More detail about USR-wifimod-II
SerialNet(snet) mode (data transfer transparent)
When USR-wifimod-II work at serial to ethernet convert mode, support UDP, TCP Server, TCP Client mode, after USR-wifimod-II connect to a wifi network, it work as setting mode, bind a TCP or UDP port, convert data from UART to ethernet Socket.
At this work mode, you can use it as a ordinary ethernet Equipment, commulication with it via Socket at any OS and use any Programming Languages to write control software.
Sweb mode (Serial <-> Web)
USR-wifimod-II has web server inside, support long keep connection, cache control, pass Certification and form Process, AJAX etc, user can vist USR-wifimod-II via web browser, see and change the config.
USR-wifimod-II supply user flash memorey (firmware 2.1.19+), for user store pages, and supply special Sweb mod (Serial <-> Web) , for commulication with user via web browser through web pages.
If a user default page has stored as index.htm in user flash, the vister on USR-wifimod-II ip will be forward to user index.htm page.
USR-wifimod-II can read html files from flash, and also can read file from UART, it can identifi gif | png | jpg | bmp | xml | swf | css | js | class etc web files, the UART system should send data back to wifimodII after receive data require. Then USR-wifimod-II will display it on webpage.
USR-wifimod-II support octet-stream file type, it can use for download data via web browser from UART.
USR-wifimod-II support file update also, so it can submit any type file to UART.
USR-wifimod-II can setup delay and wait time for web control in Sweb mod, and setting clear cache before read UART data, to fit diffirent commutication detail and useage.
We do a lot of optimization and test for all kinds of web browser for USR-wifimod-II, but not every web browser on mobile work ok:
- ucWeb and OperaMini: did not support vist USR-wifimod-II in Local area network.
USR-wifimod-II has four leds
POWER: red, light when power on.
WLAN: greeen, light when conncet to wifi network, flash when wireless data send or receive.
NET: green, light when TCP connetec, flash when sockte data transfer.
SERIAL: green, light when UART port open, flash when data transfer.