Go to advanced search

by with ice cream
Fri Aug 09, 2013 8:08 pm
Forum: Other projects
Topic: Today's Agenda Web View (CalDAV/iCal)?
Replies: 0
Views: 1091

Today's Agenda Web View (CalDAV/iCal)?

I am looking for a solution to display today's events in a browser window or an application. I am running an ownCloud server somewhere else and would like to grab and display today's events (via CalDAV or iCal). Regrettably ownCloud's calendar web view does not have a Today view, therefore I am look...
by with ice cream
Fri Aug 09, 2013 3:36 pm
Forum: Python
Topic: Tutorial: Elro remote power switch without root
Replies: 9
Views: 29806

Re: Tutorial: Elro remote power switch without root

OK. I solved it. Here's what I did. I increased the repeat interval and decreased the pulse length: ... repeat = 24 # Number of transmissions pulselength = 60 # microseconds ... I'm not sure if theses are the ideal values, but my switches seem to react about three out of four times. I'm still lookin...
by with ice cream
Thu Aug 08, 2013 12:02 pm
Forum: Python
Topic: Tutorial: Elro remote power switch without root
Replies: 9
Views: 29806

Re: Tutorial: Elro remote power switch without root

I don't get it to work. I made sure the sender works by successfully experimenting with an Arduino, but it doesn't seem to do anything from my Raspberry Pi. The pin (in my case GPIO 27 (P1-13)) is set up and properly opened. The dip switch settings are properly entered. I tried all kinds of alternat...
by with ice cream
Sun Jul 07, 2013 10:49 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Decoding 433.92 MHz temperature sensor chatter
Replies: 4
Views: 9663

Re: Decoding 433.92 MHz temperature sensor chatter

Thank you for your feedback. I know it is feasible and it has been done (e.g. with arduinos), just apparently not with a Raspberry Pi. People successfully work with signals from one particular weather station (http://www.susa.net/wordpress/2012/08/raspberry-pi-reading-wh1081-weather-sensors-using-an...
by with ice cream
Fri Jul 05, 2013 12:30 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Decoding 433.92 MHz temperature sensor chatter
Replies: 4
Views: 9663

Decoding 433.92 MHz temperature sensor chatter

I am planning to use an inexpensive 433.92 receiver board to catch (and decode) wireless temperature sensors' signals. I am at the very beginning and according to my research while several solutions to send 433.92 Mhz signals exist there seems to be nothing to work with the kind of data I am looking...
by with ice cream
Mon May 27, 2013 6:59 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Infrared receiver, destruction possible due to pinout error?
Replies: 6
Views: 2455

Re: Infrared receiver, destruction possible due to pinout er

Update: I followed the pinout from the spec sheet of a similar looking module and it works. I am amazed that something can be hooked up directly without the need for resistors or anything else. I wonder if I can connect a photodiode in a similar fashion. I'll hunt around.
by with ice cream
Sun May 26, 2013 10:09 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Infrared receiver, destruction possible due to pinout error?
Replies: 6
Views: 2455

Re: Infrared receiver, destruction possible due to pinout er

joan wrote:Impossible to say, that would depend on the module. Mine has an internal 23K resistor between the +ve pin and the data and ground pins which seems to have protected it from damage.
If that's the only risk, the IR module going up in flames, then I can live with that.
by with ice cream
Sun May 26, 2013 9:36 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Infrared receiver, destruction possible due to pinout error?
Replies: 6
Views: 2455

Re: Infrared receiver, destruction possible due to pinout er

The pin out seems fairly standard. Pin 1 data, pin 2 ground, pin 3 +ve. I can't see you damaging the Pi or the receiver. I've connected a similar receiver back to front a few times and it is still working (did get very hot once). Thanks for the quick reply. Pin 1 seems to be data in all cases but w...
by with ice cream
Sun May 26, 2013 8:47 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Infrared receiver, destruction possible due to pinout error?
Replies: 6
Views: 2455

Infrared receiver, destruction possible due to pinout error?

Absolute electronics beginner here, please bear with me. I bought an IR receiver component yet forgot to ask for a spec sheet. The receipt just lists it as TSOP, it could be a TSOP 4838. On the back I can see the digits "417". I am aware different pinouts are possible. I would like to do something l...
by with ice cream
Tue Apr 23, 2013 7:52 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

A new kernel with an update to the USB driver is available via rpi-update. No improvement for me. lcd4linux loads a splash screen on start (a black background). This big chunk of data seems to be too much. I still get the error "bulk write: Resource temporarily unavailable" and the process quits. T...
by with ice cream
Thu Apr 11, 2013 11:53 am
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

Update: the removal of mtd-probe does not improve the situation.
by with ice cream
Wed Apr 10, 2013 6:51 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

lcd4linux user here. I had already given up and invested in a composite screen as a status display. Today I was adventurous and did an update (Linux berry 3.6.11+ #403 PREEMPT Tue Apr 2 22:48:13 BST 2013). The first reboot after the update failed and I had to replace start.elf manually. For a while ...
by with ice cream
Fri Mar 15, 2013 12:43 pm
Forum: General discussion
Topic: Photo Frame-LCD Monitor Won't Display Images After Sleeping
Replies: 5
Views: 1430

Re: Photo Frame-LCD Monitor Won't Display Images After Sleep

Regrettably this doesn't seem to work. Restarting the desktop manager is what does:

Code: Select all

/usr/bin/tvservice -c "PAL 16:9"
sudo /etc/init.d/lightdm restart
by with ice cream
Wed Mar 13, 2013 5:11 pm
Forum: General discussion
Topic: Photo Frame-LCD Monitor Won't Display Images After Sleeping
Replies: 5
Views: 1430

Re: Photo Frame-LCD Monitor Won't Display Images After Sleep

I seem to be in a similar situation. My display shows an X session and I can turn it off using tvservice -o. tvservice -c "PAL 16:9" activates the screen, but nothing gets shown.
by with ice cream
Sun Mar 10, 2013 7:20 pm
Forum: Other projects
Topic: Event/Notification Display?
Replies: 5
Views: 1123

Re: Event/Notification Display?

Danke! By now I have successfully implemented a long polling jquery-based page. This put me on the proper track. I may study the source quoted to see what I can improve. Currently I am struggling to populate an array with the data returned but I am confident that I will get this sorted out as well.
by with ice cream
Sun Mar 10, 2013 10:01 am
Forum: Other projects
Topic: Event/Notification Display?
Replies: 5
Views: 1123

Re: Event/Notification Display?

Thanks for the response. Frankly, I am so at a loss that I would need more than a pointer to the technology. A snippet of code might help. I am inclined to admit defeat, recognizing that approaching it with a web-based solution is beyond what have the skills for. I am currently thinking about having...
by with ice cream
Sat Mar 09, 2013 9:06 am
Forum: Other projects
Topic: Event/Notification Display?
Replies: 5
Views: 1123

Event/Notification Display?

Currently I am using a LCD photo keychain with lcd4linux as a miniature display. It displays weather and temperature information, current title from MPD and a few more things. The lcd4linux setup watches a few files and changes the info displayed when the files change (eg. one file gets updated with...
by with ice cream
Wed Feb 20, 2013 9:10 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

I really wish Gordon or Liz would give us an update. I had to revert back from a recent attempt with a current firmware when I my Pi got stuck because of errors related to unclaimed usb devices.
by with ice cream
Sun Jan 27, 2013 7:31 am
Forum: General discussion
Topic: USB development - where, when & who?
Replies: 12
Views: 1516

Re: USB development - where, when & who?

gsh wrote:Have been working full time on the USB issues over the last couple of weeks and have got much further with my fixes...
That's good to hear, Gordon. Please post this to Liz's usb redux thread and spread the hope. Or, even better, close this thread and point to the other one.
by with ice cream
Sun Jan 27, 2013 7:22 am
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

Using 3.6.11+ #362 PREEMPT Tue Jan 22 14:52:21 GMT 2013 and my 320 x 240 LCD display still crashes when bigger chunks of data get pushed to it (eg. when loading the lcd4linux splash screen or bigger images). My 128 x 128 display woks. The error message says "bulk write: Resource temporarily unavaila...
by with ice cream
Mon Jan 07, 2013 8:43 am
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

Just to chime in, my problems with a crashing LCD usb photo frame remain even with the latest (Jan 1) firmware/kernel.
by with ice cream
Wed Dec 19, 2012 7:45 am
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

To recap what I am observing (in layperson's terms): pushing large chunks of data via USB makes causes problems. In my environment this means webcams and digital picture frames. My DPF runs fine unless I load a bigger image (e.g. as background or the lcd4linux splash screen). My webcam is unusable s...
by with ice cream
Mon Dec 10, 2012 10:54 am
Forum: Media centres
Topic: LCD and Shairport
Replies: 3
Views: 2319

Re: LCD and Shairport

Ive set up my Pi with shairport running as a service, streaming music from my phone to the Pi. Im looking at adding a small LCD to the Pi to show the song that's playing and the artist.(...) Were you successful? I'm using lcd4linux (with mixed results due to USB probles related to the data rate). l...
by with ice cream
Sat Dec 01, 2012 1:01 pm
Forum: Graphics, sound and multimedia
Topic: USB Cams and Motion on Debian
Replies: 78
Views: 83270

Re: USB Cams and Motion on Debian

nomad, Keep an eye on this thread (USB redux) . It might be related to a general USB issue. I tried lower resolutions with my Logitech Fusion but motion would always change to a higher one: [1] Test palette YUYV (352x288) [1] Adjusting resolution from 352x288 to 1024x576. And then it would time-out....
by with ice cream
Sat Dec 01, 2012 12:42 pm
Forum: Troubleshooting
Topic: USB redux
Replies: 514
Views: 196758

Re: USB redux

The Pi's kernel is on Github [...] To build it yourself, you really need an additional computer running linux. It takes days to compile the kernel on an r-pi.[...] Thank you for clarifying this, but I guess this is too much for me. Nevertheless, I would like to contribute what I can to get this fix...

Go to advanced search