Instruction Manual

9 Keypad
9.1 Introduction
The PK162-12 supports up to a 12 key, matrix style, keypad and may be configured to allow key presses
to be automatically transmitted via RS-232 or polled through I
2
C. The PK162-12 also allows for auto-
repeating key presses, and remapping of all keypad character codes.
9.2 gpo_CMD_GPOtoggle()
9.2.1 Meta
Short Toggle Keypad/GPO mode
Remember Yes
9.2.2 Parameters
Mode 1 0: Keypad, 1: GPO
9.2.3 Description
The 162-12 uses the same port for keypad and GPO. This command will allow you to toggle the display
between GPO or Keypad mode. To use the GPO’s send cmd 254 / 37 / 1. To go to keypad mode, cmd 254 /
37 / 0 must be sent.
9.3 Auto Transmit Key Presses On
Syntax
Hexadecimal 0xFE 0x41
Decimal 254 65
ASCII 254 “A”
Description In this mode, all key presses are sent immediately to the host system
without the use of the poll keypad command. This is the default mode
on power up.
Remembered Yes
Matrix Orbital PK162-12 36