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by tjaap
Fri Dec 04, 2015 3:44 pm
Forum: Python
Topic: RPi.GPIO sudo versus sudo-less performance differences
Replies: 6
Views: 3232

Re: RPi.GPIO sudo versus sudo-less performance differences

I had the same problem, but after spending a few hours (of course) on trying different workarounds, I discovered that it was not actually the GPIO module but entirely different problems in my code that prevented the script to execute correctly from rc.local. In my case the permissions on my scripts ...
by tjaap
Wed Sep 23, 2015 10:36 am
Forum: Raspberry Pi OS
Topic: Kweb Suite (Minimal Kiosk Browser, omxplayerGUI)
Replies: 1589
Views: 793214

Re: Minimal Kiosk Browser

Thanks gkreidl!
by tjaap
Wed Sep 23, 2015 10:09 am
Forum: Raspberry Pi OS
Topic: Kweb Suite (Minimal Kiosk Browser, omxplayerGUI)
Replies: 1589
Views: 793214

Re: Minimal Kiosk Browser

You must enable full zoom (Z option)! Doesn't seem to solve it, but that's probably because the plus commands will be fired before the map is loaded. I am going to try to fix it by doing the meta refresh a couple of seconds later. Otherwise the 'remote control' method is probably the best solution ...
by tjaap
Tue Sep 22, 2015 1:41 pm
Forum: Raspberry Pi OS
Topic: Kweb Suite (Minimal Kiosk Browser, omxplayerGUI)
Replies: 1589
Views: 793214

Re: Minimal Kiosk Browser

gkreidl wrote:I don't understand why it needs a mouse click. It works for me with the redirection page.
Really? When I tried it, only the text became larger, so it did not zoom the map to a smaller region. But I will try again, thanks.
by tjaap
Tue Sep 22, 2015 1:17 pm
Forum: Raspberry Pi OS
Topic: Kweb Suite (Minimal Kiosk Browser, omxplayerGUI)
Replies: 1589
Views: 793214

Re: Minimal Kiosk Browser

That's not a crash at all; if the kiosk script finishes, the X-server is closed (and all programs running from X). Of course! Thank you for the explanation. And also for kweb of course, it works better as a kiosk than Iceweasel, Epiphany and Chromium. This is what I made with it: https://twitter.co...
by tjaap
Tue Sep 22, 2015 1:40 am
Forum: Raspberry Pi OS
Topic: Kweb Suite (Minimal Kiosk Browser, omxplayerGUI)
Replies: 1589
Views: 793214

Re: Minimal Kiosk Browser

What I am trying to do, is load a webpage with a map and then do a few xdotools to zoom in. The loading of the map (http://www.buienradar.nl/panorama) works fine. But for the ./kiosk script to go on to do the xdotools, I need to add an ampersand to kweb line in my kiosk script, just like the documen...
by tjaap
Mon Nov 11, 2013 12:49 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Lcd-display shows up with i2cdetect, but I2C not working
Replies: 20
Views: 6172

Re: Lcd-display shows up with i2cdetect, but I2C not working

Thanks Joan. Sounds plausible. Will try that, thanks!
by tjaap
Mon Nov 11, 2013 10:42 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Lcd-display shows up with i2cdetect, but I2C not working
Replies: 20
Views: 6172

Re: Lcd-display shows up with i2cdetect, but I2C not working

Nope, no clue. I read something about frequencies of the I2C pulses and bus speeds and I figured maybe the display and the Pi are out of sync somehow. But that sort of thing is really beyond me I'm afraid. Please do let me know if you figure it out!
by tjaap
Mon Nov 11, 2013 9:51 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Lcd-display shows up with i2cdetect, but I2C not working
Replies: 20
Views: 6172

Re: Lcd-display shows up with i2cdetect, but I2C not working

Hi Shaun,

I wish I could say I got it to work, but I didn't. It remained a mystery. Instead, I bought a simple 7-segment display to connect to the Pi.

One thing I learnt: next time I want to order some peripheral, I first will make sure someone else has got it working with the Pi.

Jaap
by tjaap
Sun Jul 21, 2013 11:06 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Lcd-display shows up with i2cdetect, but I2C not working
Replies: 20
Views: 6172

Lcd-display shows up with i2cdetect, but I2C not working

Hi, I would like to connect this LCD-display to my Pi (model B), but had no luck so far: https://iprototype.nl/products/components/led-lcd/lcd20x4-I2C-BL It has this PCA8574 chip backpack by DFrobot for the I2C-communication on board: http://www.dfrobot.com/index.php?route=product/product&produc...

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