Search found 87 matches

by Daniel Divino
Wed Jul 12, 2017 4:17 pm
Forum: GTT Series
Topic: GTT70A Power
Replies: 9
Views: 206

Re: GTT70A Power

Hi Haz,

I see. In order to supply power from the I2C header, you will need to populate the D3 pad with a BAT720 Schottky diode. You can find one of these diodes here.

Cheers,
Daniel Divino
by Daniel Divino
Tue Jul 11, 2017 4:26 pm
Forum: GTT Series
Topic: GTT70A Power
Replies: 9
Views: 206

Re: GTT70A Power

Hi Haz,

And to confirm, the I2C header is populated on both displays?

Cheers,
Daniel Divino
by Daniel Divino
Tue Jul 11, 2017 12:07 pm
Forum: GTT Series
Topic: GTT70A Power
Replies: 9
Views: 206

Re: GTT70A Power

Hi Haz, Since D3 is not populated, you will not be able to apply any power to the display through the I2C header. The I2C header is populated on many of our GTT's allowing for I2C communication but depending on the display, D3 may not be, preventing power through I2C. I am confirming with the PCB de...
by Daniel Divino
Mon Jul 10, 2017 11:41 am
Forum: GTT Series
Topic: GTT70A Power
Replies: 9
Views: 206

Re: GTT70A Power

Hi Haz,

Power through I2C should work out of the box. No changes to the board are necessary for the unit to be powered via I2C.

If you have a multimeter on hand, you can check for a voltage at pin 3 of D3; You should see 5V.

Cheers,
Daniel Divino
by Daniel Divino
Mon Jul 10, 2017 9:45 am
Forum: GTT Series
Topic: GTT70A Power
Replies: 9
Views: 206

Re: GTT70A Power

Hi Haz, It is interesting to hear that you are unable to power up your GTT through the I2C header. How much current is your power supply providing to the display? The GTT70A uses a substantial amount of current in comparison to the smaller GTT displays that we offer. This is why we suggest that powe...
by Daniel Divino
Wed Jun 28, 2017 11:53 am
Forum: GTT Designer
Topic: GTT Design: Screen Tracking Example
Replies: 2
Views: 482

Re: GTT Design: Screen Tracking Example

Hi Haz, The GTT has an "Echo Command" that can be used to test communication. When the GTT receives an Echo command, it will simply return whatever it was requested to echo via the protocol it was requested on. e.g if you request an echo on a serial line, the GTT will return the specified value on t...
by Daniel Divino
Wed Jun 21, 2017 9:07 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Will GLK24064R-25-1U-USB-TCI work with LCDproc?
Replies: 5
Views: 278

Re: Will GLK24064R-25-1U-USB-TCI work with LCDproc?

Hi nwestfal, The commands for the GLK24064 and the GLK24064R are identical, so the 24064R should function identically as the 24064 when a new product ID is dropped in. I also noticed when I did add the product ID, and ran the GLK24064R and GLK24064, there were noticeable graphical glitches. The prop...
by Daniel Divino
Mon Jun 12, 2017 11:45 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Will GLK24064R-25-1U-USB-TCI work with LCDproc?
Replies: 5
Views: 278

Re: Will GLK24064R-25-1U-USB-TCI work with LCDproc?

Hi nwestfal, I apologize for the delay. The GX is an EOL product, so it will be difficult to find. It looks like none of our main distributors still list the item in their catalog. If you can find one from a smaller distributor, you'll be in luck, as it does work very well with LCD4Linux without nee...
by Daniel Divino
Wed Jun 07, 2017 9:27 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Will GLK24064R-25-1U-USB-TCI work with LCDproc?
Replies: 5
Views: 278

Re: Will GLK24064R-25-1U-USB-TCI work with LCDproc?

Hi nwestfal, Welcome to the forums! I've given it a quick test, and unfortunately it doesn't look like LCDproc has updated it's drivers to include the GLK24064R series of displays. When I attempted to run the client, LCDproc was unable to properly detect the GLK24064R, and returned an error. There i...
by Daniel Divino
Thu May 11, 2017 3:04 pm
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: LCD2041 Screen freeze with garbage
Replies: 12
Views: 483

Re: LCD2041 Screen freeze with garbage

Hi Radut, It's unfortunate to hear that the script didn't resolve the issue. At this point, I am unsure at what may be causing your communication woes :( There is still one more option we can try. We can try wiping the display eeprom, and resetting the display's memory entirely. Doing so will wipe o...
by Daniel Divino
Tue May 09, 2017 10:01 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: LCD2041 Screen freeze with garbage
Replies: 12
Views: 483

Re: LCD2041 Screen freeze with garbage

Hi Radut, Thanks for running the script. It looks like there might be a data lock placed on the display that is preventing commands to be sent outside of manual override mode. I have attached another script that should reset the display settings just like last time. I have also added another command...
by Daniel Divino
Mon May 08, 2017 4:00 pm
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: GLK19264a handshake bug ?
Replies: 5
Views: 262

Re: GLK19264a handshake bug ?

Hi Paul, I've done a couple of tests regarding the the software flow control. I wasn't capable of fully replicating your scenario, but I was able to get something similar. For my testing, I am sending data to the display every 10ms, and monitoring the returns coming from the display. As I attempted ...
by Daniel Divino
Fri May 05, 2017 4:46 pm
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: LCD2041 Screen freeze with garbage
Replies: 12
Views: 483

Re: LCD2041 Screen freeze with garbage

Hi Radut, I have attached a file to this message. The .usf script file attached should reset the baud rate, contrast and brightness back to factory settings. Please try uploading this script to your display. In order to upload the file, please do the following: - Unzip the file. A .usf file should a...
by Daniel Divino
Fri May 05, 2017 4:38 pm
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: GLK19264a handshake bug ?
Replies: 5
Views: 262

Re: GLK19264a handshake bug ?

Hi Paul,

Could you provide a few details regarding the size of the data chunk you are sending, and how frequently you send it? I would like to try and replicate the issue here as closely as possible.

Cheers,
Daniel
by Daniel Divino
Fri May 05, 2017 10:20 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: GLK19264a handshake bug ?
Replies: 5
Views: 262

Re: GLK19264a handshake bug ?

Hi Paul, I understand that you are facing a few issues regarding the GLK19264A's software flow control.Have you adjusted the "Almost Full" and "Almost empty" values using the "Turn Software Flow Control On" command (1.7 in the GLK19264A manual)? Using this command, you will be able to adjust the sof...