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by gadgetoid
Mon Sep 28, 2015 12:57 pm
Forum: Official Foundation Display
Topic: Touch Screen Calibration
Replies: 11
Views: 16829

Re: Touch Screen Calibration

As far as I'm aware there's no calibration process. Have you tried a freshly imaged and updated install of Raspbian to eliminate the software being at fault?
by gadgetoid
Mon Sep 28, 2015 12:55 pm
Forum: Official Foundation Display
Topic: Right and bottom cut-off
Replies: 3
Views: 1344

Re: Right and bottom cut-off

To reach the bottom of such windows you'll need to right-click on them ( assuming you have right click enabled as detailed in this thread: https://www.raspberrypi.org/forums/viewtopic.php?f=108&t=121602 .. or a mouse! ) and choose "Move" You can then use the arrow keys to move the top of the window ...
by gadgetoid
Thu Sep 24, 2015 12:59 pm
Forum: Official Foundation Display
Topic: Power display from Pi 2 ?
Replies: 8
Views: 2186

Re: Power display from Pi 2 ?

Just a quick note to say I tried a similar set up- powering the display from the Pi- and found that it would not work. I'm pretty sure any setup where the display isn't powered up before ( or at the same instant as ) the Pi will not work due to whatever display initialization sequence there is at bo...
by gadgetoid
Tue Sep 22, 2015 4:30 pm
Forum: Official Foundation Display
Topic: STICKY: Official Touchscreen Display FAQ
Replies: 51
Views: 76745

Re: Official Touchscreen Display FAQ

https://www.raspberrypi.org/documentation/hardware/display/Readme.md Contains the first stab at information... You can create github issues to ask for specific information items Gordon Raised: https://github.com/raspberrypi/documentation/issues/255 I've even collated most, if not all, of the reques...
by gadgetoid
Tue Sep 22, 2015 4:11 pm
Forum: Official Foundation Display
Topic: Kivy touch examples?
Replies: 4
Views: 7090

Re: Kivy touch examples?

Use the guide here: https://github.com/mrichardson23/rpi-kivy-screen The important steps are: To enable touch, you'll need to make a modification to the Kivy configuration file: pi@raspberrypi ~/kivy $ nano ~/.kivy/config.ini 14.Go into the [input] section, remove the lines that are in there and put...
by gadgetoid
Tue Sep 22, 2015 3:59 pm
Forum: Official Foundation Display
Topic: Official RPI Touchscreen - is it upside down in the frame?
Replies: 9
Views: 63395

Re: Official RPI Touchscreen - is it upside down in the fram

HDMI, power and 3.5mm audio cables wont route out tidily and wont be particularly accessible with the Pi and LCD in its "better viewing angle" rotation. It's a trade-off.

Right now, stay calm and "lcd_rotate=2". We've got our top boffins working on it.
by gadgetoid
Tue Sep 22, 2015 3:50 pm
Forum: Official Foundation Display
Topic: Where to find a cable?
Replies: 9
Views: 2033

Re: Where to find a cable?

We're testing some split cables which work really well. I saw under-voltage warnings when using a USB cable from the USB port on the LCD driver board to the Pi's power input, so I've been somewhat put off that option. I have one LCD set up with jump wires soldered directly onto the underside of the ...
by gadgetoid
Tue Sep 22, 2015 3:46 pm
Forum: Official Foundation Display
Topic: LCD Cable
Replies: 2
Views: 1395

Re: LCD Cable

I tried the Camera extension kit successfully ( https://shop.pimoroni.com/products/pi-c ... -extension ), which allows you to use an HDMI cable between the screen and the Pi. It's *not* officially supported in any way and is definitely not HDMI compatible though!
by gadgetoid
Wed Sep 16, 2015 11:32 am
Forum: Official Foundation Display
Topic: Longer DSI ribbon
Replies: 8
Views: 4330

Re: Longer DSI ribbon

I did. Of course the beauty of trashing any EMC compliance ( this HDMI cable is almost as thick as my arm, I suspect it'll be okay! ) is that I can now broadcast my Pi screen to every LCD in the building!
by gadgetoid
Wed Sep 16, 2015 11:31 am
Forum: Official Foundation Display
Topic: Another touch screen question
Replies: 14
Views: 3819

Re: Another touch screen question

I've had to deal first hand with the fallout of encouraging users to run rpi-update, particularly because it, and anyone advocating it, makes no effort to explain that you're installing untested, unreleased, bleeding-edge firmware which could have any number of breaking changes or incompatibilities....
by gadgetoid
Wed Sep 16, 2015 10:37 am
Forum: Official Foundation Display
Topic: Longer DSI ribbon
Replies: 8
Views: 4330

Re: Longer DSI ribbon

I'll raise you 1.5 meters!

Image
by gadgetoid
Tue Sep 15, 2015 9:22 am
Forum: Official Foundation Display
Topic: Non square pixels?
Replies: 20
Views: 15796

Re: Non square pixels?

I drew a 200x200 pixel square in PyGame and found the same thing. Looks like you're correct- although as you demonstrate the dimension and resolution of the screen already agree with your findings. I measured my square with calipers to approximately 38mm wide and 35mm tall. Although I can clearly se...
by gadgetoid
Mon Aug 24, 2015 3:51 pm
Forum: Advanced users
Topic: Linux kernel is now 4.1
Replies: 31
Views: 21925

Re: Linux kernel is now 4.1

You're a flippin' legend. That worked a treat. I didn't understand the implications of using /dev/vcio beforehand, but it seems to work. I'll compile the Python bindings and see how it fares. Relevant commit here, a little messy at the moment since I commented out a bunch of seemingly irrelevant cal...
by gadgetoid
Mon Aug 24, 2015 3:01 pm
Forum: Advanced users
Topic: Linux kernel is now 4.1
Replies: 31
Views: 21925

Re: Linux kernel is now 4.1

@joan I don't know if it's related, but I'm also now having woes with the Mailbox and the slightly funky way it's used to drive ws281x pixels on the Raspberry Pi- the ws281x library seems to have conked out. It can apparently create a device at /tmp/mailbox-XXXX but not read it. https://github.com/j...
by gadgetoid
Fri Jul 24, 2015 5:14 pm
Forum: General discussion
Topic: skywriter hat problems
Replies: 4
Views: 1202

Re: skywriter hat problems

Sounds like a job for Pygame - for air wheel, as an example, you could display a picture of a dial and use the rotate transform to turn it around when you perform the air wheel gesture. I'm not big on Pygame, so I'm probably not the best guy to be helping you out, but I can try throwing together an ...
by gadgetoid
Fri Jul 24, 2015 4:00 pm
Forum: Windows 10 for IoT
Topic: Any experiences with Adafruit 16-channel servo driver?
Replies: 12
Views: 3127

Re: Any experiences with Adafruit 16-channel servo driver?

@benarrross at the very least I'd love to see the code. I'd like to try supporting some of our add-on boards in C#, but I'm tremendously out of practice with the Windows/DotNet way despite previously building and maintaining systems in C# ( and VB before that, ASP before that.. etc *shudder* ). One ...
by gadgetoid
Fri Jul 24, 2015 9:16 am
Forum: General discussion
Topic: skywriter hat problems
Replies: 4
Views: 1202

Re: skywriter hat problems

no pictures of my gestures are visible at the desktop interface, there is only a lot of code of positions running as text down the console. That's exactly what we'd expect the "test.py" file to do- it definitely doesn't make any pictures of gestures appear on your desktop! But that's not impossible...
by gadgetoid
Mon Jul 06, 2015 8:03 am
Forum: HATs and other add-ons
Topic: Attaching sensors to Explorer HAT Pro
Replies: 1
Views: 1736

Re: Attaching sensors to Explorer HAT Pro

I'm actually in the process of evaluating ( or at least waiting for a part to turn up to evaluate ) some analog distance sensors for the Explorer HAT Pro- the beauty of analog is that the distance sensor just gives you a voltage output which translates to distance. This means you don't have to worry...
by gadgetoid
Tue Feb 10, 2015 8:54 pm
Forum: Python
Topic: WiringPi2 on Pi2?
Replies: 8
Views: 1542

Re: WiringPi2 on Pi2?

I haven't pushed it up to pip yet, as it's very, very untested. That said, there shouldn't be anything wrong with it!
by gadgetoid
Tue Feb 10, 2015 10:16 am
Forum: Troubleshooting
Topic: Pi2 B and Pi-Pan (ServoBlaster)
Replies: 69
Views: 27351

Re: Pi2 B and Pi-Pan (ServoBlaster)

I'm still in the process of investigating why Pi WS2812/NeoPixel driver code doesn't work on the Pi 2- the problems I'm seeing look similar to problems that occur when the PWM0 hardware is being used by the audio subsystem- however it's random garbage, and as Paul rightfully said to me yesterday: "Y...
by gadgetoid
Mon Feb 09, 2015 2:06 pm
Forum: Troubleshooting
Topic: Pi2 B and Pi-Pan (ServoBlaster)
Replies: 69
Views: 27351

Re: Pi2 B and Pi-Pan (ServoBlaster)

I must admit, I'm here lurking in the sidelines hoping the resolution to this problem is what I need to get Unicorn HAT up and running on the Pi 2 and wondering if it's relevant to this line of code here: https://github.com/pimoroni/UnicornHat/blob/master/python/ws2812/lib/ws2812-RPi.c#L576 There's ...
by gadgetoid
Wed Feb 04, 2015 3:34 pm
Forum: General discussion
Topic: The Raspberry Pi 2 Q&A thread
Replies: 442
Views: 138301

Re: The Raspberry Pi 2 Q&A thread

What is the meaning of the Revision shown in /proc/cpuinfo? For past models the final four hex digits were the revision number as indicated at http://elinux.org/RPi_HardwareHistory#Board_Revision_History but for the 2B it seems there is now more to it? It's a bitfield that contains more information...
by gadgetoid
Wed Feb 04, 2015 3:30 pm
Forum: General discussion
Topic: The Raspberry Pi 2 Q&A thread
Replies: 442
Views: 138301

Re: The Raspberry Pi 2 Q&A thread

I'm also seeing timing issues on the Pi 2, I've boiled them down to this example which takes 20sec! on a Pi 2 This affects usleep, and subsequently Python's sleep command, which makes code like our Display-o-Tron 3000 examples run in sloooow moootion. #include <unistd.h> int main() { int x = 0; for(...
by gadgetoid
Fri Jan 30, 2015 8:49 pm
Forum: Python
Topic: Read this if you use Python Spidev
Replies: 20
Views: 21115

Re: Read this if you use Python Spidev

In a terminal try:

Code: Select all

git clone https://github.com/Gadgetoid/py-spidev
cd py-spidev
sudo make install
by gadgetoid
Fri Jan 30, 2015 2:52 pm
Forum: Python
Topic: Read this if you use Python Spidev
Replies: 20
Views: 21115

Re: Read this if you use Python Spidev

I have started compiling an updated and patched version of py-spidev in my own fork here: https://github.com/Gadgetoid/py-spidev I'd love feedback from users of this library, whether or not you're using the new kernel, particularly those with read/write SPI devices since I've not tested any of the r...

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