- Sun Jul 02, 2017 3:53 pm
#67832
https://espressif.com/sites/default/files/documentation/4a-esp8266_at_instruction_set_en.pdf
is the link to the official Espressif AT command
Throughout, the document, you see
AT+SYSIOSETCFG=12,3,1 //Set GPIO12 to work as a GPIO, but that is wrong.
I get ERROR response from the ESP-01.
The correct command is AT+SYSIOSETCFG=12,0,1
The reason I know this is that when I sent AT+SYSIOGETCFG=0, I received the response +SYSIOGETCFG:0,0,1
I was trying to set the configuration for GPIO2 on my ESP-01 module running v2.1.0 of the official Espressif firmware.
In summation, GPIO2 is not in GPIO mode, and GPIO0 is in GPIO mode.
So, you need to send
is the link to the official Espressif AT command
Throughout, the document, you see
AT+SYSIOSETCFG=12,3,1 //Set GPIO12 to work as a GPIO, but that is wrong.
I get ERROR response from the ESP-01.
The correct command is AT+SYSIOSETCFG=12,0,1
The reason I know this is that when I sent AT+SYSIOGETCFG=0, I received the response +SYSIOGETCFG:0,0,1
I was trying to set the configuration for GPIO2 on my ESP-01 module running v2.1.0 of the official Espressif firmware.
In summation, GPIO2 is not in GPIO mode, and GPIO0 is in GPIO mode.
So, you need to send
Code: Select all
AT+SYSIOSETCFG=2,0,1 //set GPIO2 to GPIO mode with internal pullup
AT+SYSGPIODIR=2,1 //set GPIO2 to output mode
AT+SYSGPIOWRITE=2,1 //set GPIO2 to high
