Keypad - SimCom SIM508EVB User Manual

SIM508 EVB User Guide

4.2 Keypad

Pin Signal
1 KCOL0
2 KROW0
3 KCOL1
4 KROW1
5 KCOL2
6 KROW2
7 KCOL3
8 KROW3
9 KCOL4
10 KROW4
11 GPIO32
12 PWRKEY
13 GND
14 VBAT
SIM508-EVB_UGD_V1.01
Figure 15: Keypad interface
I/O
O
I
O
I
O
I
O
I
O
I
I/O
I
I
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Description
Keypad array interface
GPIO32 reserved for user.
power on key
GND
VBAT
SIMCOM