2. Soldering the headers
Before using your click board, make sure
to solder the provided 1x8 male headers
to both sides of the board. Two 1x8 male
headers are included with the board in
the package.
4. SMD Jumpers
Frequency
scaling
and
sensitivity
selection
of the sensor can be set by
bringing the logic combination to
S0
–
S3
lines
according to sensor specification. This can
be done by soldering
corresponding
SMD
jumpers to appropriate
logic voltage levels, or
they can be connected
to your MCU and
determined by software. Board comes with
SMD jumpers which are set to
ON-BOARD
configuration of scaling and sensitivity. If you
want those lines to be available to your MCU,
just resolder SMD jumpers to
MCU
position.
Default on-board configuration for scaling
is
(S2, S3) = (H, H),
and for sensitivity is
(S0, S1) = (H, H).
1
3
LightHz
click
1. Introduction
2
Front and back side appearance
of the LightHz click Board
LightHz Click is an accessory board in
mikroBus™
form factor. Board features
TSL230BR
programmable light-to-frequency
converter. The output can be either a pulse
train or a square wave (50% duty cycle)
with frequency directly proportional to light
intensity. Device sensitivity and frequency
scaling can be determined by the MCU, or
selected using available SMD jumpers if used
in hardware selection configuration. Solder
PWR SEL
SMD jumper to 5V position if used
with 5V systems.
Turn the board upside down, so that
bottom side is facing you upwards. Place
shorter parts of the header pins in the
both soldering pad locations.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into 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.
click
www.mikroe.com
LightHz click Manual
ver. 1.00
BOARD
5. LightHz click Board Schematics
6. Sensitivity and scaling
Hardware configuration of
frequency scaling
and
sensitivity selection
can be adjusted by
resoldering
S0 – S3
SMD jumpers to
H
- logic
high or
L
- logic low positions, according to the
following table:
S0 S1
L
L
H
S0 SEL
MCU
ON-BRD
1
2
3
VCC
S0
H
L
1
2
3
VCC
E1
10uF
VCC
C1
100nF
VCC
P0
S0
P2
S2
1
2
3
VCC
1
2
3
S2
H
L
S2 SEL
MCU
ON-BRD
Sensitivity
Power down
1x
10x
100x
S2 S3
L
L
H
H
L
H
L
H
f
0
Scaling
1
2
10
100
L
H
L
H
H
7. Code Examples
Once you have done all the necessary
preparations, it’s time to get your click
board up and running. We have provided
the examples for mikroC, mikroBasic and
mikroPascal compilers on our
Libstock
website. Just download them and you are
ready to start.
PWR SEL
+3.3V
P1
P3
P2
1
2
3
+5V
VCC
AN
RST
CS
SCK
MISO
MOSI
+3.3V
GND
PWM
INT
TX
RX
SCL
SDA
+5V
GND
P0
FREQ
SENSITIVITY
SELECTION
S1
H
L
1
2
3
VCC
S0
S1
R1
220
1
2
3
4
U2
S0
S1
OE
GND
S3
S2
OUT
VDD
8
7
6
5
S3
S2
FREQ
VCC
1
2
3
S3
FREQUENCY
SCALING
H
L
TSL230RD
S1 SEL
ON-BRD
MCU
3
2
1
S1
P1
S3
P3
3
2
1
S3 SEL
ON-BRD
MCU
.com
8. Support
MikroElektronika offers
Free Tech Support
(www.mikroe.com/esupport)
until the
end of product lifetime, so if something goes
wrong, we are ready and willing to help!
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 © 2012 MikroElektronika. All rights reserved.
Embedded System
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