Discussion in "New Ideas regarding projects" started by    shyam    Apr 7, 2011.
Thu Apr 07 2011, 04:34 pm
#11
im not getting what u mean but briefly i want to read the patterns drawn on the touch pad through microcontroller and run the robo


[ Edited Thu Apr 07 2011, 04:36 pm ]
Thu Apr 07 2011, 04:47 pm
#12
ya s u have to read the touch screen data through mc ..... the data read and write the touch screen as some standards... refer the data sheet..
Thu Apr 07 2011, 04:51 pm
#13
hmm i know how to read the values form that touch pad and make the robo move but my problem is how can i make the patterns drawn on the touch pad
detected........
Thu Apr 07 2011, 10:25 pm
#14
The problem seems to be storing the pattern drawn, then sending movement
commands to make it follow the map.
This is mainly a software question, but will depend on the memory
available in your micro.

I would suggest you start by sending the "drawing" to a PC.
Use the PC to store the image and work out the movements,
then send move commands back to the micro.

When you get it working you will be in a better position to
write code for the micro.

Use a usb--serial adapter to connect your micro and PC.
Fri Apr 08 2011, 08:28 am
#15


I would suggest you start by sending the "drawing" to a PC.
Use the PC to store the image and work out the movements,
then send move commands back to the micro.

When you get it working you will be in a better position to
write code for the micro.

ExperimenterUK




how can i achive this yar this is the exact problem i had how to do this .......
Mon May 02 2011, 05:32 pm
#16
Shyam,
Did you purchased it from NSk?
Are you successful with interfacing 4 wire Touch screen with AVR?
Pls share with us.
Tue May 03 2011, 06:00 pm
#17
no yarr i havnt been sucessful in doing so .....any if have done plzz share
Wed May 04 2011, 09:28 am
#18
here is the easiest way to interface a simple 4-wire resistive touch screen.

http://mehtadhaval.blogspot.com/2011/04/touch-screen-interfacing-with.html
Fri Jun 01 2012, 11:42 pm
#19
Shyam,

In case you are still looking for a solution, the company I work for (Reach Technology) makes display modules using LCD panels with resistive touch screens in various sizes. Our display modules use ASCII strings sent over a standard RS232 port for commands and replies. You can download bitmap images to the display module, then send it commands to draw buttons, sliders, gauges, etc. using these bitmaps. The display module will send your controller notifications (ASCII strings) when a button (or any other hotspot) is pressed. There are no libraries to include into your application, and you may use any programming language that you prefer. You just need the ability to send/receive ASCII strings over a serial port.

The general spec's are:

screen size - resolution
4.3" - 480x272
5.7" - 320x240
7" - 800x480
8.4" - 640x480

More information can be found on our web page: http://www.reachtech.com/products/display_modules/

Ralph

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