8. Support
MikroElektronika off ers
Free Tech Support
(www.mikroe.com/esupport)
until the
end of product lifetime, so if something goes
wrong, we are ready and willing to help!
7. Code Examples
.com
Once you have done all the necessary
preparations, it’s time to get your click
board up and running. We have provided
the examples for mikroC, mikroBasic and
mikroPascal compilers on our
Libstock
website. Just download them and you are
ready to start.
5. GSM2 Click™ Board Schematic
+3V3
E5
10
uF
RTS
C
7
10
0n
F
FP1
FERRITE BEAD
1
5
2
3
7
4
8
VCC
GND
RST
CLK
IO
CD2
CD1
U3
SIM_CARD
CN1
ANTENNA
2
4
1
3
CN3
ST-328B-3
RXD
TXD
E4
47
0u
F/
10
V
CTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A1
VCCA
A2
A3
A4
A5
A6
OE
B5
B6
B1
VCCB
B2
B3
B4
GND
TX
B0
10
6
U2
TXB0106
Vgsm
+5V
!RTS
!CTS
!RXD
!TXD
R13
2K2
LD1
PWR
J1
+5V
+3V3
VCC
C
6
10
0n
F
VDD_EXT
Vgsm
!S
TA
T
N
ET
_L
ED
C
5
33
pF
C
4
33
pF
C
3
33
pF
SIM_VCC
SIM_RST
SIM_CLK
SIM_IO
SIM_VCC
SIM_RST
SIM_CLK
SIM_IO
VCC
R3
1K
Q1
BC846
R4
100K
LD2
VCC
R1
3K3
R5
1K
Q2
BC846
R6
100K
LD3
VCC
R2
3K3
NET_LED
!RXD
!TXD
!RTS
RTS
RXD
TXD
CTS
E3
47
0u
F/
10
V
AGND
MIC+
EAR+
EAR+
MIC+
E1
10uF
E2
C8
100nF
AGND
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
AGND
MIC2+
MIC2-
MIC1+
MIC1-
SPK1-
D
TR
RI
RXD
N
C
N
C
SPK1+
LOUDSPK-
PWRKEY
EMG_OFF
ST
A
T
N
ET
LD
R
XD
db
g
TX
D
db
g
N
C
VD
D
_E
XT
TXD
CTS
RTS
DCD
SIM_RST
VB
A
T
SIM_IO
SIM_VDD
SIM_CLK
SIM_GND
VR
TC
VB
A
T
G
N
D
G
N
D
37
38
39
40
G
N
D
G
N
D
G
N
D
A
N
T
QUECTEL M95
41
N
C
42
N
C
U1
QUECTEL M95
SIM_GND
R7
E6
10uF
SIM_GND
C2
33pF
C9
33pF
R12
1K
Q4
BC846
R14
100K
PWRKEY
!PWRKEY
PWRKEY
!PWRKEY
!RI
!RI
RI
RI
R10
2K2
VDD_EXT
C15
33pF
C11
33pF
C13
33pF
C10
10pF
C14
10pF
C12
10pF
MIC-
AGND
MiC-
!STAT
STAT
STAT
!STAT
R9
1K
!CTS
+5V
E7
10uF
R8
100K
R11
10K
Vgsm
C16
2.2uF
VDD_EXT
C1
2.2uF
6
2
3
4
5
SH
D
N
G
N
D
VO
U
T
A
D
J
1
VI
N
GND
U4
MCP1826
R15
470
MIKROBUS DEVICE CONN.
1
2
3
4
1
2
3
4
Pin Number
Description
Left Audio
Right Audio
Microphone Common/GND
MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document.
Specifi cation and information contained in the present schematic are subject to change at any time without notice. Copyright © 2012 MikroElektronika. All rights reserved.
6. SMD Jumpers
There is one zero-ohm SMD jumper
J1
used to
select whether 3.3V or 5V I/O voltage level is
used. Jumper
J1
is soldered in 3.3V position by
default.
