set 0 in other encryption mode. key: Key string, it’s embedded in double quotation marks. According to the different encryption modes, key size and key format are defined as follows, Encryption mode Key format HEX ASCII WEP64 10 hexadecimal characters (Note 1) 5 ASCII characters (Note 2) WEP128 26 hexadecimal characters 13 ASCII characters WPA-PSK(TKIP) 64 hexadecimal characters 8 ~ 63 ASCII characters WPA-PSK(CCMP/AES) 64 hexadecimal characters 8 ~ 63 ASCII characters WPA2-PSK(TKIP) 64 hexadecimal characters 8 ~ 63 ASCII characters WPA2-PSK(CCMP/AES) 64 hexadecimal characters 8 ~ 63 ASCII characters](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-19.png)
![Beijing Winner Microelectronics Co., Ltd. Note 1: 16 hexadecimal characters represents 0 ~ 9, a ~ f (case insensitive), such as “11223344dd” Note 2: ASCII character refers to numbers 0~9 and characters a ~ z (case-sensitive) in the standard ASCII character set specified by the International Organization for Standardization (ISO), such as “14u6E” 2.2.2.9 AT+BSSID Function: Set/query specified bssid address of the target AP. This setting is effective only in the infra network when the module is STA. Format (ASCII): AT+BSSID=[!?][mode],[bssid]<CR> +OK[=mode,bssid]<CR><LF><CR><LF> Parameter: mode: BSSID mode Value Meaning 0 Automatic 1 Specified bssid: network BSSID, the length is 12 hexadecimal numbers, the format is 001EE3A34455 2.2.2.10 AT+CHL Function: Set/query the specified wireless channel mode. Format (ASCII): AT+CHL=[!?][mode],[channel]<CR> +OK[=mode,channel]<CR><LF><CR><LF> Parameter: mode: channel mode Value Meaning 0 Automatic 1 Specified](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-20.png)
![Beijing Winner Microelectronics Co., Ltd. channel: wireless channel number, the effective range is 1 ~ 14. 2.2.2.11 AT+CHLL Function: Set/query wireless channel list. The parameter in wireless channel list is used to specify working channel range of the module, channels not included in the list will not be scanned. Reasonably using this parameter may speed up the module scanning and networking speed. Format (ASCII): AT+CHLL=[!?][channel list]<CR> +OK[=channel list]<CR><LF><CR><LF> Parameter: channel list: wireless channel list, in hexadecimal format, beginning from the lowest bit, each bit represents a channel, the default setting is 3fff, that represents all the 1~14 channels 2.2.2.12 AT+WPRT Function: Set/query wireless network mode. Format (ASCII): AT+WPRT=[!?][type]<CR> +OK[=type]<CR><LF><CR><LF> Parameter: type: network mode Value Meaning 0 infra network (the module as STA) 1 adhoc network 2 infra network (the module as AP) 3 infra network (the module as APSTA) 2.2.2.13 AT+WATC Function:](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-21.png)
![Beijing Winner Microelectronics Co., Ltd. Set/query whether to automatically create the enabled adhoc network. This setting is effective only when the wireless network type is set to adhoc, which means whether to create an adhoc network with the same SSID when networking is failed. Format (ASCII): AT+WATC= [!?][enable]<CR> +OK[=enable]<CR><LF><CR><LF> Parameter: enable: The symbol of enabling Value Meaning 0 Disabled 1 Enabled 2.2.2.14 AT+WPSM Function: Turn on/off automatic power saving mode. Format (ASCII): AT+WPSM=[!?][enable]<CR> +OK[=enable]<CR><LF><CR><LF> Parameter: enable: The symbol of enabling Value Meaning 0 Disabled 1 Enabled 2.2.2.15 AT+WARM Function: Set/query whether to enable wireless roaming function, the setting is effective only in the infra network when the module as STA. Format (ASCII): AT+WARM=[!?][enable]<CR> +OK[=enable]<CR><LF><CR><LF>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-22.png)
![Beijing Winner Microelectronics Co., Ltd. Parameter: enable: The symbol of enabling Value Meaning 0 Disabled 1 Enabled 2.2.2.16 AT+WARC Function: Set/query the function of automatic retry after the wireless network is disconnected or networking is failed. This parameter is only effective in the infra network that the module as STA and the module is in the automatic operating mode. Format (ASCII): AT+WARC=[!?][count]<CR> +OK[=count]<CR><LF><CR><LF> Parameter: count: Times of Retry Value Meaning 0 No retry 1~254 Times of retry 255 Retry forever 2.2.2.17 AT+WBGR Function: Set/query BG mode of the wireless network and the maximum sending rate. Format (ASCII): AT+WBGR= [!?][bg_mode],[max_rate]<CR> +OK[=bg_mode,max_rate]<CR><LF><CR><LF> Parameter: bg mode: BG mode Value Meaning 0 B/G mixed](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-23.png)
![Beijing Winner Microelectronics Co., Ltd. 1 B max rate: The maximum sending rate, in B mode, only 0-3 is effective. Value Meaning 0 1 Mbps 1 2 Mbps 2 5.5 Mbps 3 11 Mbps 4 6 Mbps 5 9 Mbps 6 12 Mbps 7 18 Mbps 8 24 Mbps 9 36 Mbps 10 48 Mbps 11 54 Mbps 2.2.2.18 AT+BRDSSID Function: Enable/disable AP SSID broadcast, and this setting is only valid when the module is as AP. Format (ASCII): AT+BRDSSID=[!?][enable]<CR> +OK[=enable]<CR><LF><CR><LF> Parameter: enable: Whether to enable SSID broadcast Value Meaning 0 Disable AP SSID broadcast 1 Enable AP SSID broadcast 2.2.2.19 AT+UART Function:](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-24.png)
![Beijing Winner Microelectronics Co., Ltd. Set/query data format of uart interface. Format (ASCII): AT+UART=[!?][baudrate],[databit],[stopbit],[parity],[flowcontrol]<CR> +OK[=baudrate,databit,stopbit,parity]<CR><LF><CR><LF> Parameter: baud rate: baud rate, the valid range is from 1200～115200， Value Meaning 115200 115200 bps 57600 57600 bps 38400 38400 bps 19200 19200 bps 9600 9600 bps 4800 4800 bps 2400 2400 bps 1200 1200 bps data bit: data bits Value Meaning 0 8 bits 1 7 bits stop bit: stop bits Value Meaning 0 1 bit 1 Not support 2 2 bits parity: parity Value Meaning 0 No parity 1 Odd parity](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-25.png)
![Beijing Winner Microelectronics Co., Ltd. 2 Even parity 2.2.2.20 AT+ATPT Function: Set/query the automatic framing period of the data. This parameter is only effective in serial transparent transmission mode. Format (ASCII): AT+ATPT=[!?][period]<CR> +OK[=period]<CR><LF><CR><LF> Parameter: period: automatic framing period, 50~10000ms, the unit is millisecond, the minimum step size is 50ms 2.2.2.21 AT+ATLT Function: Set/query the automatic framing length of the data. This parameter is only effective in serial transparent transmission mode. Format (ASCII): AT+ATLT=[!?][length]<CR> +OK[=length]<CR><LF><CR><LF> Parameter: length: automatic framing length, 32~1024 bytes 2.2.2.22 AT+ESPC Function: Set/query the escape characters. This parameter is used for serial to exit the transparent transmission mode. Format (ASCII):](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-26.png)
![Beijing Winner Microelectronics Co., Ltd. AT+ESPC=[!?][escape]<CR> +OK[=escape]<CR><LF><CR><LF> Parameter: escape: escape characters, the format is 2 hexadecimal numbers representing ASCII characters, for example, ASCII characters “+ ”should be expressed as “2B”. 2.2.2.23 AT+ESPT Function: Set/query the escape time. This parameter is used for serial to exit the transparent transmission mode. Format (ASCII): AT+ESPT=[!?][time]<CR> +OK[=time]<CR><LF><CR><LF> Parameter: time: escape time, 100~10000ms, the unit is millisecond, the minimum step size is 100ms 2.2.2.24 AT+WEBS Function: Set/query whether to enable WEB management server. Format (ASCII): AT+WEBS=[!?][enable],[port]<CR> +OK[=enable,port]<CR><LF><CR><LF> Parameter: enable: The symbol of enabling Value Meaning 0 Disabled 1 Enabled port: server port number, the default setting is 80.](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-27.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.2.25 AT+PASS Function: Set/query system login password. Format (ASCII): AT+PASS=[!?][password]<CR> +OK[=password]<CR><LF><CR><LF> Parameter: pass: 6 ASCII characters 2.2.2.26 AT+IOM Function: Set/query GPIO1 operating mode. Format (ASCII): AT+IOM=[!?][mode]<CR> +OK[=mode]<CR><LF><CR><LF> Parameter: mode: Operating mode 2.2.2.27 AT+CMDM Function: Set/query the default command mode of the system. Format (ASCII): AT+CMDM=[!?][mode]<CR> +OK[=mode]<CR><LF><CR><LF> Parameter: Value Meaning 0 System Function 1 Input 2 Output](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-28.png)
![Beijing Winner Microelectronics Co., Ltd. mode: Command mode 2.2.2.28 AT+CUSTDATA Function: Receiving user data via one-shot configuration tool. The first to send AT + ONE SHOT = 1 command before using, the module is configured to one-shot mode. Format (ASCII): AT+CUSTDATA[=?]<CR> +OK=data<CR><LF><CR><LF> Parameter: None 2.2.2.29 AT+CNTPARAM Function: Query network configuration parameters. Format (ASCII): AT+CNTPARAM[=?]<CR> +OK=<bssid_en>,[bssid],[ssid],<key><CR><LF><CR><LF> Parameter: return：bssid_en Enable BSSID,return 1 , bssid, key Value Meaning 0 AT + command 1 Compatible protocol Value Meaning 0 Disable BSSID connecting 1 Enable BSSID connecting](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-29.png)
![Beijing Winner Microelectronics Co., Ltd. Disable BSSID,return 0, ssid, key 2.2.3 Network control class 2.2.3.1 AT+UPNP Function: Set/query upnp function. Format (ASCII): AT+UPNP=[!?][enable] <CR> +OK[=enable]<CR><LF><CR><LF> Parameter: enable: whether to enable upnp function Value Meaning 0 Disabled 1 Enabled Description: UPnP is a P2P connection structure around the world achieved by various smart devices, wireless devices and personal computers. 2.2.3.2 AT+PORTM Function: Set/query the module interface mode. Format (ASCII): AT+PORTM=[!?][mode]<CR> +OK[=mode]<CR><LF><CR><LF> Parameter: mode: interface mode Value Meaning 0 Low-speed UART 1 High-speed UART](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-30.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.3.3 AT+ AOLM Function: Set/query the always-online mode of the module (Note, this mode is only valid when the module is in automatic operation mode and the network type is STA). Format (ASCII): AT+AOLM=[!?][enable],[ssid],[encry],[key]<CR> +OK[=enable],[ssid],[encry],[key]<CR><LF><CR><LF> Parameter: enable: whether to enable always-online mode ssid: wireless network name, 1~32 characters encry: encryption mode Value Meaning 0 Open 1 Encryption (WPA2-PSK, CCMP/AES) key: key, the length is fixed at 8 ASCII characters 2.2.3.4 AT+ SKGHBN Function: Get IP of the extranet domain name. Format (ASCII): AT+ SKGHBN =[!?][ URL] <CR> +OK[=IP]<CR><LF><CR><LF> Parameter: URL: extranet domain name IP: ip address. 2.2.3.5 AT+WWPS Function: 2 H-SPI](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-31.png)
![Beijing Winner Microelectronics Co., Ltd. Set/query WPS function Format (ASCII): AT+WWPS=[!?][mode],[pin]<CR> +OK[=mode],[pin]<CR><LF><CR><LF> Parameter: mode: WPS function selection Value Meaning 0 Button method 1 PIN method pin_len: the length of PIN code (only for HEX format command) pin: wireless router PIN code, hexadecimal format 2.2.3.6 AT+WREG Function: Set/query wireless channel national region. Format (ASCII): AT+WREG=[!?][region] <CR> +OK[=region]<CR><LF><CR><LF> Parameter: region: national region code 2.2.3.7 AT+WJOIN Function: This command is only valid when the module as STA is used to join/create a wireless network. If the current network mode is adhoc, and no specified SSID network can be detected, the module will automatically create a new network. If it is already networking, then the network connection information will be directly returned. Format (ASCII): AT+WJOIN<CR>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-32.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.3.9 AT+WSCAN Function: This command is only valid when the module is STA, and it can be used to scan wireless network and return after the completion. Format (ASCII): AT+WSCAN<CR> +OK=<bssid>,<type>,<channel>,<encry>,<ssid>,<rssi><CR><LF> <bssid>,<type>,<channel>,<encry>,<ssid>,<rssi><CR><LF> …… <CR><LF> Parameter: The same with AT+WJOIN 2.2.3.10 AT+LKSTT Function: Query the network connection status. Format (ASCII): AT+LKSTT<CR> +OK[=status,ip,netmask,gateway,dns1,dns2]<CR><LF><CR><LF> Parameter: status: connection status Value Meaning 0 Disconnect 1 Connect ip: ip address, data format is “192.168.1.22”, without the quotation marks netmask: subnet mask, data format is in line with ip address gateway: gateway address, data format is in line with ip address dns1: DNS address, data format is in line with ip address dns2: DNS address, data format is in line with ip address](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-34.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.3.11 AT+LKSTT2 Function: Query the soft ap network connection status of the module created in apsta mode. Format (ASCII): AT+LKSTT2<CR> +OK[=status,ip,netmask,gateway,dns1,dns2]<CR><LF><CR><LF> Parameter: status: connection status Value Meaning 0 Disconnect 1 Connect ip: ip address, data format is “192.168.1.22”, without the quotation marks netmask: subnet mask, data format is in line with ip address gateway: gateway address, data format is in line with ip address dns1: DNS address, data format is in line with ip address dns2: DNS address, data format is in line with ip address 2.2.3.12 AT+SLIST Function: Query the sta information already connected. Valid only in ap, apsta mode. Format (ASCII): AT+SLIST<CR> +OK[=sta_number,sta_mac1,sta_ip1,sta_mac2,sta_ip2…]<CR><LF><CR><LF> Parameter: sta_number: the number of station already connected. sta_mac: station mac address already connected sta_ip: station ip address already connected](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-35.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.3.13 AT+SKCT Function: Create the socket. In client mode, waiting for connection completion (success or failure) and then return; in server mode, directly return after the completion of creation. Format (ASCII): AT+SKCT=[protocol],[cs],[host_timeout],<remote_port>,<local_port><CR> +OK=<socket><CR><LF><CR><LF> Parameter: protocol: protocol type, Value Meaning 0 TCP 1 UDP cs：C/S mode, Value Meaning 0 Client 1 Server host_timeout: According to the protocol and cs, the meanings are respectively as follows. cs protocol Meaning 0 X The target server name, input domain name or ip address, such as “192.168.1.100” or “www.sina.com.cn” 1 0 TCP connection timeout period, the client connecting to this server will be automatically kicked off if it does not send any data in this period. The effective value range is1~10000000, unit: second, 0 means never, the default setting is 120 seconds 1 1 No meanings remote_port: remote port number](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-36.png)
![Beijing Winner Microelectronics Co., Ltd. local_port: local port number socket: socket number 2.2.3.14 AT+SKSND Function: Send data by the specified socket and return after the completion. This command sends binary data. Users should begin to send original data after receiving the response (+OK) of module. The module will automatically exit transmission process after receiving the specified data length and send data to the network, the redundant date will be rejected. Otherwise, the module will be forced to constrainedly exit transmission mode and send the received data to the network when the module has been waiting for timeout period (1 second). Format (ASCII): AT+SKSND=<socket>,<size><CR> +OK=<actualsize><CR><LF><CR><LF> [data steam] Parameter: socket: socket number size: the prepared sending data length, the number of bytes actualsize: the allowed sending data length, the number of bytes data steam: original data 2.2.3.15 AT+SKRCV Function: Read data form receive buffer of the target socket, and return after the completion. After receiving this command, the module will transmit the specified size binary data after finishing sending the correspondent message (+OK). Format (ASCII): AT+SKRCV=<socket>,<maxsize><CR> +OK=<size><CR><LF><CR><LF>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-37.png)
![Beijing Winner Microelectronics Co., Ltd. [data steam] Parameter: socket: socket number maxsize: the maximum length of the receivable data size: the length of the actual received data data steam: original data 2.2.3.16 AT+SKSTT Function: Get the specified socket status, the first line of the return value means user-specified socket status information. If the socket type is TCP server, then from the next line, each line represents a socket status of a connected client. Format (ASCII): AT+SKSTT=<socket><CR> +OK=<socket>,<status>,[host],[HostPort],[LocalPort],[rx_data]<CR><LF> [socket],[status],[host],[HostPort],[ LocalPort],[rx_data]<CR><LF> ... <CR><LF> Parameter: socket：socket number status：socket status Value Meaning 0 Disconnection 1 Detecting 2 Connection host: ip address of the opposite terminal HostPort: port number of the opposite terminal LocalPort: the local port number rx_data: data size in the receiving buffer](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-38.png)
![Beijing Winner Microelectronics Co., Ltd. 2.2.3.17 AT+SKCLS Function: Close the specified socket. Format (ASCII): AT+SKCLS=<socket><CR> +OK<CR><LF><CR><LF> Parameter: socket: socket number 2.2.3.18 AT+SKSDF Function: Set the default sending socket of the system. If users need to enter the transparent transmission mode in command mode, using this command can specify the transparent serial data transmission destination. Format (ASCII): AT+SKSDF=<socket><CR> +OK<CR><LF><CR><LF> Parameter: socket: socket number 2.2.3.19 AT+SKSRCIP Function: Get current socket receiving data source IP address. Format (ASCII): AT+SKSRCIP=?<CR> +OK=[host]<CR><LF><CR><LF> Parameter: Host: IP address of data source](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-39.png)
![Beijing Winner Microelectronics Co., Ltd. AT+HTTPC=<url>,<verb>,<postdata><CR> +OK<CR><LF><CR><LF> Parameter: url: remote http server-side address; verb: Value Meaning 0 http get 1 - 2 http post 3 http put post data: Upload data to http when verb is 2, 3. 2.2.4 System debug type 2.2.4.1 AT+&DBG Function: Set the system debugging mode. Format (ASCII): AT+&DBG=<bit_enable><CR> +OK[=bit_enable]<CR><LF><CR><LF> Parameter: bit_enable: hexadecimal notation, each bit refers to a debugging function, 0 - disable, 1 –enable 2.2.4.2 AT+&REGR Function: Read register or memory space, the unit is 32bit word, the maximum is 8 words. Format (ASCII): AT+&REGR=<address>,[num]<CR>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-41.png)
![Beijing Winner Microelectronics Co., Ltd. +OK=<value1>,[value2]...<CR><LF><CR><LF> Parameter: address: register base address num: register number, the default setting is 1 value: register value 2.2.4.3 AT+&REGW Function: Modify register or memory space, the unit is 32bit word, the maximum is 8 words. Format (ASCII): AT+&REGW=<address><value1>,[value2]...<CR> +OK=<CR><LF><CR><LF> Parameter: address: register address num: register number value: register value 2.2.4.4 AT+&RFR Function: Read RF register space, the unit is 16bit word, the maximum is 8 words. Format (ASCII): AT+&RFR=<address>,[num]<CR> +OK=<value1>,[value2]...<CR><LF><CR><LF> Parameter: address: register base address num: register number, the default setting is 1 value: register value 2.2.4.5 AT+&RFW Function:](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-42.png)
![Beijing Winner Microelectronics Co., Ltd. Modify RF register space, the unit is 16bit word, the maximum is 8 words. Format (ASCII): AT+&RFW=<address><value1>,[value2]...<CR> +OK=<CR><LF><CR><LF> Parameter: address: register address num: register number ( only for HEX format command) value: register value 2.2.4.6 AT+&FLSR Function: Read SPI Flash space, the unit is 32bit word, the maximum is 8 words. Format (ASCII): AT+&FLSR=<address>,[num]<CR> +OK=<value1>,[value2]...<CR><LF><CR><LF> Parameter: address: register base address num: register number, the default setting is 1 value: register value 2.2.4.7 AT+&FLSW Function: Modify SPI Flash space, the unit is 32bit word, the maximum is 8 words. Format (ASCII): AT+&FLSW=<address><value1>,[value2]...<CR> +OK=<CR><LF><CR><LF> Parameter: address: register base address num: register number, the default setting is 1](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-43.png)
![Beijing Winner Microelectronics Co., Ltd. value: register value 2.2.4.8 AT+&UPDM Function: Firmware upgrade mode set by the user interface (UART/SPI). Format (ASCII): AT+&UPDM=?![mode]<CR> +OK[=mode]<CR><LF><CR><LF> Parameter: mode: system operation mode 0 - normal 1 –upgrade mode 2.2.4.9 AT+&UPDD Function: Send online upgrade data. Format (ASCII): AT+&UPDD=<size><CR>[data stream] +OK<CR><LF><CR><LF> Parameter: size: data length data stream: upgrade date 2.2.4.10 AT+&UPDP Function: Used to change the factory settings. Format (ASCII): AT+&UPDP=<mode><CR> +OK<CR><LF><CR><LF>](https://usermanual.wiki/Beijing-Winner-Microelectronics/WMSP02/User-Guide-2869384-Page-44.png)
