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0100000072134
GSM3 click™ manualver 1.00
click™
BOARDwww.mikroe.com
2. Soldering the headers
1. Introduction
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
The underside of GSM3 click™ holds the SIM card slot. Aside from that the click™ has the
following additional features: audio input/output connection pad (for microphone
and earphones, can also be used as an FM
antenna). The STM800H module supports
Bluetooth so the click™ has an active
2.4GHz antenna. A connector for an external GSM antenna is also provided.
Two indication LEDs signal the operating
and network status of the module.
1
GSM3 click™ carries SIM800H, a quad-band
(850/900/1800/1900MHz) GSM/GPRS
module that transmits voice, sms and data
information. The board communicates
with the target board MCU through the
following mikroBUS™ lines: Tx and Rx
(UART), RST (reset), GP1 (status indicator),
GP2 (RTS), GP3 (GPIO1), GP4 (PWRKEY,
used to power on/off the module) and GP5
(CTS). GSM3 click™ is designed to use 3.3V
and 5V I/O voltage levels.
GSM3 click™
MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document. Specification and information contained in the present schematic are subject to change at any time without notice. Copyright © 2014 MikroElektronika. All rights reserved.
5. GSM3 click™ board schematic
8. Support
7. Code examples
MikroElektronika offers 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.
Resolder the onboard zero ohm SMD jumper to select between 3.3V or 5V I/O voltage levels (soldered in the 3.3V position by default).
6. SMD jumpers
ANRSTCSSCK
MOSIMISO
+3.3VGND
PWMINT
RXTX
SCLSDA+5VGND
MIKROBUS DEVICE CONN.
GSM ANT
1
5
237
48VCC
GND
RSTCLKIO
CD2CD1
U4
SIM_CARD
LD1
LD2 LD3
R2100K
+5V
+5V
R12K2
GND
+5V
R310K
R41K5
E2
10uF
GND GND
Vg sm
GND
C2
100nF
GND
GND
C4
100nF
VDD_EXT
GND GND
GND GND
Q1BC846R5
1K
GND
R6100K
GND
7654321
22212019181716151413121110
98
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
45464748495051525354555657585960616263646566
67686970717273747576777879808182838485868788
VBATGNDGPIO1STATUSBPI_BUSIGNDVBUSGNDMIC2PMIC2NSPK2NMIC1NSPK1NSIM_DATASIM_RSTVSIMFM_ANT_PVDDEXTUSB_DMCOL0COL3COL2
PCMINPCMSYNC
NETLIGHTROW4ROW0ROW2ROW1
USB_DPGND
FM_ANT_NVRTC
SIM_CLKSIMPRE
SPK1PMIC1PSPK2P
ADCRESET
PWRKEYISINK0ISINK1
GND
RO
W3
CO
L4C
OL1
PWM
GPI
O2
GPI
O3
PCM
CLK
PCM
OU
TR
XDTX
DR
TSC
TSG
ND
BT_A
NT
GN
DG
ND
GN
DA
NT
GN
DV
BAT
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DG
ND
GN
DSD
ASC
LG
ND
GN
DG
ND
UA
RT_
DC
DU
AR
T_D
TRU
AR
T_R
IG
ND
SIM800H
U1SIM800H
GNDQ3BC846R12
1K
GND
R13100K
GND
VCC
R143K3
Q4BC846R15
1K
GND
R16100K
GND
VCC
R173K3
Vgsm
GND
R9 22R10 22R11 22
C7
22pF
GND GND
VCC
C1100nF
E1
10uF
E3
470uF
C3
100nF
GND GND
Vg sm
GND
GND
C5
33pF
C6
10pF
GND
VDD_EXT
GND
STATRSTRTSGPIO1
CTSTXDRXD
!GPIO1
!RXD!TXD!RTS!CTS!STAT
GPIO1
RXDTXDRTSCTS
STAT
PWRKEY
!PWRKEY
!GPIO1!STAT
!STAT
SIM_DATASIM_RST
FM_ANT_P
!RXD
!TXD
!RTS
!CTS
BT_A
NT
GSM
_AN
T
NETLIGHT
NETLIGHT
SIM_CLKSIMPRE
SIMPRE
GND
PWRKEY
!PWRKEY
SIM_VCCSIM_RST
SIM_DATASIM_CLK
GSM_ANT
BT_ANT
E410uFE510uF
SIM_VCCFM_ANT_PMIC+MIC+
EAR+
EAR+
L1270nH
GND
MIC-
E610uF
MIC-
Q2BC846R7
1K
GND
R8100K
GND
RST
!RST
!RST
D1
C8
1uF
FP1
FERRITE
C9
NP
C10
NP
GND
A1
Rufa_2.4GHz_LEFT
GND
Audio+FM antenna (earphone)connection pads
1234
HD1
AD
J5
VO
UT
4G
ND
3V
IN2
GND
6
SHD
N1
U2MCP1826T
12345678 9
10111213141516
A1VCCAA2A3A4A5A6OE
B5B6
B1VCCB
B2B3B4
GND
TXB0
106
U3
TXB0106
R18
0R
GND
+5V
+3.3V
+3.3V 1 2 3
1 LEAR - left earphone
2 REAR - rear earphone
3 MIC - microphone
4 GND
HD1
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