The touch response on my am335x SK works well. SD card comes with a touch GUI.
Schematics and BOM
https://www.ti.com/tool/TMDSSK3358
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On Thu, Jun 3, 2021 at 5:32 PM, John Dammeyer<jo...@autoartisans.com> wrote:
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The reason I ask is based on the information here:
https://elinux.org/Beagleboard:BeagleBoneBlack_HDMI
In the past I've had the most success using an external HDMI to VGA connector
that then feeds into a Viewsonic LED 1080P Full HD monitor. VX2753MH-LED.
This one doesn't really like 1920x1080@30 so the Beagle has trouble talking to
it.
https://www.viewsonic.com/nz/products/lcd/vx2753mh-led
Do these smaller displays present as 30Hz? Seems given the capabilities of the
BBB it might be better to target a small 7" to 10" LCD display in the 1280x768
size. I know I had a lot of trouble with the Mango screens for the Replicape
project with the higher resolution. Touch on the Manga1 was crap. Support
for the entire project kind of vanished and now it turns out one of the stepper
drivers is toast. Never really got far with the Manga2 after all that
But the point is the higher res screens on a small physical footprint don't do
much so I was curious about this display and how well the touch actually worked.
John
From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
Behalf Of Peter Lange
Sent: June-03-21 2:51 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Re: BeagleBone Black (C) USB based touch not working
It was the Beaglebone USB connector.
Touch is currently not calibrated.
But on my WIN10 PC it works fine. Can recommend the display.
John Dammeyer <jo...@autoartisans.com> schrieb am Do., 3. Juni 2021, 22:27:
So it was the display USB that had the issue. Not the BBB.
How do you like the touch response on that display?
From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On
Behalf Of Peter Lange
Sent: June-03-21 12:28 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Re: BeagleBone Black (C) USB based touch not working
Hi Robert,
it's solved. Hardware, the USB connector.
Was able to solder, now it works fine.
Sometimes there was a second entry with lsusb. Then I found out, it's the
connector, with a little pressure it worked.
Then microscope, solder iron....
I spent 2 days and nights on that 😭
But I learned a Lot
Thanks to all
Kasimir
Robert Nelson <robertcnel...@gmail.com> schrieb am Do., 3. Juni 2021, 15:37:
>
> The project requires the pru units, that works fine.
> Touch is eating up my time. And I expect it makes no sense to order other
> touch displays and the status is still the same.
> USB based touch was expected as "best and simple" solution. I need SPI and
> GPIO for surrounding hardware. That works fine.
> HDMI is required to have the possibility to connect "any" monitor. There is
> 1m distance between BBB and display.
> RPI is not an option for me, because I need the PRU's.
lsusb ? i don't see it showing up in dmesg..
Regards,
--
Robert Nelson
https://rcn-ee.com/
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