USR IOT USR-WIFI232-T, Руководство пользователя

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Low power WIFI module user manual http://en.usr.cn
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2.7. GPIO/PWM Function
USR-WIFI232-T module can provide many GPIOs, which include max 3 PWM
control pins. User devices can read/write GPIO/PWM pins status.
Table 7 USR-WIFI232-T GPIO/PWM Pin Mapping Table
When module works at PWM mode, PC and other equipts can setup connection
(TCP/UDP)
through WiFi, then read/write GPIO/PWM information through
command.

GPIO n OUT 0, Set GPIOn as output and output ‘0’, Response GPIO OK
or GPIO NOK;

GPIO n OUT 1, Set GPIOn as output and output ‘1’, Response GPIO OK
or GPIO NOK;

GPIO n GET, Read GPIOn pin status, Reok=1 or GPIO NOK

GPIO n SET, Save GPIOn set, Response GPIO OK or GPIO NOK

PWM n frequency duty, Set PWMn Channel output, Response GPIO OK or
GPIO NOK

PWM n GET, Read PWMn Channel set, Reok=frequency duty or PWM
NOK

PWM n SET, Save PWMn Channel set, Response PWM OK or PWM NOK
Notes: Please refer to Appendix B for details to use GPIO/PWM.
2.8. SOCKET B Function
USR-WIFI232-T support double socket communication, the socket B function is disabled by
default.
After the module is started, send command “AT+SOCKB” to set the connection parameter,
send command “AT+TCPDISB=on” to try to connect with TCP server, the module will stop
connecting after three failures. Send command “AT+TCPDISB=on” to make connection.
Send command “AT+TCPDISB=off” to close connection. Send command “AT+TCPLKB” to
inqure TCP connection.
Pin Num Configured
Function Describtion Default
Setting
Type
5 UART0_RX UART0_RX GPIO5 I
6 UART0_TX
UART0_TX
GPIO6 O
8 PWM Channel 3 PWM_3 GPIO18 I/O
9 PWM Channel 2 PWM_2
GPIO12
I/O
10 PWM Channel 1
PWM_1 GPIO11 I/O