2 3
2. Soldering the headers
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into the desired
mikroBUS™ socket. Make sure to align the
cut in the lower-right part of the board with
the markings on the silkscreen at the
mikroBUS™ socket. If all the
pins are aligned correctly,
push the board all the way
into the socket.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
Turn the board upside down so that
the bottom side is facing you upwards.
Place shorter pins of the header into the
appropriate soldering pads.
Before using your click board™, make sure
to solder 1x8 male headers to both left and
right side of the board. Two 1x8 male headers
are included with the board in the package.
4. Essential features
GSM2 click with its Quectel M95 FA IC is
ideal for mobile devices. The module is a
quad-band GSM/GPRS engine that works at
frequencies of GSM850MHz, GSM900MHz,
DCS1800MHz or PCS1900MHz with 85.6
kbps GPRS data transfer. It supports
internet service protocols, such as TCP/IP,
UDP, FTP and PPP.
1
GSM2 click is an accessory board in
mikroBUS™ form factor. It’s a compact and
easy solution for adding a GSM module to
your design. It carries a Quectel M95 FA
GSM module, audio connector, SIM card
socket as well as an SMA antenna connector.
GSM2 click communicates with target board
microcontroller via mikroBUS™ UART (Tx, Rx),
PWM, INT, AN, RST and CS lines. The board
is designed to use 3.3V and 5V I/O voltage
levels. LED diode (GREEN) indicates the
presence of a power supply.
GSM2 click
1. Introduction
GSM2 click manual
ver 1.01b
0100000076521
click
BOARD™
www.mikroe.com
5
4
8
+3V3
RTS
1
2
3
7
VCC
GND
RST
CLK
IO
CD2
CD1
U3
SIM_CARD
CN1
ANTENNA
2
4
1
3
CN3
ST-328B-3
RXD
TXD
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
Vgsm
+5V
!RTS
!CTS
!RXD
!TXD
VDD_EXT
!STAT
NET_LED
C5
33pF
C4
33pF
C3
33pF
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
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-
DTR
RI
RXD
NC
NC
SPK1+
LOUDSPK-
LOUDSPK+
PWRKEY
EMG_OFF
STAT
NETLD
RXDdbg
TXDdbg
NC
VDD_EXT
TXD
CTS
RTS
DCD
SIM_RST
VBAT
SIM_IO
SIM_VDD
SIM_CLK
SIM_GND
VRTC
VBAT
GND
GND
37
38
39
40
GND
GND
GND
ANT
QUECTEL M95
41 NC
42 NC
U1
QUECTEL M95 FA
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
VDD_EXT C1
2.2uF
FP1
FERRITE
BEAD
+5V
E7
10uF
R8
100K
R11
10K
Vgsm
C16
2.2uF
6
2
3
4
5
SHDN
GND
VOUT
ADJ
1
VIN
GND
U4
MCP1826
R15
470
MIKROBUS DEVICE CONN.
1 2 3 4Pin Number
Description Left Audio Right Audio Microphone Common/GND
1234
Vgsm
E4 470uF/10V
C6 100nF
E3 470uF/10V
R13
2K2
LD1
PWR
J1
+5V
+3V3VCC
E5 10uF
C7 100nF
8. Code examples
MikroElektronika oers free tech support
(www.mikroe.com/support) until the end of
the product’s lifetime, so if something goes
wrong, we’re ready and willing to help!
Once you have done all the necessary
preparations, it’s time to get your click board™
up and running. We have provided examples
for mikroC™, mikroBasic™ and mikroPascal™
compilers on our Libstock website. Just
download them and you are ready to start.
.com
6. Dimensions
MikroElektronika assumes no responsibility
or liability for any errors or inaccuracies
that may appear in the present document.
Specication and information contained in
the present schematic are subject to change
at any time without notice.
Copyright © 2015 MikroElektronika.
All rights reserved.
mm mils
LENGTH 64.15 2525
WIDTH 25.4 1000
HEIGHT* 16 630
5. Schematic
7. SMD jumper
9. Support
25.4 mm / 1000 mils
64.15 mm / 2525 mils
* without headers
10. Disclaimer
There is one zero-ohm SMD jumper J1 used
to select whether 3.3V (default) or 5V I/O
voltage level is used. Note that, regardless
of the logic level, the module requires a 5V
power supply in both cases.
