Command mode and Data mode

nandyeezforu · ‎2015-10-23

Posted on October 23, 2015 at 15:50

Hi,

I am using SPWF01SC.11.

my wifi module is connected with micro controller via UART.

Now from the micro controller i sent a command AT+S.SOCKD = 1234(portnumber)

I got a reply ''NOW IN DATA MODE''.

using the port number and IP address i connected the wifi module from my computer using the Socket test software .

Now I have sent a message from the computer.

I would like to know what will happen to the message received in the data mode,

can i receive the same message on the micro controller via UART?

what will happen if i send data from micro controller to the wifi module in the data mode?

I read some manual it is confusing,thats why I am looking for experts guidance :)

laerte · ‎2015-10-23

Posted on October 23, 2015 at 16:13

Hi John,

if you send some data via uart during data mode all the stream will be transmitted as data stream via wifi. If you want to return to command mode you have to send via uart the escape sequence AT+S. in a single shot transmission without <CR> at the end.

I suggest you to read the ''socket server Application note''

Cheers

nandyeezforu · ‎2015-10-23

Posted on October 23, 2015 at 17:01

Hi laerte,

I got your point when we send data via uart during data mode all the stream are transmitted and it is working fine for me but my doubt is

when i receive some data from air on the wifi module in data mode,will it be transferred to the micro controller via UART ?

Gerardo GALLUCCI · ‎2015-10-23

Posted on October 23, 2015 at 23:32

Hi John,

DataMode works in both directions: UART to WiFi, and WiFi to UART.

- if something is received (from MCU) over UART, it's sent to the air;

- if something is received over the air, it's sent to MCU (by UART)

nandyeezforu · ‎2015-10-24

Posted on October 24, 2015 at 09:17

Hi gerardo,

Now I am clear, thanks a lot :)