mikroElektronika UNI HALL click User manual

2 3
ver. 1.00
UNI HALL click
™
manual
0 100000 026939
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
1
The unipolar Hall eect sensor on UNI HALL
click™is sensitive to north pole magnetic
elds—when exposed to such a eld, it
outputs a LOW logic level. Othewise the
output is a HIGH logic level. In its simplest
application, UNI HALL click™can be employed
as part of a long lasting contactless
proximity switch. However, magnets can
be employed in various ways to infer the
speed, position, or other properties of an
object; there are countless ways to utilize
UNI HALL click™in your design.
UNI HALL click™
UNI HALL click™is a simple solution
for adding an unipolar Hall switch to
your design. It carries the Melexis
US5881 unipolar Hall-effect switch and
a 74LVC1T45 single bit, dual supply
translating transceiver. UNI HALL click™
communicates with the target board
through the mikroBUS™ INT line. The
board is designed to use either a 3.3V or
5V power supply (which also defines the
logic level of the output signal).

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. UNI HALL click™board schematic
8. Support
7. Code examples
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!
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.
6. SMD jumper
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.
R1
2K2
GND GND
VCC
GND
C4
10nF
GND
R2
10K
VCC
HALL_OUT
1
2
3
Vdd
Vout
GND
U1
HALL US5881
INT_OUT
1
2
3
5
4
6
VccA
GND
A B
DIR
VccB
U2
74LVC1T45
GND
VCC-3.3VVCC-3.3V
C3
100nF
VCC
HALL_OUT
1 2 3
J1A
INT_OUT
R3
10K
GND
C1
100nF
GND
C2
100nF
GND
LED
VCC VCCVCC
LOGIC LEVEL
.com
To switch between 3.3V and 5V power sup-
plies, use the on-board zero-ohm SMD jumper.
By default it’s soldered in the 3.3V position.