AT#GPIO?
Reports the read direction and value of all GPIO pins, in the format:
#GPIO: <dir>,<stat>[<CR><LF>#GPIO: <dir>,<stat>[...]]
where:
<dir> - Refer to Set section
<stat> - Refer to Set section
If <mode> = 3 or 4, the output format is:
#GPIO: <dir>,<stat>,<mode>[<CR><LF>#GPIO: <dir>,<stat>,<mode>[...]]
AT#GPIO=?
Test command reports the supported range of values of the command
parameters.
<pin>, <mode>,<dir>,<save>