Remember that the Pi-Zero does not have the same memory or processor capability that the Pi-4 does. Think of it more like a Pi-2 when it comes to resources. Try your image, touchscreen and code on an old Pi-2 to see if it still works on that.
- sgh On Mon, Jun 6, 2022 at 9:17 PM Huan Truong via TriEmbed < [email protected]> wrote: > You could try watching the dmesg for any disconnection of usb > > $ sudo dmesg -w > > Then touch the screen and see if there's anything weird. > > You could also watch for x events. > > $ xev > > > > > Huan Truong > tnhh.net > > On Jun 6, 2022, at 5:38 PM, Ron Craig via TriEmbed <[email protected]> > wrote: > > > Hi, gang. > > I bought this display > <https://www.amazon.com/dp/B07L6WT77H?psc=1&ref=ppx_yo2ov_dt_b_product_details> > from Amazon. It states it works with the Pi Zero, but I cannot get Touch to > work on that. Touch works fine on a Pi 4B, but not the Zero. > Any hints? > > I have made my own cables where needed, but Touchscreen still does not > work. I am including my wiring setup below. Am I missing something? The > arrow on the OS screen moves the *first *time I touch the screen, but > will not move after that. I think it is a software issue? Are there > drivers needed for the Zero? > > > > > > > > > > > > *pi@hamclock:~ $ cat /etc/os-releasePRETTY_NAME="Raspbian GNU/Linux 10 > (buster)"NAME="Raspbian GNU/Linux"VERSION_ID="10"VERSION="10 > (buster)"VERSION_CODENAME=busterID=raspbianID_LIKE=debianHOME_URL="http://www.raspbian.org/ > <http://www.raspbian.org/>"SUPPORT_URL="http://www.raspbian.org/RaspbianForums > <http://www.raspbian.org/RaspbianForums>"BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs > <http://www.raspbian.org/RaspbianBugs>"* > > *pi@hamclock:~ $ uname -aLinux hamclock 5.10.103+ #1529 Tue Mar 8 12:19:18 > GMT 2022 armv6l GNU/Linux* > > > In the picture: > 1: Power Block (5V 3.5A) to MICRO USB power connector on the Zero W. No > under voltage warnings. All looks good. > 2: DIY 4-wire cable from JST to MICRO USB connector on the Zero W. > Substitute for the 5V+Touch connector on the side. > 3: Supplied FPC to MINI HDMI connector on the Zero. Reaches fine once I > moved the Zero to another location (was too short if the Zero was installed > where suggested). > > [image: Zero Connections small.png] > I've put Kapton tape on the back of the Zero W to prevent any electrical > shorts with the unused mounting post. > > On bootup to 32-bit Raspberry OS, the desktop appears properly and the > picture looks great. I can touch the screen EXACTLY ONE TIME, and the > arrow cursor will move to where I touched the screen. It never moves after > that. > > The application I use does not require a keyboard if I can use a > touchscreen. Without touch, I need a bluetooth mouse, which I would rather > not use. There are less expensive non-touch screens I think I could use if > touch will not work. > > Any help is greatly appreciated. I've already printed a nice case and > swinging mounting arm for this display, so I would love to keep it and use > it if I can get touch to work. > > Note that I've also tried power through the 5V IN connector, but the > behavior is exactly the same. > > Generally, are there any gotchas with Touch and the Zero or Raspberry OS > in general I could try? > > Best, > -- > Ron Craig KO4RON > J'ai bonne espérance! > > _______________________________________________ > Triangle, NC Embedded Interest Group mailing list > > To post message: [email protected] > List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org > TriEmbed web site: https://TriEmbed.org > To unsubscribe, click link and send a blank message: mailto: > [email protected]?subject=unsubscribe > Searchable email archive available at > https://www.mail-archive.com/[email protected]/ > > _______________________________________________ > Triangle, NC Embedded Interest Group mailing list > > To post message: [email protected] > List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org > TriEmbed web site: https://TriEmbed.org > To unsubscribe, click link and send a blank message: mailto: > [email protected]?subject=unsubscribe > Searchable email archive available at > https://www.mail-archive.com/[email protected]/ > > -- Scott G. Hall Raleigh, NC, USA [email protected] *Although kindness is rarely a job, no matter what you do it's always an option.*
_______________________________________________ Triangle, NC Embedded Interest Group mailing list To post message: [email protected] List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org TriEmbed web site: https://TriEmbed.org To unsubscribe, click link and send a blank message: mailto:[email protected]?subject=unsubscribe Searchable email archive available at https://www.mail-archive.com/[email protected]/
