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by gadgetoid
Mon Oct 15, 2018 11:56 am
Forum: Troubleshooting
Topic: error updating my raspberry pi 3b with latest raspbian
Replies: 2
Views: 275

Re: error updating my raspberry pi 3b with latest raspbian

It looks like you might have a broken/missing `python-minimal` package. Try running `sudo apt install --reinstall python-minimal` and then retrying the update to see if it solves your problem. This could indicate SD card corruption, though, so if you experience further issues a backup/reimage might ...
by gadgetoid
Tue Apr 03, 2018 8:48 am
Forum: Device Tree
Topic: Getting the maxim98089 to work with Raspberry Pi
Replies: 3
Views: 978

Re: Getting the maxim98089 to work with Raspberry Pi

Thank you! I'll have another sprint on this soon and see where I get. My current solution did not survive removal of power, which means it's not setting up the device properly and the registers were preserved from my previous attempts to set them up manually. I see snippets in your linked examples t...
by gadgetoid
Wed Mar 28, 2018 4:02 pm
Forum: Device Tree
Topic: Getting the maxim98089 to work with Raspberry Pi
Replies: 3
Views: 978

Re: Getting the maxim98089 to work with Raspberry Pi

Caught my stupid typo in the dts source and corrected: i2c-controller = <&i2c>; to: i2s-controller = <&i2s>; I used "sudo cat /sys/kernel/debug/asoc/codecs" to get the correct name for the max98089 codec (it doesn't seem to have a friendly-name like some of these DACs do) and hacked up the hifiberry...
by gadgetoid
Wed Mar 28, 2018 3:15 pm
Forum: Device Tree
Topic: Getting the maxim98089 to work with Raspberry Pi
Replies: 3
Views: 978

Getting the maxim98089 to work with Raspberry Pi

I'm attempting to get the Maxim max98089 up and running. I'm using the TQFN evaluation kit, and have successfully got it to produce sound using the `hifiberry-dac` dtoverlay, combined with some manual control of the DAC itself over i2c to configure the audio pipeline. I am now attempting to get it t...
by gadgetoid
Wed Jan 17, 2018 11:56 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Apt-get dist-upgrade problem
Replies: 10
Views: 2747

Re: Apt-get dist-upgrade problem

As far as I'm aware, version 1.1.1 should now be available via apt, and this workaround should not be required. Some exceptions may apply for local apt caches that still include 1.1.0. ie: if you're repeating the "apt get upgrade" command but you haven't run "apt get update". This is a classic examp...
by gadgetoid
Tue Jan 16, 2018 1:25 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Apt-get dist-upgrade problem
Replies: 10
Views: 2747

Re: Apt-get dist-upgrade problem

Blast! Sorry about this folks. I didn't anticipate this as a side-effect to a library entry-point in the new release. I'm going to have to figure out how to make the entry-point Python-version-specific. For the time being I will remove the entry-point and publish a point release to fix this. Update:...
by gadgetoid
Mon Sep 18, 2017 6:09 pm
Forum: Python
Topic: Preloaded *phat* modules in Python
Replies: 1
Views: 582

Re: Preloaded *phat* modules in Python

Ahoy! Author here. Guilty as charged. I was only recently made aware that the side-effects at module load time actually have knock-on effects that I didn't know about when I originally went with this pattern. Yes the intent was to make it easier for beginners, and since the libraries interact with h...
by gadgetoid
Mon Aug 22, 2016 3:27 pm
Forum: Python
Topic: Read this if you use Python Spidev
Replies: 20
Views: 17007

Re: Read this if you use Python Spidev

I hate to resurrect an old thread, but since it comes up on Google searches for "lsbfirst" and "SPI_LSB_FIRST" I figured I'd best post the answer here. I've been working on a fix for the error leaking from lsbfirst, but the underlying cause is that this operation simply isn't supported on the Raspbe...
by gadgetoid
Wed Mar 16, 2016 4:41 pm
Forum: Official Foundation Display
Topic: [How To] Two finger touch for right click
Replies: 39
Views: 27990

Re: [How To] Two finger touch for right click

Nice work, JimmyN! :D

Glad the right udev rules cropped up via adastre. I looked blankly at the udev stuff for a long time before deciding I had no chance of figuring it out without an extensive google adventure.
by gadgetoid
Wed Mar 16, 2016 2:44 pm
Forum: Official Foundation Display
Topic: v1.1 controller board
Replies: 14
Views: 2862

Re: v1.1 controller board

I'm investigating if it's feasible for us to stock and sell just v1.1 controller boards in low quantities to meet this small demand.

I'll let you know!
by gadgetoid
Wed Mar 16, 2016 2:17 pm
Forum: Troubleshooting
Topic: Epiphany Javascript console.log()
Replies: 15
Views: 5697

Re: Epiphany Javascript console.log()

I hate to resurrect a dinosaur thread, but in this case I think it's warranted. This thread turns up in searches about how to enable the JS debugger, so for the help of future JS tinkerers, I'd like to supply the answer: Open up Terminal, and run Epiphany like so: EPHY_ENABLE_INSPECTOR=true epiphany...
by gadgetoid
Sun Feb 28, 2016 3:45 pm
Forum: Official Foundation Display
Topic: [how to] enable long touch as right click
Replies: 57
Views: 52834

Re: [how to] enable long touch as right click

Might be the source from the package, versus the one from GitHub, doesn't support the ability to specify an alternate device on the command line. I suspect you can fix it by opening up main.c, finding "/dev/twofingtouch" and replacing it with "/dev/input/event2" Achievement unlocked: You're now a po...
by gadgetoid
Sun Feb 28, 2016 11:23 am
Forum: Official Foundation Display
Topic: [how to] enable long touch as right click
Replies: 57
Views: 52834

Re: [how to] enable long touch as right click

Sorry, I totally forgot to link the developers original site, here: http://plippo.de/p/twofing Build instructions are posted, and are relatively straight forward. You don't need to perform the step: "Install the daemon by calling sudo make install" This will install a bunch of evdev rules which are ...
by gadgetoid
Sat Feb 27, 2016 3:24 pm
Forum: Official Foundation Display
Topic: [how to] enable long touch as right click
Replies: 57
Views: 52834

Re: [how to] enable long touch as right click

I chanced upon this thread again recently, and decided to have another dig for a solution. This may be a better or worse one, but it seems to work well for me: https://github.com/Plippo/twofing You either need some grasp of evdev rules ( which I don't have, yet ) or knowledge of which event device y...
by gadgetoid
Tue Dec 15, 2015 7:47 pm
Forum: General discussion
Topic: USB device mode on Pi Zero - possible? EDIT: Yes, it is!
Replies: 18
Views: 5390

Re: USB device mode on Pi Zero - possible?

I tried using rpiboot to transfer a baremetal binary I compiled. Doesn't seem to do anything yet, but I'm not well enough versed in baremetal to know if it's the upload process at fault, or just a bunk binary that I'm uploading. I also don't know how big a binary can be at this stage, where it's sto...
by gadgetoid
Tue Dec 01, 2015 4:31 pm
Forum: Troubleshooting
Topic: DISPLAY TFT 2.8 ROBOPEAK - if installed, it uses GPIOs
Replies: 1
Views: 610

Re: DISPLAY TFT 2.8 ROBOPEAK - if installed, it uses GPIOs

Please use the stock Raspbian image, with the standard kernel, and then run our installer which will install *just* the required kernel modules: https://github.com/pimoroni/rp_usbdisplay The RoboPeak/DFRobot USB Display does not use or require any GPIO, but there's no doubt my experimental and now u...
by gadgetoid
Tue Dec 01, 2015 4:14 pm
Forum: Official Foundation Display
Topic: The screen is 'sliding' ( gap between screen and bezel )
Replies: 31
Views: 11985

Re: The screen is 'sliding' ( gap between screen and bezel )

The cause of the touchscreen part coming off is the Pimoroni acrylic case pushing it off by a mm or so, and the glue is actually viscoelastic and eventually gives up. If you add washers under the acrylic for the mounting screws it no longer exerts a force on the touchscreen layer which should preve...
by gadgetoid
Tue Nov 03, 2015 10:03 pm
Forum: Official Foundation Display
Topic: Touch-screen and Pimoroni Case
Replies: 11
Views: 2311

Re: Touch-screen and Pimoroni Case

A new case design is in the works but I don't have a firm ETA yet. It has to take into account the fact that some touch screens are now being supplied assembled- so it needs to be possible to build the case around those, too.

I'll continue to use mine ports up, the way the good lord intended.
by gadgetoid
Mon Nov 02, 2015 3:03 pm
Forum: Official Foundation Display
Topic: Is this thing worth it?
Replies: 9
Views: 1700

Re: Is this thing worth it?

Speaking from the perspective of someone who's seen a good slice of how many units have sold, versus how many have been returned or fallen apart, with the additional bonus of being personally ( and professionally I suppose ) interested in working with the multi-touch aspect of the display: Yes there...
by gadgetoid
Thu Oct 29, 2015 12:16 am
Forum: Official Foundation Display
Topic: Industrial application w/ Touch
Replies: 14
Views: 2391

Re: Industrial application w/ Touch

The RPi display. In retrospect, it shouldn't really be surprising that it works although I did wonder if the camera might have used fewer signal lines and thus resulted in an adapter which didn't support the display. Apparently not, though, it works perfectly. I've not tested it for any significant ...
by gadgetoid
Wed Oct 28, 2015 9:20 pm
Forum: Official Foundation Display
Topic: Industrial application w/ Touch
Replies: 14
Views: 2391

Re: Industrial application w/ Touch

I've used that adaptor ( we sell it at Pimoroni ) and it appears to work fine. I only tested it with whatever HDMI cable I had to hand, though, so as always YMMV!
by gadgetoid
Wed Oct 28, 2015 2:22 pm
Forum: Official Foundation Display
Topic: Pi + Display = ePub Reader
Replies: 3
Views: 3726

Re: Pi + Display = ePub Reader

I've always been a fan of fbreader ( since using it on the Nokia n800 ):

sudo apt-get install fbreader
by gadgetoid
Tue Oct 27, 2015 7:56 pm
Forum: Official Foundation Display
Topic: Touchscreen Display is not working :-(
Replies: 9
Views: 4197

Re: Touchscreen Display is not working :-(

Just to sling another guide into the pot, I've put together ones with closeups of the flat cables: http://forums.pimoroni.com/t/raspberry-pi-official-7-touchscreen-assembly/1132 I've seen enough "not working" touchscreens working fine for me that I wonder if there's something in the software at play...
by gadgetoid
Fri Oct 23, 2015 10:53 am
Forum: Official Foundation Display
Topic: Touch Screen Not working
Replies: 15
Views: 28887

Re: Touch Screen Not working

Just chiming in again to mention that most of the time a non-functional touchscreen is just down to a bad FPC connection from what I've observed. I've tested something like 10 displays returned as faulty, and every single one of them was fine. These were after walking through all the normal update s...

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