Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 169 2012.12.10
Reference Note
z When the keypad indication is enabled, all the keypad GPIOs will be
configured as keypad.
z Before keypad indication function is enabled, SGPIO command
should be executed first to set any one of the keypad GPIOs as a
keypad.
z This command is not supported in all versions.