Datasheet

2 3
ver. 1.00
Illuminance click
™
manual
0 100000 027288
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 TSL2561 sensor on Illuminance click
™
is
designed to mimic the way humans perceive
light. Conventional light sensors are too
sensitive to infrared light to be suitable for
measuring ambient lightning. The sensor on
Illuminance click
™
has two photodiodes. One
is sensitive to the full-spectrum of light, the
other to infrared light only. The visible-spec-
trum of light can then be deduced by using a
formula. Applications include brightness ad-
justment for LCD and OLED displays, based
upon ambient lighting conditions.
1
Illuminance click
™
is a light sensor suited for
detecting ambient lighting (compared too
conventional light sensors that are overly
sensitive to infrared). It carries TSL2561,
a light-to-digital converter. Illuminance
click
™
transforms light received through
two photodiodes into a digital signal, by
way of two ADCs. It communicates with
the target board through mikroBUS
™
I
2
C
lines: SCL (clock) and SDA (data). It uses a
3.3V power supply only.
Illuminance click
™