Datasheet

EA DOGL128-6
Page 7
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
12:00 VIEWING ANGLE, TOP VIEW OPTION
If the display is read mostly from above (on the front of a laboratory power supply
unit, for example), the preferred angle of viewing can be set to 12 o’clock. This
rotaties the display by 180°. A slightly different initialization
setup is required for this. Also keep in mind that the leftmost
column (normally numbered as 0) will now change to 4.
Initialisation example top view
Command
A0 D7 D6 D5 D4 D3 D2 D1 D0 He x
Remark
(8) ADC set 0 1 0 1 0 0 0 0 0 $A0 ADC normal
(15) Common output mode select 0 1 1 0 0 1 0 0 0 $C8 Reverse COM63~COM0
TOUCH PANEL EA TOUCH128-2 (OPTIONAL)
An analog touch panel is available as an accessory. It has a self-adhesive material on its rear surface and is
simply stuck onto the display. The connection is made by means of a 4-pin flexible cable for a ZIF connector
(e.g. EA WF100-04S) with a grid of 1.0 mm. Bending radius is
defined with min. 5mm. For optimum readability we recommend
that you use a backlight with the display.
Interfacing to a processor
can be either done by an
external touch panel
controller or with a
controller that is featured
with analogue input. The
touch panel is similar to a
potentiometer: connecting
a voltage of e.g. 3.3V to the
pins Top-Bottom makes it
possible to read out a
voltage on pin Left or Right
which is linear to the Y-
coordinate of the pressed
point. The X-coordinate will
result when the voltage will
be supplied to Left-Right and measurement is done at Top or Bottom.
The pinout of the connecting cable is shown in the drawing.
USB-TEST BOARD EA 9780-2USB
For easy startup, a USB test board is available that can be connected to a PC. A USB cable and Windows
software is supplied with the product. This allows text and images (BMP) to
displayed directly on the connected display. You will find more information
on the test board in the EA 9780-2USB data sheet.
SIMULATION WITH WINDOWS
A simulator window also displays the contents of the display. The software
can simulate all the displays and colors even without the hardware. You can
download the software free from our website:
http://www.lcd-module.de/deu/disk/startdog.zip
Specification
Specification min max Unit
Top-Bottom 100 400
Ω
Left-Right 110 410
Ω
Voltage 3 12 V
Current 5 25 mA
Linearity 1,5 %
Force 45 65 g
Contact
Bounce
5 10 ms
Op.
Temperatur
-20 +60 °C
Stor.
Temperatur
-20 +70 °C
Transmission 75 85 %
Life Time 10000 Cycles
Orientation for 12 o’clock
(Top View)