Go to advanced search

by KenT2
Sun Nov 03, 2019 3:41 pm
Forum: Other projects
Topic: Power bank for the raspberry pi 4
Replies: 7
Views: 585

Re: Power bank for the raspberry pi 4

amazon says 5v/3A so not enough for your 5Amp requirement
by KenT2
Tue Oct 08, 2019 1:30 pm
Forum: Graphics, sound and multimedia
Topic: PiPresents drops to Desktop when video is selected. How to prevent?
Replies: 3
Views: 432

Re: PiPresents drops to Desktop when video is selected. How to prevent?

Sounds like you are not using the -f command line option to make PP full screen Ken, I have now done this so it runs full screen and disabled blanking and everything works perfectly except while my video screensaver is running and i select a video, it drops out to the image background for about a h...
by KenT2
Tue Oct 01, 2019 7:26 am
Forum: Graphics, sound and multimedia
Topic: PiPresents drops to Desktop when video is selected. How to prevent?
Replies: 3
Views: 432

Re: PiPresents drops to Desktop when video is selected. How to prevent?

Sounds like you are not using the -f command line option to make PP full screen
by KenT2
Fri Sep 27, 2019 9:41 pm
Forum: General discussion
Topic: Pi 4 with dvi(official 7” display) + hdmi touch screen spanning
Replies: 1
Views: 124

Re: Pi 4 with dvi(official 7” display) + hdmi touch screen spanning

You need to use the xinput command to scale the touch from the extended screen back to the touchscreen

see here:
https://www.raspberrypi.org/forums/view ... 7#p1536959
by KenT2
Sun Sep 22, 2019 7:49 am
Forum: Beginners
Topic: Button in tkinter and GPIOZero
Replies: 3
Views: 123

Re: Button in tkinter and GPIOZero

gpiozero and Tkinter both have a Button class. You are not distinguishing between them.
by KenT2
Tue Sep 17, 2019 6:33 pm
Forum: General discussion
Topic: Disable LCD Touchscreen Display
Replies: 3
Views: 180

Re: Disable LCD Touchscreen Display

What I really want is the HDMI display when its plugged in at boot to be screen 0 and the LCD to be screen 1. If the HDMI is not plugged in at boot, then the LCD should be screen 0. From what I've read it seems that with the LCD installed, any use of the HDMI is problematic. Given that, is there a ...
by KenT2
Mon Sep 16, 2019 11:23 am
Forum: Raspbian
Topic: Buster bug report thread
Replies: 241
Views: 40449

Re: display-rotate=1 seems incompatible with vc4-fkms-v3d on Pi 4

Buster 4.19.66-v7l+ #1253 SMP Thu Aug 15 12:02:08 BST 2019 Adding "display-rotate=1" to /boot/config.txt when using a rotated screen ( Dell P2418HT ) produces an appropriately rotated image of incorrect proportions. The LH part of the image occupies the top half of the portrait screen, and the RHS ...
by KenT2
Mon Sep 16, 2019 6:52 am
Forum: Beginners
Topic: Dual HDMI Output on RPi 4
Replies: 8
Views: 370

Re: Dual HDMI Output on RPi 4

DirkS wrote:
Sun Sep 15, 2019 8:28 pm
jamesh wrote:
Sun Sep 15, 2019 8:23 pm
Go to the screen configuration utility
OP is running Lite (no desktop)...
use the xrandr command
by KenT2
Wed Sep 11, 2019 7:25 am
Forum: Python
Topic: Looping Video w/ External Triggers
Replies: 4
Views: 231

Re: Looping Video w/ External Triggers

Pi Presents could do this without any programming Looking into this now. Thanks for the tip! Use a repeating mediashow with the video as the single track and the input from the robot as a the start trigger. If you need tighter sync then look at the video playout section of the manual where the vide...
by KenT2
Wed Sep 11, 2019 7:14 am
Forum: General discussion
Topic: Scheduled video player
Replies: 1
Views: 76

Re: Scheduled video player

Pi Presents, use a liveshow for the folder
by KenT2
Tue Sep 10, 2019 6:23 pm
Forum: Python
Topic: Looping Video w/ External Triggers
Replies: 4
Views: 231

Re: Looping Video w/ External Triggers

Pi Presents could do this without any programming
by KenT2
Fri Aug 30, 2019 7:48 am
Forum: Official Foundation Display
Topic: Rotate touch on Pi4
Replies: 10
Views: 2333

Re: Rotate touch on Pi4

So why does my code below which references the FT5406 driver work on a Pi4. :? You don't need code just type the required xinput commands into a terminal https://wiki.ubuntu.com/X/InputCoordinateTransformation https://wiki.archlinux.org/index.php/Calibrating_Touchscreen If a RPi engineer does chime ...
by KenT2
Tue Aug 27, 2019 9:10 pm
Forum: Official Foundation Display
Topic: Rotate touch on Pi4
Replies: 10
Views: 2333

Re: Rotate touch on Pi4

Have you looked at the link I supplied earlier. It led me to write the code below. It does not rotate the touch by 90 degrees but it does scale the touchscreen on both Model 3 and 4. Just change the matrices to do 90 degree rotation. A clever mathematician than me will be able to calculate the matri...
by KenT2
Sat Aug 24, 2019 5:21 pm
Forum: Troubleshooting
Topic: RPi4 - Unable to rotate display 90 or 270 degree
Replies: 4
Views: 345

Re: RPi4 - Unable to rotate display 90 or 270 degree

Look at the xrandr command which is behind the arandr screen configuration utility.
by KenT2
Sat Aug 24, 2019 10:48 am
Forum: Troubleshooting
Topic: RPi4 - Unable to rotate display 90 or 270 degree
Replies: 4
Views: 345

Re: RPi4 - Unable to rotate display 90 or 270 degree

I think you have to do it from the Screen Configuration utility.
by KenT2
Mon Aug 12, 2019 10:08 am
Forum: Graphics, sound and multimedia
Topic: Automate Video Playback + GPIO
Replies: 4
Views: 934

Re: Automate Video Playback + GPIO

Pi Presents will play videos and control GPIO at set times from the start of the track
by KenT2
Wed Aug 07, 2019 8:39 pm
Forum: Graphics, sound and multimedia
Topic: environment for digital signage
Replies: 4
Views: 963

Re: environment for digital signage

pipresents gapless does

Go to advanced search