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PenMount Bulletin will be issued on Thursday
of the second week of each month from this
year. In this issue, the up-to-date
development of PenMount projected capacitive
touch (PCI) control is briefly presented.
After 3 years continuous research and
development since 2008, the PCI controller
for different touch screen sizes are now
ready for customers’ applications. Inherited
the spirit of full-driver-support in
PenMount resistive touch controller family,
more drivers for PCI are to be in place
soon.
For PCI touch, in every 4-8mm there is a
so-called ‘Drive’ or ‘Sense’ line (or
pattern) on the touch screen. The size of a
touch screen is therefore the major factor
to decide the number of ‘Drive’ or ‘Sense’
to connect to PCI controllers. The table
below shows the four controller boards
rolled out during last year:
|
PenMount
PCI
controllers |
Supported
size |
Interface |
Supported OS |
Supported OS
with driver source code |
|
PM1100 |
3~4.9” |
RS-232 |
Windows XP/
Vista/ 7 / Windows Embedded CE |
Linux and
Android |
|
PM1200 |
5~7.9” |
USB, RS-232,
UART, I²C and SPI |
|
PM1300 |
8~10.9” |
USB and I²C |
|
PM1400 |
11~15” |
USB, RS-232,
UART and I²C |
Remark：PCI（Projected Capacitive Input ）
The thickness of the cover glass of PCI can
be thinner from 0.4mm up to 2.8mm. This
gives the great opportunity of using gloves
(medical sanitary, anti-static or that with
material in cotton) for single or two
fingers touching.
Multiple interfaces including USB/RS232/
I²C/SPI are ready for selection on PenMount
PCI control board. Drivers for Windows
XP/Vista/7 and Windows Embedded CE are
supported. For Linux or Android, the driver
in source format is offered for customers
own development.
As we have mentioned above, the size of the
touch screen is the major factor of
selecting the right PenMount PCI
controllers. There are still others which
also contribute to the proper PCI operation
and they are Drive-Sense pin-assignment,
thickness of the cover lens, IO interface
and others. PenMount PCI controller
maintains a set of parameters to adjust the
overall performance, e.g. speed and
sensitivity. Customers may also check
through PCIMset, an in-house developed tool
offered by PenMount, to manipulate the
parameters for the best PCI control.
It might be necessary for customers to
upgrade PenMount PCI firmware in the field.
‘Pmfu’ (PenMount Field Update) is exactly
the tool to accomplish the field update to
keep the controller the most updated and
compatible. You may contact our sales people
for more detail.
While welcoming the New Year, PenMount
wishes you a Happy, Healthy and Prosperous
Year of 2012!
All of PenMount's touch software / hardware
series are designed meeting markets demands.
If you feel any particular requirements for
any individualized product specification, we
are ready to fully assist you in the
development. The software / hardware
information and drivers of PenMount
standards are available on PenMount website
at
http://www.salt.com.tw and
http://www.penmount.com. And if you
should have any comment, please also feel
free to write us at
salt@salt.com.tw or
penmount@seed.net.tw.
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