Datasheet

8. Support
MikroElektronika oers Free Tech Support
(www.mikroe.com/support) 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. GSM click
™
Board Schematic
+3V3
E5 10uF
RTS
C7 100nF
RST
FP1
FERRITE BEAD
1
5
2
3
7
4
8
VCC
GND
RST
CLK
IO
CD2
CD1
U3
SIM_CARD
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
DCD RING
DSR DTR
RTS
CTS
EAR-
STAT_LED
EAR+
NC
NC
TXD RXD SIMVCC
SIMRST SIMCLK SIMIO
AN1
AN2
DAC_OUT
NC
NC
MIC-
AGND
MIC+
NC
ALARM
ANTENNA
RFTXMON
BUZZER
VRTC
NC
GND
GND GND
GND
37
38
39
40
41
42
43
44
45
46
47
48
Vbat
Vbat
GPIO03
GND
GPIO02
GPIO04
GPIO01
V_AUX/PWRMON
RXD_AUX
TXD_AUX
NC
RESET#
GL865-QUAD
U1
CN1
ANTENNA
2
4
1
3
CN3
ST-328B-3
RXD
TXD
PWRMON
E4 470uF/10V
R9
1K
Q3
BC846
R10
10K
GPIO2
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
TXB0106
U2
TXB0106
+2V8
Vgsm
+5V
!RTS
!GPIO2
!CTS
!RXD
!TXD
R13
2K2
LD1
PWR
J1
+5V
+3V3VCC
C6 100nF
C2 100nF
!RST
R11
100K
+2V8
Vgsm
PWRMON
STAT_LED
TX_LED
C5 33pF
C4 33pF
C3 33pF
+2V8
GPIO1
SIM_VCC SIM_RST SIM_CLK SIM_IO
SIM_VCC
SIM_RST
SIM_CLK
SIM_IO
VCC
R12
1K
Q4
BC846
R14
100K
RST
!RST
R8
4K7
VCC
+2V8
R3
1K
Q1
BC846
R4
100K
LD2
VCC
R1
2k2
R5
1K
Q2
BC846
R6
100K
LD3
VCC
R2
2k2
STAT_LED
TX_LED
GPIO1
!RXD
!TXD
!RTS
!CTS
!GPIO2
RTS
RXD
TXD
GPIO2
CTS
E3 470uF/10V
AGND
C1
100nF
MIC+
EAR+
EAR+
MIC+
E1 10uF
E2 10uF
R7
2K2
+2V8
C8
100nF
AGND
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.
MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document.
Specication and information contained in the present schematic are subject to change at any time without notice. Copyright © 2013 MikroElektronika. All rights reserved.
6. SMD Jumper
There is one zero-ohm SMD jumper J1 which is
used to select whether 3.3V or 5V I/O voltage
level is used. Jumper J1 is soldered in 3.3V
position by default.
1234
1 2 3 4Pin Number
Description Left Audio Right Audio Microphone Common/GND