Search found 936 matches
- Mon Aug 27, 2012 3:02 pm
- Forum: Beginners
- Topic: Not user friendly
- Replies: 27
- Views: 6314
Re: Not user friendly
If you think that Linux is stealing Control of the System from you than you have to learn what Microsoft is trying to do with things like "TCPA" and "Secure Boot". They want to completely draw your power to control the computer from you to them. What a totally facetious, moronic argument that. It i...
- Mon Aug 27, 2012 11:52 am
- Forum: Beginners
- Topic: Sudo for the desktop
- Replies: 18
- Views: 24590
Re: Sudo for the desktop
It is like passwords, they don't always have the same number of *s as letters typedBurngate wrote:I can't think of a verb with five letters that would fit there. Apart from "quote" which doesn't make sense.***** Nanny.
An adjective that works is "silly"
- Sun Aug 26, 2012 9:05 pm
- Forum: Python
- Topic: Python under the hood book?
- Replies: 3
- Views: 1175
Re: Python under the hood book?
Thanks Guys, that is enough bed time reading to last me the next few months. :D Writing an extension in C would not be my first choice to wrap a C library. It is just that I need full access to the ARM peripherals on the Pi. I can do this in C but these are not available in the existing Python modul...
- Sun Aug 26, 2012 8:46 pm
- Forum: Beginners
- Topic: Not user friendly
- Replies: 27
- Views: 6314
Re: Not user friendly
Thinking a bit more about it Linux is like a classic Star Trek plot. The one where they are stranded on a paradise planet with all the comforts, technology and knowledge they could wish for, all they have to do to achieve this nirvana is to give up their freedom. Given that a lot of Linux geeks are ...
- Sun Aug 26, 2012 8:33 pm
- Forum: Beginners
- Topic: Not user friendly
- Replies: 27
- Views: 6314
Re: Not user friendly
Yes, Linux appears to be designed to annoy. You can't do anything worthwhile without declaiming 'sudo' at regular intervals. The thing is designed for a large organisation, an enterprise with one large facility tended by arch-priests and with mere users consigned to the peripheral. Nobody uses thei...
- Sun Aug 26, 2012 8:23 pm
- Forum: Beginners
- Topic: Sudo for the desktop
- Replies: 18
- Views: 24590
Re: Sudo for the desktop
OK thanks I will give that a go in the morning.
- Sun Aug 26, 2012 8:06 pm
- Forum: Beginners
- Topic: Sudo for the desktop
- Replies: 18
- Views: 24590
Re: Sudo for the desktop
Thanks.
I know what I want to do and as usual Linux is stopping me.
What a nanny operating system.
I know what I want to do and as usual Linux is stopping me.
What a nanny operating system.
- Sun Aug 26, 2012 3:08 pm
- Forum: Beginners
- Topic: Sudo for the desktop
- Replies: 18
- Views: 24590
Re: Sudo for the desktop
Do you mean drag and drop in the sense "move"? Yes That is not a task I can easily imagine needing root privileges for. Yes suppose you want to put something in a directory that is owned by root, like putting a customised wallpaper image in a directory or ejecting an SD card as a user that was firs...
- Sun Aug 26, 2012 2:34 pm
- Forum: Python
- Topic: Python under the hood book?
- Replies: 3
- Views: 1175
Python under the hood book?
Is there a good book or downloadable PDF telling you about how to manage Python. There are plenty telling you how to actually write code but that is only half the story. I want to be able to understand what build and setup does, how to create wrappers to C code, not just type in these magic words bu...
- Sun Aug 26, 2012 2:13 pm
- Forum: Beginners
- Topic: Sudo for the desktop
- Replies: 18
- Views: 24590
Sudo for the desktop
I know I can log on as root but is there a way of doing a drag and drop desktop operation temporarily as root when I log on as Pi?
Having googled this I see there are some flavors of Linux you can do this with. Is there any way of doing this with Raspbain?
Having googled this I see there are some flavors of Linux you can do this with. Is there any way of doing this with Raspbain?
- Sat Aug 25, 2012 9:16 pm
- Forum: RISCOS
- Topic: RISC OS on Raspberry Pi
- Replies: 356
- Views: 134572
Re: RISC OS on Raspberry Pi
You can always bypass the poly fuses with a wire link connected back to the main board's input poly fuse.thradtke wrote: Not an option to me, as my keyboard sacrifices 100mW for its LEDs alone
- Sat Aug 25, 2012 9:10 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: Raspberry Pi, Chua Circuit and Chaos
- Replies: 2
- Views: 1181
Re: Raspberry Pi, Chua Circuit and Chaos
Thanks for posting that. Most impressive scope traces, I have bookmarked the page and might try an do something with this one day.
Have you tried listening to the waveforms?
Have you tried listening to the waveforms?
- Sat Aug 25, 2012 8:39 pm
- Forum: Python
- Topic: Grumpy Mike's instructions for PCF8591
- Replies: 50
- Views: 28134
Re: Grumpy Mike's instructions for PCF8591
That error message is telling you there is no I2C device at the address you used.
What have you done with the external address pins 5, 6 & 7 on the PCF8591? In order to respond to address 0x48 these pins have to be connected to ground.
What have you done with the external address pins 5, 6 & 7 on the PCF8591? In order to respond to address 0x48 these pins have to be connected to ground.
- Fri Aug 24, 2012 4:00 pm
- Forum: RISCOS
- Topic: RISC OS on Raspberry Pi
- Replies: 356
- Views: 134572
Re: RISC OS on Raspberry Pi
On the Linux platforms this keyboard problem is caused by the USB driver dropping packages. I am assured by several people it is being worked on. So it might be the same driver for RISC OS. The thing was that the keyboard I used didn't show repeat keys on the last two Linux distros. It was my Apple ...
- Fri Aug 24, 2012 3:52 pm
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
No platform remains "stable" in the areas of active development, and that is exactly what you are looking at. "Linux", which you are criticising, is a stable OS. So it is stable and not stable simultaneously, rather like Schrodinger's cat. try getting bugs fixed by Microsoft - So Mussolini was not ...
- Fri Aug 24, 2012 11:34 am
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
@Grumpy Mike: Just do the same search with „Windows” instead of „Linux”. Maybe it is a typical *user* reaction to ignore errors that don't seem to impact the result, because users can't do anything about it anyway. It may be, and my googling was not meant to be exclusive research. But I have seen m...
- Fri Aug 24, 2012 10:22 am
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
I agree it should not be but in my experience it is. I just googled:-BlackJack wrote:@Grumpy Mike: I don't think ignoring errors is or should be a typical Linux user reaction.
Linux "ignore the error"
and got 567,000 hits!
- Fri Aug 24, 2012 8:27 am
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
For Raspbian (wheezy) I used the instructions on this site. http://www.sirmc.net/view/9001/ There was one error package init file 'WiringPi/__init__.py' not found (or not a regular file) It was not a fatal error, the installation appeared to complete successfully. That said I have no means to actua...
- Thu Aug 23, 2012 1:10 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: how to configure GPIO sink current
- Replies: 4
- Views: 4746
Re: how to configure GPIO sink current
You can get this distance if you use an logic level signal from 0 to 12V, then at the Pi end you have it going into the base of a transistor through a resistor and then connect the collector to the GPIO pin with the internal pull-ups enabled and the emitter to ground. Also a resistor from base to gr...
- Wed Aug 22, 2012 7:33 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: how to configure GPIO sink current
- Replies: 4
- Views: 4746
Re: how to configure GPIO sink current
I've read at several locations that the RPI GPIO sink current is configurable from 2 to 16mA No that is not quite right. It is the drive current and hence the impedance of the output that is configurable. BUT this does not limit the current to a safe value or indeed a value equal to the drive curre...
- Wed Aug 22, 2012 11:26 am
- Forum: Python
- Topic: Motors and transistors...
- Replies: 30
- Views: 5830
Re: Motors and transistors...
Anyone happen to know the coefficient of friction of lino? By itself this is useless you also need to know the materials your wheels are made of and then calculate the friction between the two. However that will only give you the force you can apply before the wheel slips, not how much power you ne...
- Wed Aug 22, 2012 11:19 am
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
You might want to ditch your local files and grab the repo again, as I'm not sure what git commands would get it into the right state. That is what I did yesterday. I deleted all the files and went with the instructions on http://blogs.foomatic.org/blink-away-the-tears/ Have you checked this to see...
- Wed Aug 22, 2012 11:10 am
- Forum: Python
- Topic: What sort of WAV file for pygame?
- Replies: 3
- Views: 1672
Re: What sort of WAV file for pygame?
Thanks that worked a treat. 
I was using Audacity and matched all the parameters on the playing files, including no compression, little endian 16 bits without success.
I was using Audacity and matched all the parameters on the playing files, including no compression, little endian 16 bits without success.
- Tue Aug 21, 2012 5:59 pm
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
Yes I am using Wiring Pi in C but I need to be able to produce stuff in Python.
- Tue Aug 21, 2012 5:41 pm
- Forum: Python
- Topic: WiringPython - WiringPi for Python
- Replies: 205
- Views: 72609
Re: WiringPython - WiringPi for Python
Yes I looked at them with a scope.dimonic wrote:I assume you have attached something (like an LED) to actually determine if it is working as advertised?