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6.1.2 Network Connection
In order to test the serial port to the WIFI network address conversion, we will module serial connected
with the computer, network and computer links to WIFI.
Due to the need to have both a WIFI and serial special requirements, only a minority of the notebook
computer can achieve, the user can use the desktop with a USB card, or use the notebook computer
with a USB to serial line way, the author uses the desktop and WIFI card form test, desktop with serial.
( Note: there USB transfer RS232 the line quality uneven, some good and some bad, in order not to
waste your valuable time, look for buying a used FT232 chip scheme suggested switching line, about
the price $10)
On the serial connection, module pin leads to 3.3V TTL level, not directly connected with the computer,
need to bring the bottom or users are TTL to RS232 connecting line connected to the computer, in
order to facilitate the user to test the use of, we provide a variety of floor for the user to choose, here in
the case of USR-WIFI232-2.
Hardware connectivity, for module power supply, the red power indicator light, wait about 6 seconds
( internal system boot ), Ready lights, said system startup complete, can operate, entering the next
step.
6.1.3 Debug
As shown above, opened in PC program, set the COM export and open the serial port connection
Jinan USR IOT Technology Limited
USR-WIFI232-A/B/C User Manual
Figure 50
Connection
Connection
Connection
Connection diagram
Page 77 of 93
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diagram
diagram
diagram
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