J2---Key & Ctrl - SimCom SIM900B EVB Development Kit Manual
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Also See for SIM900B EVB:
- Hardware design (49 pages) ,
- Application note (35 pages) ,
- User manual (21 pages)
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SIM900B EVB User Guide
4.2 J2---KEY & CTRL
KEY & CTRL Pin List
Pin
Signal
1
KBC0
2
KBR0
3
KBC1
4
KBR1
5
KBC2
6
KBR2
7
KBC3
8
KBR3
9
KBC4
10
KBR4
11
NC
12
PWRKEY
13
GND
14
VBAT
SIM900B-EVB_UGD_V1.01
Figure 12： J2 Interface
I/O
O
I
O
I
O
Keypad array interface
I
O
I
O
I
I
power on key
GND
I
VBAT
15
Description
14.04.2010
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