Hi Anthony, First I will take a bit of time to let you know how our keypad works. Basically, when you short a Row pin with a column pin the display generates a keypress and then sends that keypress down the Tx line. If you want to ensure that the display is generating a keypress you might have to sw...

Hi Anthony,

This is strange behavior for the module. Can you double check the signal levels that you are attempting to send. TTL mode requires signal levels of 0-5V, and can be damaged if you attempt to send wrong voltage levels.

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Jon

I am sorry to hear that while trouble shooting this issue you damaged the module and I can defenetly confirm that using RS-232 communication in TTL mode will damage the display. Please email me at jklassen@matrixorbital.ca and we can talk about repairing the display. I will await your results on usi...

in order to return it to the factory defaults, please see the instructions in the manual here. Simply put it will require you to place a jumper on the middle keypad pins when you power up the unit.

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Jon

Hi ShadowRam, Welcome to the LCD forums! After reading about the problems that you are experiancing, I have a number of questions for you: 1. What are you using to power the displays? 2. Have you tested the displays using a PC? 3. Does the display appear to power on properly? 4. What type of cable a...

Hi mgrollman, The LK202-24-USB would easily be able to accomdate displaying information using USB, as well as provide you with a mode of user input with the keypad. However, after that things get a little bit complicated. The 12V GPO's on the LK202-24-USB are designed to accept PWM input from an ele...

Here's the manual for the Rev2.0 of the LK204-25: http://www.matrixorbital.ca/manuals/LK_series/LK204-25/LK204-25_rev_20.pdf You can find a picture of the pins to short in there (as well as a description on how to do it). But without the fancy pictures, here whatcha do: 1. Power off the display 2. P...

sorry to just jump in here, but what are you running at 90C? (just for curiousity sake really) But back to your question about where to put the temp probes. I usually recommend that if you want to use the temp probe to monitor your cpu try placing it underneath your motherboard, and just use some ta...

Hi, Thanks for posting! I believe the post you are referring to may be exeriancing issues with static buildup (or electromagnetic interferance) and this is causing him to experiance irregular operation, however I will not be certain until the problem has been pinpointed. That said, I would not recom...

Hi Patrik, Sorry for the delay in responding. Are you using the internal, or external USB cable to connect to the display? The internal cable tends to be more sensitive to static, and can cause the display to apear to have 'locked up'. The solution to this is to either use the external usb cable (an...

Hi Marvin, Thanks for posting! While I am sorry to hear about the trouble that this has caused you, I am glad that we now have the oportunity to fix this issue so that other people may benifit, thank you for your contribution. Now all that's left for me to do is to go through the manuals and update ...

Hi Jose, The matrix style keypad header on our displays are designed to generate a keypress when a row pin is shorted with a column pin. This means you would have to have a wire coming from a row pin from the display, and another wire coming from a column pin, and then when the button is pressed the...

You may want to try updating your driver with the ones on the FTDI web site:

http://www.ftdichip.com/Drivers/VCP.htm

Let me know if this helps you at all.

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Jon

Hi Mezzro, I've noticed that you posted this a couple days ago.. Have you had any success yet? If not, it would help us to know the following: Did you purchase the temperature probes from us? (if not where did you purchase them and what was the product name/number) Have you set up temp probes with o...