EA DOGM128-6

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°.Aslightly different initialization setup is required

for this.Also keep in mind that the leftmost column (normally

numbered as 0) will now change to 4.

Assembling for 12:00 (Top View)

Initialisation example top view

Command

A0

D7

D6

D5

D4

D3

D2

D1

D0

Hex

Re mark

(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 TOUCH128-1 (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 theY-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.

Specification

Specification

min

max

Unit

Top-Bottom

120

300

Ω

Left-Right

580

900

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

ZIF CONNECTOR EA WF100-04S

As an accessory for the touch panel we do

provide a ZIF connector (4 pins) with pitch

1.0mm (SMD type). This connector „bottom

side contact“ type.

alle dimensions are in mm