User guide

Developers guidelines | AT commands
143 June 2010
AT+CKPD Keypad control (ver. 7)
<rssi> Description
0 -113 dBm or less
1 -111 dBm
2–30 -109 dBm to -53 dBm
31 -51 dBm or greater
99 Not known or not detectable
<ber>:
<ber> Description
0–7 As RXQUAL values in the table in GSM 05.08
subclause 8.2.4
99 Not known or not detectable
Description: Emulates ME keypad by giving each keystroke as a character in a string
<keys>. <time>*0.1 seconds is the time to strike each key and
<pause>*0.1 seconds is the length of pause between two strokes. This
command should be accepted (OK returned) before actually starting to
press the keys. Thus unsolicited result codes of keys that have been
pressed and display events can be returned (see AT+CMER).
The physical keypad will always have higher priority than emulation of key-
strokes via AT+CKPD. That is, if the physical keypad is operated during
execution of a series of keystrokes generated by AT+CKPD the emulated
keypad operation is to be terminated immediately.
Note: The default GSM character set does not contain the “[“ and “]” char-
acters used to emulate the left and right selection keys. Before sending
any of these keys with AT+CKPD, the character set needs to be changed,
for example, to 8859-1 by sending the command AT+CSCS=”8859-1”.
Execution
command: AT+CKPD=<keys>[,<time>[,<pause>]]
Test command: AT+CKPD=? Shows if the command is supported.
Parameters:
<keys>: String of characters representing keys as listed in the following table
(based on PCCA STD-101 Annex table I – 3). Colon character (IRA 58) fol-
lowed by one character can be used to indicate a manufacturer specific
key not listed here. All characters from a semicolon character (IRA 59) to
the next single semicolon characters are treated as alpha entries and are
not converted to key equivalents. All semicolon characters inside alpha
entries should be duplicated in the TE and stripped to one before entering
to the ME. All IRA values not listed here are reserved.
Note: The SEND and END keypad values should be mapped to appropri-
ate keys.
Char IRA (dec) Comment (+ some known key
symbols)
# 35 Hash (number sign)
* 42 Star (*)