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by Rene_is_I
Thu May 09, 2013 8:10 pm
Forum: Off topic discussion
Topic: Raspberry Pi Vs. Alternatives
Replies: 62
Views: 44959

Re: Raspberry Pi Vs. Alternatives

ah - I found the link and inserted it in my previous at the exact same time you did in yours! does look impressive, but how on earth does one use them - the established community is defiantely a + for the Pi.... but competition is snapping at its heals(!) Exactly why I would not buy one, certainly ...
by Rene_is_I
Thu May 09, 2013 7:18 pm
Forum: Off topic discussion
Topic: Raspberry Pi Vs. Alternatives
Replies: 62
Views: 44959

Re: Raspberry Pi Vs. Alternatives

Had a look at the mars board schematic and I'm pretty impressed with it's expansion capabilities:
LCD, TWI, CSI, SPI, PS2, SDI, IRDA, GPIO, VGA, Composite Video, UART, ADC, Line In and JTAG.

Still don't know if I'd get one though.
by Rene_is_I
Thu May 09, 2013 6:49 pm
Forum: Off topic discussion
Topic: Raspberry Pi Vs. Alternatives
Replies: 62
Views: 44959

Re: Raspberry Pi Vs. Alternatives

An interesting board, but with only 180mhz, it's fairly anemic for $89. It certainly ain't to the spec of the Pi (and others) since it's meant to be run headless so although it will be no rocket, many of the overheads associated with video output will not be an issue. Although having said that, wit...
by Rene_is_I
Thu May 09, 2013 4:48 pm
Forum: Off topic discussion
Topic: Raspberry Pi Vs. Alternatives
Replies: 62
Views: 44959

Re: Raspberry Pi Vs. Alternatives

Depending on your exact requirements, here is another possibility: http://www.elektor.com/products/kits-modules/modules/120026-91-embedded-linux-made-easy.35.2135310.lynkx I have also done extensive research on all these little computers and came to the same conclusion that the Pi is best. It can do...
by Rene_is_I
Thu May 09, 2013 7:57 am
Forum: Off topic discussion
Topic: Raspberry Pi Vs. Alternatives
Replies: 62
Views: 44959

Re: Raspberry Pi Vs. Alternatives

The two advantages the Pi has is the number of distros available for it and it's huge user base.
by Rene_is_I
Tue May 07, 2013 1:42 pm
Forum: Off topic discussion
Topic: Pi Character
Replies: 84
Views: 20049

Re: Pi Character

There could even be a whole range of characters, what's a story without the good and bad guys? One bad guy immediately comes to mind.....The Monster From Redmond. :D The story goes something like this: The Protectors of Pi have to defend our CPUs from the evil bot-hydras controlled by The Monster of...
by Rene_is_I
Tue May 07, 2013 8:23 am
Forum: General discussion
Topic: Red Led Flashing
Replies: 8
Views: 2115

Re: Red Led Flashing

Perhaps try a different SD card, the one you are using could be on the blink.
by Rene_is_I
Tue May 07, 2013 7:10 am
Forum: Off topic discussion
Topic: Pi Character
Replies: 84
Views: 20049

Re: Pi Character

@Kokoro

Superb work.

You should make a 10 cell/box/frame (or what ever it's called) story and submit it to the MagPi for inclusion in their next issue.
Bet you it will become a regular feature.
by Rene_is_I
Sat May 04, 2013 11:11 pm
Forum: General discussion
Topic: Dos on R-Pi with working Serial/Parallel communication.
Replies: 6
Views: 8136

Re: Dos on R-Pi with working Serial/Parallel communication.

I will be very surprised if anyone gets DOS to run natively on the Pi for these reasons: 1) DOS makes extensive use of BIOS interrupts which do not exist on the Pi 2) It was written for X86 based platforms where as the Pi is ARM based. 3) DOS expects to find certain peripherals at certain addresses/...
by Rene_is_I
Sat May 04, 2013 1:04 pm
Forum: Other projects
Topic: Reading MagPi on a Kindle
Replies: 3
Views: 3018

Re: Reading MagPi on a Kindle

I'm not sure as to what the guys over at MagPi use to create the mag and the eventual pdf, but is there no way to perhaps also create an ePub version alongside the pdf? I know that there are various ebook formats but ePub seems to be the most popular one. This would result in smaller downloads and w...
by Rene_is_I
Fri May 03, 2013 6:07 pm
Forum: Off topic discussion
Topic: Multiple Componenets Plugged Into a Single Pin?
Replies: 8
Views: 2070

Re: Multiple Componenets Plugged Into a Single Pin?

It depends on what Pin 1 (as per your example) is actually being used for. Let's say for example you have your LCD and RTC and both use a simple 4 wire serial interface consisting of DATAin, DATAout, CLOCK and CS (chip select) then usually these devices will not react to any data/commands unless the...
by Rene_is_I
Fri May 03, 2013 10:26 am
Forum: Off topic discussion
Topic: My rant on Pi's
Replies: 14
Views: 4472

Re: My rant on Pi's

@SimonSmall

+1
That is one of the nicest, noobie friendly posts I have read in a long time.
by Rene_is_I
Thu May 02, 2013 9:07 am
Forum: Off topic discussion
Topic: Multiple Componenets Plugged Into a Single Pin?
Replies: 8
Views: 2070

Re: Multiple Componenets Plugged Into a Single Pin?

Perhaps you mean components as in digital gates and transistors? If so, you are referring to fan-out. From Wikipedia ( http://en.wikipedia.org/wiki/Fan-out ): In digital electronics, the fan-out of a logic gate output is the number of gate inputs to which it is connected. In most designs, logic gate...
by Rene_is_I
Tue Apr 30, 2013 10:04 pm
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

I find it a bit odd that someone with technology knowledge, isn't aware of existing energy and power management in todays products!??! I think you are confusing energy and power management on battery/portable devices with mains powered ones. Most if not all portable devices have energy and power ma...
by Rene_is_I
Tue Apr 30, 2013 9:49 pm
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

gritz wrote:
It just smacks of short termism and even desperation (yet again).
I agree and must add that it's fraught with technical shortcomings too.
It's just another form of automated rolling blackouts.
by Rene_is_I
Tue Apr 30, 2013 9:42 pm
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

@Hampers I have one more question: Surely by switching the "heavy duty" parts of a fridge on and off more often will cause more inrush/starting current to the motor and decrease it's life span? This on/off story also creates more back EMF from the motor and thus will require more filtering which bot...
by Rene_is_I
Tue Apr 30, 2013 9:31 pm
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

Hi Hampers Yes a fridge is a slow reacting device in that if one switches off the power to it, it's not going to lose it's coldness straight away much like a boiler/geyser is not going to get cold immediately. I do however have several concerns/questions: 1) What negative effects will there be inter...
by Rene_is_I
Tue Apr 30, 2013 11:06 am
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

@Burngate Quite right, cfls use a switching supply where as the old tube strips use a choke and capacitor to generate a high voltage spike to ignite the neon gas inside then once it has ignited it will continue to conduct (and glow) at normal line voltage. Interstingly the old neon lights would also...
by Rene_is_I
Tue Apr 30, 2013 9:45 am
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

@jamesh
I haven't measured the noise being generated by those power line modems simply because I don't use them but can well imagine the RFI from all the wiring like you say.
I also agree that LED lighting is much better but I doubt we will see it being actively pushed for the reason you mentioned.
by Rene_is_I
Tue Apr 30, 2013 9:40 am
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

gritz wrote: If we did it properly we might even make a few quid selling the ideas and hardware to other countries. That would be novel.
Now there is an idea.
The Commonwealth wasn't created for nothing after all. ;-)
by Rene_is_I
Tue Apr 30, 2013 9:15 am
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

@jamesh Yes the RFI is short range but there are so many of these lights that it becomes a bit like cellular phones with more and more areas of RFI. The frequency range of this RFI is mainly in the low bands so if you only use the telly to watch sat tv snd UHF terrestrial transmissions and FM or DAB...
by Rene_is_I
Tue Apr 30, 2013 8:53 am
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

IMO the only thing that will be unlocked is the consumers wallets as they get fleeced once again by another "green" money making scheme. So this contraption senses the line frequency and when it gets too low due to excesive demand, it switches the appliance off. Since the idea is to get these things...
by Rene_is_I
Mon Apr 29, 2013 7:40 pm
Forum: Off topic discussion
Topic: "Big brother to switch off your fridge"
Replies: 64
Views: 8368

Re: "Big brother to switch off your fridge"

Are you sure it's fingers in ears? :D

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