Input trouble with the LK-202-25

LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT Series

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Matthew
LCD?
Posts: 1
Joined: Fri Apr 10, 2009 1:38 am

Input trouble with the LK-202-25

Post by Matthew »

I have an LK-202-25, and I am having a problem with the input pins. The manual shows that the 10 pins should output up to 25 characters. However, no matter what combination I do, I only get out the same value.

I do not understand why this is. Can you help?

Thanks, Matthew
Clark
Matrix Orbital
Matrix Orbital
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Joined: Fri Aug 17, 2007 10:58 am
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Post by Clark »

Hi Matthew,

Sounds like you may have all the keypad codes set to the same value. It's possible to change the mapping of your keypad for greater customization, check out page 38 in your manual for more info.

If you are getting values such as 0 or 255 you may be having trouble reading the display correctly. Make sure your code is communicating correctly to the display, and you've got auto transmit turned on.

To change the keypad map, you'll have to issue the command code, plus 25 key down values and 25 key up values. If you want to reset the unit to the defaults listed in the manual, just send 50 0xFFs (255 decimal).

The best way to get that done will probably be with uProject. Make sure you can communicate with your display, then move over to the uploader tab. Click on the other branch and drag raw data into the command window. You'll then get a pop up window where you can enter in your command by adding bytes as they appear in the manual. Your code should start of /254//213//255//255/...

If you run into any trouble, just put up a post and I'm sure we'll be able to help you get it figured out.

Thanks,
~Troy
Troy Clark
Design & Development
Matrix Orbital
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