
2. Soldering the headers
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.
1
OLED W click
™
1. Introduction
OLED W click™ lets you add a small but bright
and crisp display to your design. It carries
a white monochrome passive matrix OLED
display and a SSD1306 IC to control it. OLED
W click™ can communicate with the target
board either through SPI or I2C interfaces.
mikroBUS™ lines used for SPI are CS, SCK,
and MOSI (SDI); I2C output uses SCL and SDA
lines; also, both modes use PWM (A/C) and
RST lines. You select between SPI and I2C
outputs by resoldering three jumpers. OLED
W click™ uses a 3.3V power supply.
2 3
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.
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 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.
4. Essential features
OLED displays are made from a thin lm of
organic compound that emits light when
exposed to a current. Small monochrome
displays like these are ideal for displaying
text or icons. They are bright, have a wide
viewing angle and low power consumption.
The display on OLED W click™ is 19.3 x 7.8mm
with a 96 x 39px resolution. The SSD1306
controller has built-in functionalities like
contrast control, normal or inverse image
display, vertical and horizontal scrolling
functions and many more.
™
click
BOARD
www.mikroe.com
OLED W click Manual v100
0 100000 027073

5. OLED W click™ board schematic
MI9639BO-W
6. Interface selection
VDDB
VCC-3.3V
VDDB
C9
To switch from SPI to I2C output on OLED W
click, resolder all three onboard jumpers (J1,
J2 and J3) to the I2C position.
OUT
4.7uF
5
4
R3
160K
R5
20K
R4
0R
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 examples
R1
2K2
LD1
VCC-5V
C8
2.2uF
U1
1
IN
2
GND
3
EN ADJ
AP7331-ADJ
VCC-3.3V
1
C1N
C1P
NC
C2P
VSS
VDDB
C2N
RES#
CS#
BS2
BS1
VDD
R/W#
D/C#
E/RD#
D4
D3
D1
D0
D2
1
28
VCC
VCOMH
D7D6D5
NC
VLSS
IREF
for mikroC™, mikroBasic™ and mikroPascal™
compilers on our Libstock website. Just
download them and you are ready to start.
.com
8. Support
MikroElektronika oers free tech support
(www.mikroe.com/support) until the end
of the product’s lifetime, so if something
C1
1uF
C2
1uF
C3
1uF
C5
1uF
BS1
CS
I2C
SPI
I2C
SPI
I2C
SPI
D0D1SDA
RES
D/C
J1
J2
J3
VCC-3.3V
BS1
SCL
D0
SCK
SDA
D1
SDI
C6
2.2uF
C7
4.7uF
R2
390K
VCC-3.3V
RES
CS
SCK
SDI
AN
RST
CS
SCK
MISO
MOSI
+3.3V
GND
MIKROBUS DEVICE CONN.
PWM
INT
SCL
SDA
+5V
GND
TX
RX
VCC-5V
VCC-3.3V VCC-3.3V
R6
4K7
R7
4K7
D/C
SCL
SDA
goes wrong, we’re 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 © 2014 MikroElektronika. All rights reserved.