SIM300D EVB User Guide
SIM300D-EVB_UGD_V1.01 Page 14 of 19
4.2 J2---GPIO
Figure
12:
J2
Interface
KEY & CTRL Pin List
Pin
Signal
I/O
Description
1 NC
2 KROW0
I
3 NC
4 NC
5 NC
6 NC
7 NC
8 NC
9 NC
10 NC
Keypad array interface
11
STATUS
O
status of module :on or off
12 NC
13 NC
14
GPIO8
O
Control signal of BUZZER
