2
3
0100000072134
GSM3 click
™
manual
ver 1.00
click
™
BOARD
www.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
™
