SERIAL TO WIFI MODULE [UART, RS232, TTL, WIFI, WIRELESS] IN INDIA

Product Description This is a wifi solution based on IC ESP from Espressif, very price competitive wifi module, and also great function. Bring your project to the internet of things easily! Features: Very competitive price AP, STA, AP+STA modes available. Very simple AT commands, easy to use. internal LWIP interface. Only four pins interface, VCC-3V3, GND, TXD and RXD. Current firmware V091 for all stock, new reserved reset and CH_PD (for updating) pins available, you can refresh the firmware now. All using new ESPex new chip, old chip is not available anymore. Pin description Pin High Status Low Status Note VCC, GND Use standalone power source, or large capacitor, all power of this module from external TXD, RXD The serial port RST - restart CH_PD Flash boot and Update Mode - chip enable, so always connect to high status with VCC GPIO0 - Update mode GPIO2 - - GPIO 15 (when avaialble) NC Flash boot Mode Only for a few version, Wi07-3 GPIO 12 GPIO 13 GPIO 14 GPIO 16 Hardware RST No need any pull-up   AT Commands Format Baud rate at (new line) use option "send new line" or 'carriage return' for each command x is the commands Set Inquiry Test Execute AT+ = AT+ ? AT+ =? AT+ AT+CWMODE= AT+CWMODE? AT+CWMODE=? - Set the network mode Check current mode Return which modes supported - Commands carefully there are must be no any spaces between the " and IP address or port Commands Description Type Set/Execute Inquiry test Parameters and Examples AT general test basic - - - - AT+RST restart the module basic - - - - AT+GMR check firmware version basic - - - - AT+CWMODE wifi mode wifi AT+CWMODE= AT+CWMODE? AT+CWMODE=? 1= Sta, 2= AP, 3=both, Sta is the default mode of router, AP is a normal mode for devices AT+CWJAP join the AP wifi AT+ CWJAP =, AT+ CWJAP? - ssid = ssid, pwd = wifi password AT+CWLAP list the AP wifi AT+CWLAP AT+CWQAP quit the AP wifi AT+CWQAP - AT+CWQAP=? AT+ CWSAP set the parameters of AP wifi AT+ CWSAP=,,, AT+ CWSAP? ssid, pwd, chl = channel, ecn = encryption; eg. Connect to your router: AT+CWJAP="www.shanrittech.com","helloworld"; and check if connected: AT+CWJAP? AT+CWLIF check join devices' IP wifi AT+CWLIF - - AT+ CIPSTATUS get the connection status TCP/IP AT+ CIPSTATUS,,,, = client or server mode AT+CIPSTART set up TCP or UDP connection TCP/IP 1)single connection (+CIPMUX=0) AT+CIPSTART=,,; 2) multiple connection (+CIPMUX=1) AT+CIPSTART=,, - AT+CIPSTART=? id = 0-4, type = TCP/UDP, addr = IP address, port= port; eg. Connect to another TCP server, set multiple connection first: AT+CIPMUX=1; connect: AT+CIPSTART=4,"TCP","X1.X2.X3.X AT+CIPMODE set data transmission mode TCP/IP AT+CIPMODE= AT+CIPSEND? 0 not data mode, 1 data mode; return "Link is builded" AT+CIPSEND send data TCP/IP 1)single connection(+CIPMUX=0) AT+CIPSEND=; 2) multiple connection (+CIPMUX=1) AT+CIPSEND=, AT+CIPSEND=? eg. send data: AT+CIPSEND=4,15 and then enter the data. AT+CIPCLOSE close TCP or UDP connection TCP/IP AT+CIPCLOSE= or AT+CIPCLOSE AT+CIPCLOSE=? AT+CIFSR Get IP address TCP/IP AT+CIFSR AT+ CIFSR=? AT+ CIPMUX set mutiple connection TCP/IP AT+ CIPMUX= AT+ CIPMUX? 0 for single connection 1 for multiple connection AT+ CIPSERVER set as server TCP/IP AT+ CIPSERVER= [,] mode 0 to close server mode, mode 1 to open; port = port; eg. turn on as a TCP server: AT+CIPSERVER=, check the self server IP address: AT+CIFSR=? AT+ CIPSTO Set the server timeout AT+CIPSTO= AT+CIPSTO?