Data Sheet

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3. Basic AT Commands
3.2.17. AT+SYSIOSETCFG—Configures IO Working Mode
3.2.18. AT+SYSIOGETCFG—Checks the Working Modes of IO Pins
3.2.19. AT+SYSGPIODIR—Configures the Direction of a GPIO
Set Command
AT+SYSIOSETCFG=<pin>,<mode>,<pull-up>
Response
OK
Parameter
•
<pin>: number of an IO pin
•
<mode>: the working mode of the IO pin
• <pull-up>
‣ 0: disable the pull-up
‣ 1: enable the pull-up of the IO pin
Note
Please refer to ESP8266 Pin List for uses of AT+SYSIO-related commands.
Example
AT+SYSIOSETCFG=12,3,1󰐇󰐇//Set󰐇GPIO12󰐇to󰐇work󰐇as󰐇a󰐇GPIO
Set Command
AT+SYSIOGETCFG=<pin>
Response
+SYSIOGETCFG:<pin>,<mode>,<pull-up>
OK
Parameter
• <pin>: number of an IO pin
• <mode>: the working mode of the IO pin
• <pull-up>
‣ 0: disable the pull-up
‣ 1: enable the pull-up of the IO pin
Note
Please refer to ESP8266 Pin List for uses of AT+SYSIO-related commands.
Set Command
AT+SYSGPIODIR=<pin>,<dir>
Response
• If the configuration is successful, the command will return:
OK
• If the IO pin is not in GPIO mode, the command will return:
NOT󰐇GPIO󰐇MODE!
ERROR
Parameter
• <pin>: GPIO pin number
• <dir>: 
‣ 0: sets the GPIO as an input
‣ 1: sets the GPIO as an output
Note
Please refer to ESP8266 Pin List for uses of AT+SYSGPIO-related commands.
Espressif
! /5816
2017.05