Wifi2UART Module User Manual
Contents
1.2. command_name function category description net_mode S Q Net Network Mode configuration wifi_ap S Q Net WiFi AP configuration wifi_ap_client S Q Net WiFi AP Client configuration channel S Q Net WiFi channel configuration wan_dhcpe S Q Net WAN port DHCP client enable disable configuration wan_ip S Q Net WAN port static IP configuration wan_dns S Q Net WAN port DNS Server configuration lan_ip S Q Net LAN port static IP configuration dhcpd S Q Net LAN WLAN port DHCP Server enable disable configuration dhcpd_ip S Q Net DHCP Server leasing IP addresses configuration dhcpd_dns S Q Net DHCP Server leasing DNS configuration dhcpd_time S Q Net DHCP Server lease time configuration in second service_mode S Q Srvc Service Mode configuration There are three modes Server Mode Client Mode or Not In Service Mode service_ip S Q Srvc Remote Server s IP configuration when Wifi2UART is itself in Client Mode service_port S Q Srvc Port number for TCP and UDP connection configuration service_pro S Q Srvc Protocol configuration TCP or UDP service_timeout S Q Srvc TCP connection timeout configuration in second it is used when Wifi2UART is in TCP Server Mode tcp_auto S Q Srvc TCP auto connection configuration it is used when Wifi2UART is in TCP Client Mode uart S Q Srvc UART baud rate data bits parity check stop bit configuration Copyright amazipoint technology Ltd All rights are reserved Page 7 of 25
3. aMazipcint Wifi2UART Module User Manual Version 0 1 Date 2015 6 5 uartframelen S Q Srvc UART frame length configuration in byte uartframetimeout S Q Srvc UART frame timeout configuration in mini second ms leave_at Ask WifiZUART to leave AT Command Mode and go to Transparent Transmission Mode A commit A Ask Wifi2UART to save configurations to flash memory service_restart A Ask Wifi2UART to restart the UART to WiFi Ethernet conversion service send receive UART data to from remote Servers or Clients default A Ask Wifi2UART to set to factory default configurations reboot A Ask Wifi2UART to reboot ver Q Query the current software version Table 5 1 AT Command List 5 2 AT command list This section describes every AT command s function format and parameters in detail To query current settings the format is always att lt command name gt r see Appendix B script to get current configurations 5 2 1 net_mode Function Set the Network Mode Each mode has different network interfaces enabled Format at net_mode lt net mode gt r Parameter net mode please see below table value description 1 AP Router Mode serial to WiFi AP and 2 Ethernet ports WAN and LAN conversion It is the default mode 2 Single WAN Mode serial to one Ethernet port WAN conversion 3 AP Client Mode serial to WiFi AP Client conversion This AP Client can li
4. 0 at tcp_auto 1 at uart 115200 8 n 1 at uartframelen 64 at uartframetimeout 50 at ver 01 00 01 please note Wifi2UART will append a r at the end of every response Appendix B script to get current configurations To each query command Wifi2UART will echo the AT command you send without the r and append it with a space and then the response to the query Finally a r will be appended at the end of response In the below AT commands please make sure every AT command must end with r att net_mode att wifi_ap att wifi_ap_client at channel att wan_dhcpc Copyright amazipoint technology Ltd All rights are reserved Page 16 of aMazipcint Wifi2UART Module User Manual ME at wan_ip at wan_dns at lan_ip at dhcpd at dhcpd_ip at dhcpd_dns at dhcpd_time at service_mode att service_ip at service_port at service_pro at service_timeout att tcp_auto att uart at uartframelen att uartframetimeout att ver please make sure every AT command must end with r Appendix C scripts to configure Network related settings A complete configuration includes Network related configuration and Service related configuration see Appendix D Please combine these two configurations according to your requirement Before you start configuration by using AT commands please follow instructions in section 3 Quick Start to go to AT Command mode first C 1 AP Rou
5. C 2 AP Router Mode configuration script with WAN port DHCP client disabled and LAN port DHCP server enabled Network Mode WAN Ethernet AP AP Client LAN and WLAN AP Router DHCP client SSID RT5350_AP encrypt N A DHCP server enabled disabled use static IP type none settings Channel 1 is used at net_mode 1 at wifi_ap RT5350_AP none at channel 1 at wan_dhcpc 0 at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 att wan_dns 168 95 1 1 8 8 8 8 at lan_ip 10 10 10 254 255 255 255 0 at dhcpd 1 at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 at dhcpd_dns 168 95 1 1 8 8 8 8 at dhcpd_time 86400 please make sure every AT command must end with r The Wifi2UART s response on serial port will be at net_mode 1 OK at wifi_ap RT5350_AP none OK at channel 1 OK at wan_dhcpc 0 OK at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 OK att wan_dns 168 95 1 1 8 8 8 8 OK at lan_ip 10 10 10 254 255 255 255 0 OK at dhcpd 1 OK at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 OK at dhcpd_dns 168 95 1 1 8 8 8 8 OK Copyright amazipoint technology Ltd All rights are reserved Page 18 of aMazipcint Wifi2UART Module User Manual ME at dhcpd_time 86400 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT
6. For Service related configurations to take effect it can be done by 1 asking Wifi2UART to restart service and then leave AT Command Mode to go to Transparent Transmission Mode at servive_restart 1 att tleave_at 1 or 2 rebooting Wifi2UART at reboot 1 please make sure every AT command must end with r D 3 UDP Server configuration script Service protocol Service IP Service port TCP client auto TCP service UART Mode reconnection timeout server UDP N A use all 8080 N A N A 115200 8 n 1 interfaces UDP port IP number at service_mode server att service_port 8080 at service_pro udp att uart 115200 8 n 1 at uartframelen 64 at uartframetimeout 50 The WifiZ2UART s response on serial port will be at service_mode server OK at service_port 8080 OK at service_pro udp OK att tuart 115200 8 n 1 OK at uartframelen 64 OK at uartframetimeout 50 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r For Service related configurations to take effect it can be done by 1 asking Wifi2UART to restart service and then leave AT Command Mode to go to Transparent Transmission Mode at servive_restart 1 att tleave_at 1 or 2 rebooting Wifi2UART at reboot 1 please make sure every AT command must e
7. This can be done by at reboot 1 please make sure every AT command must end with r C 7 AP Mode configuration script with LAN port DHCP client enabled Network Mode WAN AP AP Client LAN WLAN AP N A SSID RT5350_AP N A DHCP server enabled encrypt type wep_open password 1234567890123 Channel 1 is used at net_mode 4 att wifi_ap RT5350_AP wep_open 1234567890123 at channel 1 at lan_ip 10 10 10 254 255 255 255 0 at dhcpd 1 at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 at dhcpd_dns 168 95 1 1 8 8 8 8 at dhcpd_time 86400 please make sure every AT command must end with r The Wifi2UART s response on serial port will be Copyright amazipoint technology Ltd All rights are reserved Page 21 of aMazipcint Wifi2UART Module User Manual oo at net_mode 4 OK at wifi_ap RT5350_AP wep_open 1234567890123 OK at channel 1 OK at lan_ip 10 10 10 254 255 255 255 0 OK at dhcpd 1 OK at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 OK at dhcpd_dns 168 95 1 1 8 8 8 8 OK at dhcpd_time 86400 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Then reboot Wifi2UART for new Network related configurations to take effect This can be done by at reboot 1 pl
8. Date 2015 6 5 Some commands can ask Wifi2UART to do special actions The AT command format is at lt command_name gt l r character 1 and the Carriage Return character r Wifi2UART will echo the AT command you send without r and append it with a space character and then OK or Error at the end to indicate success or failure of that AT command Finally a r will be appended at the end of the response In Figure 5 3 OK is sent back to indicate the AT command is accepted successfully to ask Wifi2UART to save configurations to flash memory gp COM6 PuTTY r Figure 5 3 AT Command for action In the table Table 5 1 AT Command List below those commands that can be used to configure settings are indicated by S in the function column those to query current configurations are indicated by Q those to ask for actions are indicated by A The AT command configurations can be divided to two categories Network related configurations and Service related configurations Those Network related configurations will take effect after reboot while Service related configurations will take effect after reboot or after the service_restart AT command is sent In the table below those commands that can be used to set Network related configurations are indicated by Net in the category column those to set Service related configurations are indicated by Srvc
9. Wifi2U ART Module User Manual Query the current software version Format att ver r Parameter N A Version 0 1 Date 2015 6 5 Appendix A factory default configurations command_name function default configuration description net_mode S Q 1 AP Router Mode wifi_ap S Q RT5350_AP none For WiFi AP SSID is RT5350_AP Encrypt type is none Open network wifi_ap_client S Q No initial settings For WiFi AP Client No default configuration Users need to configure it by themselves channel S Q 1 WiFi channel number 1 wan_dhcpc S Q 1 WAN port DHCP client mode is enabled wan_ip S Q 192 168 1 1 255 255 255 0 WAN port static IP 192 168 1 254 IP is 192 168 1 1 Mask is 255 255 255 0 Gateway is 192 168 1 254 wan_dns S Q 168 95 1 1 8 8 8 8 WAN port static DNS Server First DNS is 168 95 1 1 Second DNS is 8 8 8 8 lan_ip S Q 10 10 10 254 255 255 255 0 LAN port static IP IP is 10 10 10 254 Mask is 255 255 255 0 dhcpd S Q 1 LAN WLAN DHCP Server is enabled dhcpd_ip S Q 10 10 10 100 10 10 10 200 DHCP Server leasing IP addresses 255 255 255 0 10 10 10 254 Start IP is 10 10 10 100 End IP is 10 10 10 200 Mask is 255 255 255 0 Gateway is 10 10 10 254 dhcpd_dns S Q 168 95 1 1 8 8 8 8 DHCP Server leasing DNS First DNS is 168 95 1 1 Second DNS is 8 8 8 8 dhcpd_time S Q 86400 DHCP Server lease time 86400 seconds service_mode S Q none Not In S
10. a terminal with the same 115200 8 N 1 setting to the Wifi2UART UART port The Wifi2UART has two Operation Modes AT Command Mode and Transparent Transmission Mode In AT Command Mode Wifi2UART will treat incoming data from the UART port as AT commands while in Transparent Transmission Mode Wifi2UART can send data from the UART port to WiFi or Ethernet ports and vice versa After power on Wifi2UART is in Transparent Transmission Mode Before you can use AT commands to configure Wifi2UART please use the following instructions to make it go to AT Command Mode first also see Figure 2 1 below 1 send 7 characters OxIB OxI1B OxIB_ Ox1B each character is separated to its previous character by at least uartframetimeout ms for uartframetimeout command and its setting please see section 5 2 21 for details 2 the character which is previous to the first character cannot be When above two conditions are met Wifi2UART will go to AT Command Mode Now you can start configuring Wifi2UART You need to issue the commit AT command to save configurations to flash memory see section 5 2 23 so these settings will not be lost after power off Copyright amazipoint technology Ltd All rights are reserved Page 3 of 25 Wifi2UART Module User Manual Version 0 1 A amazipoint Date 2015 6 5 7 6 7 7 7 J eJ T cant be 0x2B 0x2B 0x2B 0x1B 0x1B 0x1B 0x1B A should be at least uartframetime
11. command must end with r Then reboot Wifi2UART for new Network related configurations to take effect This can be done by at reboot 1 please make sure every AT command must end with r C 3 Single WAN Mode configuration script with WAN port DHCP client enabled Network Mode WAN Ethernet AP AP Client LAN Single WAN DHCP client enabled N A N A N A att net_mode 2 at wan_dhcpc 1 please make sure every AT command must end with r The WifiZ2UART s response on serial port will be at net_mode 2 OK at wan_dhcpc 1 OK After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Then reboot Wifi2UART for new Network related configurations to take effect This can be done by at reboot 1 please make sure every AT command must end with r C 4 Single WAN Mode configuration script with WAN port DHCP client disabled Network Mode WAN Ethernet AP AP Client LAN Single WAN DHCP client disabled use N A N A N A static IP settings at net_mode 2 at wan_dhcpc 0 at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 att wan_dns 168 95 1 1 8 8 8 8 please make sure every AT command must end with r The Wifi2UART s response on serial port will be at net_mode 2 OK at wan_dhcpc 0 OK Copyright amazipoint technology Ltd All rights are reserved Page
12. remote TCP clients The WifiZ2UART allows up to 10 concurrent TCP connections The Wifi2UART will send its UART data to all TCP clients and all data from TCP clients to its UART port If there is no data traffic from TCP server to client or from TCP client to server in a connection for a period of time set by service_timeout command Wifi2UART will terminate that connection 4 2 2 TCP Client In this mode the Wifi2UART will connect to a remote TCP server with the server s IP and port number set by service_ip and service_port commands respectively If auto reconnection function is enabled by the tcp_auto command Wifi2UART will keep trying to reconnect to the TCP server automatically once it has detected the connection is terminated Copyright amazipoint technology Ltd All rights are reserved Page 5 of 25 Ss amazipoint Wifi2UART Module User Manual ea rhea 4 2 3 UDP Server In this mode the Wifi2UART waits incoming UDP packets on all of its interfaces with a specific UDP port number which is set by the service_port command Wifi2UART will record the latest UDP client s IP and port number Data from UDP clients will be sent to WifiZUART s UART port while WifiZ2UART s UART data will be sent to its latest UDP client 4 2 4 UDP Client In this mode the Wifi2UART will send its UART data to a remote UDP server with the server s IP and port number set by service_ip and service_port commands respectively Data received from
13. 19 of aMazipcint Wifi2UART Module User Manual oo at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 OK att wan_dns 168 95 1 1 8 8 8 8 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Then reboot Wifi2UART for new Network related configurations to take effect This can be done by at reboot 1 please make sure every AT command must end with r C 5 AP Client Mode configuration script with WAN port DHCP client enabled Network Mode WAN AP Client plays AP AP Client LAN the role as WAN AP Client DHCP client enabled N A Ask AP Client to link to an AP whose N A SSID is remote_AP with encrypt type wep_open and password 12345 Channel is used at net_mode 3 att wan_dhcpc 1 att wifi_ap_client remote_AP wep_open 12345 at channel 1 please make sure every AT command must end with r The WifiZ2UART s response on serial port will be at net_mode 3 OK att wan_dhcpc 1 OK att wifi_ap_client remote_AP wep_open 12345 OK at channel 1 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Then reboot Wif
14. Also refer to section 5 2 9 dhepd Format at dhcpd_dns lt dns 1 gt lt dns 2 gt r Parameter dns 1 First DNS IP address dns 2 Second DNS IP address 5 2 12 dhcpd_time Function DHCP Server s IP lease time in second Also refer to section 5 2 9 dhepd Format at dhcpd_time lt time gt r Parameter time lease time in second maximum length is 7 digits 5 2 13 service_mode Function Set the Service Mode of Wifi2UART Format at service_mode lt service mode gt r Parameter service mode please see below table value description none Wifi2UART is Not In Service or the UART to WiFi Ethernet conversion is not functioning server Wifi2UART plays the role as a Server in the UART to WiFi Ethernet conversion client serial to WiFi AP Client This AP Client can link to another WiFi AP 5 2 14 service_ip Copyright amazipoint technology Ltd All rights are reserved Page 11 of gt amazipoint Wifi2UART Module User Manual MA Function When Wifi2UART is configured as a client the service_ip configuration tells Wifi2UART what the remote Server s IP address is Format at service_ip lt remote server s ip gt r Parameter remote server s ip remote Server s IP address 5 2 15 service_port Function When Wifi2UART is configured as a client the service_port configuration tells Wifi2UART what the remote Server s TCP or UDP port number is When Wifi2UART is configured as a server the
15. P Client Mode In this mode only the AP Client interface is up and running Serial UART data can be sent to this interface and vice versa An AP Client can connect to other WiFi AP The AP Client interface can be treated like a WiFi WAN and we can enable DHCP client on this interface or configure its IP statically 4 1 4 AP Mode In this mode only the WiFi AP interface is up and running Serial UART data can be sent to this interface and vice versa A WiFi AP allows other WiFi stations to connect to it and we can enable disable the DHCP server on this interface 4 2 Service Mode with TCP or UDP protocol There are three Service Mode for Wifi2UART Server Mode Client Mode and Not In Service Mode The default Service Mode is Not In Service which means the serial UART to WiFi Ethernet conversion function is not in service In the Not In Service Mode the Wifi2UART is an ordinary network device AP Router etc If you want it to start doing UART to WiFi Ethernet conversion service you must change it to Server mode to be connected by remote clients or Client mode to connect to a remote Server so Wifi2UART knows where to send UART data to and where to get data from Please see section 5 2 13 service_mode on how to change service mode in details 4 2 1 TCP Server In this mode the Wifi2UART listens on all of its network interfaces with a specific TCP port number which is set by the service_port command for connection requests from
16. Ss amazipoint Wifi2UART Module User Manual P a Wifi2UART Module User Manual Version Issue date Changes Remark 0 1 2015 6 05 Initial Version IMPORTANT This document contains important Information and therefore should not be disclosed to third parties without prior written consent of amazipoint technology Ltd Address 2F No 113 Zhongyang Rd Xindian Dist New Taipei City Taiwan R O C www amazipoint com Signature Author Reviewed by Approved by Remarks Charles Ho Copyright amazipoint technology Ltd All rights are reserved Page 1 of 25 Wifi2UART Module User Manual Version 0 1 A amazioecint Date 2015 6 5 1 Introduction The WifiZUART module is an embedded UART to WiFi Ethernet serial port to Wireless Wired network conversion module This product is based on the universal serial interface standard built in TCP IP protocol stack enabling UART to WiFi Ethernet conversions between the user serial port and wireless network WiFi and Ethernet interfaces Through the Wifi2UART module the traditional serial devices do not need to change their configurations Data from the UART port can be transmitted through the wireless and wired IP network and vice versa It provides a solution for the users serial devices to transfer serial port data via the IP network or the Internet Figure 1 1 shows the functional diagram of the WifiZUART module which provides en
17. Wifi2UART s UDP server will be sent to its UART port 5 AT Commands 5 1 AT command general description To configure WifiZ2UART the AT command format is at lt command_name gt xxx r xxx are the configuration characters and r is the Carriage Return character 0xOD No space is allowed in the format Wifi2UART will echo the AT command you send without the r and append it with a space character and then OK or Error to indicate success or failure of that AT command Finally a r will be appended at the end of the response In Figure 5 1 if we set Net Mode to 5 in the first AT command Error will be sent back because net_mode can t be set to 5 only 1 4 are allowed OK will be sent back after we successfully set Net Mode to 1 in the second AT command gp COM6 PuTTY Figure 5 1 AT Command for configuration To query the current Wifi2UART configurations the AT command format is at lt command_name gt r question mark character and the Carriage Return character No space is allowed in the format Wifi2 UART will echo the AT command you send without the r and append it with a space and then the response to the query Finally a r will be appended at the end of the response In Figure 5 2 1 is the response to the Net Mode query Figure 5 2 AT Command for query Copyright amazipoint technology Ltd All rights are reserved Page 6 of 25 Wifi2UART Module User Manual Version 0 1 H amazipoint
18. d to end UART connections from Wifi2UART module to remote Server or Client When Wifi2UART is a server remote clients will connect to it when Wifi2UART is a client it connects to a remote server Remote Wifi2 UART Server or k Client a Figure 1 1 Functional Diagram of Wifi2UART Module 2 Technical specification Specification Network standard WiFi IEEE 802 11n 802 119 802 11b Ethernet IEEE 802 3 802 3u WiFi transmission rate 11n up to 150 Mbps 11g up to 54 Mbps 11b uo to 11 Mbps WiFi Channel number 1 14 WiFi Frequency 2 4 2 4835 GHz Copyright amazipoint technology Ltd All rights are reserved Page 2 of 25 Wifi2UART Module User Manual Version 0 1 H amazipoint Date 2015 6 5 Interface 2 Ethernet ports 1 serial port for data 1 serial port for console an embedded WiFi interface Serial baud rate Service mode Network protocol TCP Server connection Management AT command via serial port web management web software upgrade Network mode There are four Network modes available 1 WiFi AP Router Mode WiFi AP and 2 Ethernet ports for WAN and LAN default mode 2 Single Ethernet WAN Mode 3 WiFi AP Client Mode 4 WiFi AP Mode Status indicator 1 status indicator 3 Quick Start The Wifi2UART UART port uses 115200 8 N 1 baud rate 115200 bps 8 data bits no parity check 1 stop bit as its default setting Please connect your PC or serial device with
19. ease make sure every AT command must end with r Appendix D scripts to configure Service related settings A complete configuration includes Network related configuration see Appendix C and Service related configuration Please combine these two configurations according to your requirement Before you start configuration by using AT commands please follow instructions in section 3 Quick Start to go to AT Command mode first D 1 TCP Server configuration script Service protocol Service IP Service port TCP client auto TCP service UART Mode reconnection timeout server TCP N A 8080 N A 0 never 115200 8 n 1 listen on all TCP port timeout interfaces IP number at service_mode server at service_port 8080 at service_pro tcp at service_timeout 0 att uart 115200 8 n 1 att uartframelen 64 att uartframetimeout 50 The Wifi2UART s response on serial port will be at service_mode server OK at service_port 8080 OK at service_pro tcp OK at service_timeout 0 OK att tuart 115200 8 n 1 OK at uartframelen 64 OK Copyright amazipoint technology Ltd All rights are reserved Page 22 of N ifi V ion 0 1 KA amazipoint Wifi2UART Module User Manual e AT at uartframetimeout 50 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT c
20. ervice Mode service_ip S Q 192 168 1 254 Remote Server s IP 192 168 1 254 service_port S Q 8080 TCP or UDP port number is 8080 service_pro S Q tcp Protocol configuration TCP service_timeout S Q 0 0 means never timeout tcp_auto S Q 1 TCP client auto reconnection is enabled uart S Q 115200 8 n 1 UART baud rate data bits parity check stop Copyright amazipoint technology Ltd All rights are reserved Page 15 of ifi Version 0 1 A amazioecint Wifi2UART Module User Manual pare iene bit 115200 8 no parity check 1 uartframelen S Q 64 UART frame length is 64 bytes uartframetimeout S Q 50 UART frame timeout is 50 ms leave_at A N A commit A N A service_restart A N A default A N A reboot A N A ver Q 01 00 01 current software version 01 00 01 You can use the script in Appendix B to get these factory default configurations at net_mode 1 at wifi_ap RT5350_AP none at wifi_ap_client No initial settings Or previous settings are illegal at channel 1 at wan_dhcpc at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 at wan_dns 168 95 1 1 8 8 8 8 at lan_ip 10 10 10 254 255 255 255 0 at dhcpd 1 at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 at dhcpd_dns 168 95 1 1 8 8 8 8 at dhcpd_time 86400 at service_mode none at service_ip 192 168 1 254 at service_port 8080 at service_pro tcp at service_timeout
21. i2UART for new Network related configurations to take effect This can be done by at reboot 1 please make sure every AT command must end with r C 6 AP Client Mode configuration script with WAN port DHCP client disabled Network Mode WAN AP Client will AP AP Client LAN play the role as WAN AP Client DHCP client disabled N A Ask AP Client to link to an AP whose N A Copyright amazipoint technology Ltd All rights are reserved Page 20 of aMazipcint Wifi2UART Module User Manual ME use static IP settings SSID is remote_AP with encrypt type wep_open and password 12345 Channel 1 is used at net_mode 3 at wan_dhcpc 0 at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 att wan_dns 168 95 1 1 8 8 8 8 att wifi_ap_client remote_AP wep_open 12345 att channel 1 please make sure every AT command must end with r The Wifi2UART s response on serial port will be at net_mode 3 OK at wan_dhcpc 0 OK at wan_ip 192 168 1 1 255 255 255 0 192 168 1 254 OK att wan_dns 168 95 1 1 8 8 8 8 OK att wifi_ap_client remote_AP wep_open 12345 OK at channel 1 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Then reboot Wifi2UART for new Network related configurations to take effect
22. ication wpa_tkip wpa tkip wpa_aes wpa_aes wpa2_tkip wpa2 tkip wpa2_aes wpa2 aes password password in ASCII format Maximum length 13 characters note for wep_open encrypt type the password should be 5 or 13 characters 5 2 4 channel Function WiFi channel selection Format at channel lt channel gt r Parameter channel 14 5 2 5 wan_dhepe Function WAN port DHCP client enable Format at wan_dhcpc lt enable gt r Parameter enable please see below table value description Copyright amazipoint technology Ltd All rights are reserved Page 9 of 25 gt aMaziecint Wifi2UART Module User Manual ME DHCP client disabled WAN port will use static IP configuration DHCP client enabled WAN port will get IP configuration from a DHCP Server 1 5 2 6 wan_ip Function Set the static WAN port IP When WAN port DHCP client is disabled static IP configuration will be used Format at wan_ip lt ip gt lt mask gt lt gateway gt r Parameter ip IP address mask Subnet mask gateway Default gateway IP address 5 2 7 wan_dns Function Set the static WAN port DNS When WAN port DHCP client is disabled static DNS configuration will be used Format at wan_dns lt dns 1 gt lt dns 2 gt r Parameter dns 1 First DNS IP address dns 2 Second DNS IP address 5 2 8 lan_ip Function Set the static LAN port IP The configuration is val
23. id only when Wifi2UART s Network Mode is mode 1 AP Router Mode default mode or mode 4 WiFi AP Mode Please refer to 4 1 Network Mode Format att lan_ip lt ip gt lt mask gt r Parameter ip IP address mask Subnet mask 5 2 9 dhcpd Function Set the DHCP server on LAN port or WLAN Wireless LAN port The configuration and the following dhcpd related configurations 5 2 10 dhcpd_ip 5 2 11 dhcpd_dns 5 2 12 dhcpd_time will be used only when Wifi2UART s Network Mode is mode 1 AP Router Mode default mode or mode 4 WiFi AP Mode Please refer to 4 1 Network Mode Format at dhcpd lt enable gt r Parameter enable please see below table value description Copyright amazipoint technology Ltd All rights are reserved Page 10 of gt aMazipcint Wifi2UART Module User Manual MA DHCP server disabled 1 DHCP server enabled 5 2 10 dhepd_ip Function DHCP Server s leasing IP addresses Also refer to section 5 2 9 dhepd Format at dhcpd_ip lt ip start gt lt ip end gt lt mask gt lt gateway gt r Parameter ip Start start of the IP addresses that Server will lease to DHCP clients ip end end of the IP addresses that Server will lease to DHCP clients mask subnet mask that Server will provide to DHCP clients gateway default gateway that Server will provide to DHCP clients 5 2 11 dhcpd_dns Function DNS information that DHCP Server will provide to its clients
24. n Set the serial port configurations Format at uart lt baud gt lt data gt lt parity gt lt stop gt r Parameter baud baud rate could be 1200 bps 2400 bps 4800 bps 9600 bps 19200 bps 38400 bps 57600 bps 115200 bps or 230400 bps data data bits could be 5 6 7 8 bits parity parity check could be n for no parity check for odd parity check or 2 for even parity check stop stop bits could be 1 or 2 bits 5 2 20 uartframelen Function Set the serial port frame length in byte Wifi2UART will send serial UART data to WiFi Ethernet interfaces after it receives at least uartframelen byte of data from the serial port Otherwise Wifi2UART will wait until uartframetimeout timeout see section 5 2 21 uartframetimeout to send data to WiFi Ethernet interfaces Format att uartframelen lt frame length gt r Parameter frame length frame length in bytes maximum length is 999 bytes 5 2 21 uartframetimeout Function Set the serial port frame timeout in ms Wifi2UART will send UART data to WiFi Ethernet after it receives at least uartframelen byte of data from the serial port see section 5 2 20 uartframelen Otherwise Wifi2UART will wait until vartframetimeout timeout expires to send UART data to WiFi Ethernet The minimum value is 50 ms and every increasing step is 10 ms Format at uartframetimeout lt frame timeout gt r Parameter frame timeout timeout in ms minimum value is 50 ms every increasi
25. nd with r D 4 UDP Client configuration script Copyright amazipoint technology Ltd All rights are reserved Page 24 of gt aMazipcint Wifi2UART Module User Manual ME Service protocol Service IP Service port TCP client auto TCP service UART Mode reconnection timeout client UDP 192 168 1 254 8080 N A N A 115200 8 n 1 remote UDP port server s IP number at service_mode client at service_ip 192 168 1 254 at service_port 8080 at service_pro udp att uart 115200 8 n 1 at uartframelen 64 at uartframetimeout 50 The Wifi2UART s response on serial port will be at service_mode client OK at service_ip 192 168 1 254 OK at service_port 8080 OK at service_pro udp OK att uart 115200 8 n 1 OK at uartframelen 64 OK at uartframetimeout 50 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r For Service related configurations to take effect it can be done by 1 asking Wifi2UART to restart service and then leave AT Command Mode to go to Transparent Transmission Mode at servive_restart 1 att tleave_at 1 or 2 rebooting Wifi2UART at reboot 1 please make sure every AT command must end with r Copyright amazipoint technology Ltd All rights are reserved Page 25 of
26. ng step is 10 ms maximum value is 999990 ms 5 2 22 leave_at Function Ask Wifi2UART to leave AT Command Mode and go to Transparent Transmission Mode after you Copyright amazipoint technology Ltd All rights are reserved Page 13 of Wifi2UART Module User Manual Version 0 1 H amazipoint Date 2015 6 5 have finished configuring Wifi2UART Format at leave_at 1 r Parameter N A 5 2 23 commit Function Ask Wifi2UART to save configurations to flash memory You must issue this AT command to save new configurations to flash memory otherwise new configurations will be lost after power off Format at commit 1 r Parameter N A 5 2 24 service_restart Function After you change Service related configurations refer to section 5 1 AT command general description you can issue this command to ask Wifi2UART to restart server client to client server connection and doing UART to WiFi Ethernet conversion based on these new configurations Format at service_restart 1 r Parameter N A 5 2 25 default Function Ask Wifi2UART to set to factory default configurations Wifi2UART s factory default settings can be found in Appendix A Format at default 1 r Parameter N A 5 2 26 reboot Function Ask Wifi2UART to reboot Format at reboot 1 r Parameter N A 5 2 27 ver Function Copyright amazipoint technology Ltd All rights are reserved Page 14 of Ss AMazipcint
27. nk to another WiFi AP 4 AP Mode serial to WiFi AP conversion Other WiFi stations can link to this AP 5 2 2 wifi_ap Function WiFi AP configurations Format at wifi_ap lt ssid gt lt encrypt type gt lt password gt r Parameter ssid wireless network SSID Maximum length 20 characters encrypt type authentication and encryption please see below table value description none Open network wep_open wep encryption open authentication Copyright amazipoint technology Ltd All rights are reserved Page 8 of 25 A amazioecint Wifi2UART Module User Manual wpa_tkip wpa tkip wpa_aes Wwpa_aes wpa2_tkip wpa2 tkip wpa2_aes wpa2 aes wpawpa2_tkip wpa wpa2 tkip wpawpa2_aes wpa wpa2 aes Version 0 1 Date 2015 6 5 password password in ASCII format Maximum length 13 characters note for wep_open encrypt type the password should be 5 or 13 characters 5 2 3 wifi_ap_client Function WiFi AP Client configurations The configurations shows which remote AP its SSID encrypt type and password this AP Client is intended to link to Format at wifi_ap_client lt ssid gt lt encrypt type gt lt password gt r Parameter ssid wireless network SSID Maximum length 20 characters encrypt type authentication and encryption please see below table value description none Open network wep_open wep encryption open authent
28. ommand must end with r For Service related configurations to take effect it can be done by 1 asking Wifi2UART to restart service and then leave AT Command Mode to go to Transparent Transmission Mode at servive_restart 1 att tleave_at 1 or 2 rebooting Wifi2UART at reboot 1 please make sure every AT command must end with r D 2 TCP Client configuration script Service protocol Service IP Service port TCP client auto TCP service UART Mode reconnection timeout client TCP 192 168 1 254 8080 Yes N A 115200 8 n 1 remote TCP port server s IP number at service_mode client at service_ip 192 168 1 254 att service_port 8080 at service_pro tcp at service_timeout 0 att tcp_auto 1 att uart 115200 8 n 1 att uartframelen 64 at uartframetimeout 50 The Wifi2UART s response on serial port will be at service_mode client OK at service_ip 192 168 1 254 OK at service_port 8080 OK at service_pro tcp OK at service_timeout 0 OK at tcp_auto 1 OK att uart 115200 8 n 1 OK at uartframelen 64 OK at uartframetimeout 50 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Copyright amazipoint technology Ltd All rights are reserved Page 23 of aMazipcint Wifi2UART Module User Manual MA
29. out ms Figure 2 1 Criteria to enter AT Command Mode After finishing configuring Wifi2UART you can use the eave_at AT command to leave the AT Command Mode and go to Transparent Transmission Mode please see section 5 2 22 for that command or just reboot Wifi2UART to go to Transparent Transmission Mode The AT command configurations can be divided to two categories Network related configurations and Service related configurations Network related configurations are for network infrastructure like which interface will be enabled interface s IP address DHCP function WiFi settings etc while Service related configurations are for sending converted UART data between servers and clients like UART baud rate the TCP or UDP protocol used which role Wifi2UART to play server or client etc A complete configuration includes Network related configuration and Service related configuration Please refer to section 5 AT Commands for details on AT commands functions and format Wifi2ZUART s factory default settings can be found in Appendix A There are many configuration scripts in Appendix which can be used to facilitate your configuration process For Network related configuration please see Appendix C Service related configuration please see Appendix D 4 Function Description Wifi2UART can transmit the serial port data to other network interfaces and vice versa In section 4 1 Network Mode various network modes each with different net
30. service_port configuration will be used by Wifi2UART as its TCP or UDP port number Format at service_port lt port gt r Parameter port port number maximum port number is 65535 5 2 16 service_pro Function Set the protocol used by Wifi2UART to connect to remote Servers or Clients Format at service_pro lt protocol gt r Parameter protocol please see below table value description tcp TCP protocol udp UDP protocol 5 2 17 service_timeout Function When Wifi2UART is configured as a TCP Server it will terminate the TCP connection to a client if there is no traffic from Server to client and vice versa between them for more than service_timeout seconds If this setting is 0 it means never timeout Format at service_timeout lt service timeout gt r Parameter service timeout timeout in seconds maximum length is 6 digits 0 for never timeout 5 2 18 tcp_auto Function When Wifi2UART is configured as a TCP Client and tcp_auto is set to 1 it will try to auto reconnect to the remote TCP server when disconnection is detected by Wifi2UART Format Copyright amazipoint technology Ltd All rights are reserved Page 12 of aMazipcint Wifi2UART Module User Manual MA at tcp_auto lt enable gt r Parameter enable please see below table value description 0 TCP auto reconnection is disabled 1 TCP auto reconnection is enabled 5 2 19 uart Functio
31. ter Mode configuration script with WAN port DHCP client enabled and LAN port DHCP server enabled Network WAN Ethernet AP AP Client LAN and WLAN Mode AP Router DHCP client SSID RT5350_AP encrypt N A DHCP server enabled enabled type none Channel 1 is used at net_mode 1 att wifi_ap RT5350_AP none at channel 1 att wan_dhcpc 1 at lan_ip 10 10 10 254 255 255 255 0 at dhcpd 1 at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 at dhcpd_dns 168 95 1 1 8 8 8 8 at dhcpd_time 86400 please make sure every AT command must end with r The WifiZ2UART s response on serial port will be at net_mode 1 OK Copyright amazipoint technology Ltd All rights are reserved Page 17 of amazipoint Wifi2UART Module User Manual MA at wifi_ap RT5350_AP none OK at channel 1 OK at wan_dhcpc 1 OK at lan_ip 10 10 10 254 255 255 255 0 OK at dhcpd 1 OK at dhcpd_ip 10 10 10 100 10 10 10 200 255 255 255 0 10 10 10 254 OK at dhcpd_dns 168 95 1 1 8 8 8 8 OK at dhcpd_time 86400 OK please note Wifi2UART will append a r at the end of every response After you have configured Wifi2UART successfully please save configurations to flash memory by at commit 1 please make sure every AT command must end with r Then reboot Wifi2UART for new Network related configurations to take effect This can be done by at reboot 1 please make sure every AT command must end with r
32. work interfaces enabled will be described in detail Wifi2UART can play the role as a server or a client and communicate with its counterpart using TCP or UDP protocol In section 4 2 Service Mode with TCP or UDP protocol various combinations of service modes and protocols will be described 4 1 Network Mode Copyright amazipoint technology Ltd All rights are reserved Page 4 of 25 Wifi2U ART Module User Manual Version 0 1 HS amazipoint Date 2015 6 5 There are four Network Modes for Wifi2UART each with different network interfaces enabled disabled UART data can be sent to those enabled network interfaces and vice versa Beside the UART to WiFi Ethernet conversion function WifiZ2UART module itself can also function as a network device 4 1 1 AP Router Mode In this mode the Ethernet WAN Ethernet LAN and WiFi AP interfaces are up and running Wifi2UART s network function is like an AP Router Serial UART data can be sent to these interfaces and vice versa We can enable the DHCP client function on the WAN interface or configure its IP statically The Ethernet LAN and WiFi AP interfaces are on the same network bridge and we can enable disable the DHCP server on these interfaces 4 1 2 Single WAN Mode In this mode only the Ethernet WAN interface is up and running Serial UART data can be sent to this interface and vice versa We can enable DHCP client on the WAN interface or configure its IP statically 4 1 3 A
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