mikroElektronika Alcohol click User manual

1. Introduction
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....
3. Plugging the board in
2 3
2. Soldering the headers
1
4. Essential features
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.
click
BOARD
www.mikroe.com
Alcohol click™is a simple solution for adding
a high-sensitivity alcohol gas sensor to
your design. The board features an MQ-3
sensor with a Sn02 gas sensing layer, a
calibration potentiometer, a mikroBUS™
host socket, two jumpers and a power
indicator LED. Alcohol click™communicates
with the target board through mikroBUS™
AN (OUT) line. Alcohol click™is designed to
use a 5V power supply only.
Alcohol click™can detect alcohol gas leves
in concentrations from 0.04 to 4mg/l. The
MQ-3 alcohol sensor has a sensor layer
made of Tin dioxide (SnO2), an inorganic
compound which has lower conductivity
in clean air. The conductivity increases as
the levels of alcohol gas rise. Alcohol click™
also contains a potentiometer that lets
you adjust the sensor for the environment
you’ll be using it in.
Alcohol click Manual
ver. 1.00
0 100000 026281
Alcohol click

8. Support
MikroElektronika oers 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!
7. Code examples
.com
Once you have done all the necessary prep-
arations, 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.
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 © 2014 MikroElektronika. All rights reserved.
5. Alcohol click™board schematic 6. Calibration potentiometer
To calibrate Alcohol click™for optimum
performance, use the on-board potenti-
ometer to adjust the Load Resistance of
the sensor circuit.