Raspberry Pi Forums

simpex

CPC Farnell - Raspberry Pi 2 units in stock
Thu Feb 19, 2015, 6:33 pm - 1543 units
Thu Feb 19, 2015 8:59 pm - 1527 units
Thu Feb 19, 2015 10:13 pm - 1523 units

The new prediction is 5.45 units sold / hour which means 1831 in 14 days.

simpex

Statistically the hypothesis of a new stock that arrived in the meantime is unlikely. We can check the stock in a few hours, three times tomorrow, etc. and you will see that the figure decreases continuously. The idea that new stock arrives a few times a day for days in a row, and by an extraordinar...

simpex

CPC Farnell Thu Feb 19, 2015, 6:33 pm - 1543 Raspberry Pi 2 units in stock Thu Feb 19, 2015 8:59 pm - 1527 Raspberry Pi 2 units in stock see: http://cpc.farnell.com/raspberry-pi/raspberrypi-2-modb-1gb/sbc-raspberry-pi-2-model-b-1gb/dp/SC13793 This means that CPC Franell sells 6.57 Raspberry Pi 2 / ...

simpex

When l go on the Farnell site it tells me the pi is supplied by cpc (part of Farnell) tried them? Yes, this is a good idea. CPC Farnell has 1543 Raspberry Pi 2 units in stock. I simply wrote 2000 units and press BUY and the site returned just 1543 in stock. see: http://cpc.farnell.com/raspberry-pi/...

simpex

Raspberry Pi 2 - Basic Starter Kit Availability: In stock. $69.95 Source: http://www.canakit.com/raspberry-pi-2-basic-kit.html That will cost me at least 90$ if I order one kit. Where exactly can I find Raspberry Pi 2 boards with no accessories? Somebody says he bought a Raspberry Pi 2 from Farnell ...

simpex

Raspberry Pi Model B+
https://www.sparkfun.com/products/12994
1,092 in stock

Raspberry Pi 2, no unit at Sparkfun, they have never sold this model, same as in the case of Farnell UK.

It is a bit strange!

simpex

Raspberry Pi 2 sales top 500,000 in two weeks Exclusive Eben Upton tells us that latest model already accounts for one in 10 sales By Dave Neal, Wed Feb 18 2015, 15:49 EBEN UPTON, the head of the UK computing success story that is the Raspberry Pi Foundation, has told The INQUIRER that the new Rasp...

simpex

" Intel's Compute Stick is an entire PC in a $149 HDMI dongle " http://iq.intel.co.uk/wp-content/uploads/2015/02/Compute_Stick_03-1024x370.jpg " The Compute Stick is an entire PC crammed into a small-ish HDMI dongle. Inside you'll find a quad-core Bay Trail Atom processor, 2 GB of RAM and 32 GB of ...

simpex

Tronsmart MK908 quad-core Android stick, $90

Source: http://liliputing.com/2013/04/tronsmart ... video.html

simpex

A 2 inches $120 - $150 Mini PC powered by ANDROID 4.4 KITKAT, like a smartphone, and capable to run applications from Google Store (https://play.google.com/store/apps?hl=en) " The CuBox-i is compatible with Android and currently runs Android 4.4 KitKat. It is one of the official firmwares that you ...

simpex

Raspberry Pi 2 Boasts Appetizing Price, Windows 10 Friendly By Christian de Looper, Tech Times | February 14, 2:40 AM " Currently the device supports a number of different Linux-based operating systems, however as mentioned before it will soon also support Windows 10. Raspberry Pi has been working ...

simpex

Raspberry Pi should have a RAM Disk to transfer the OS from the SD Card in a RAM partition, when the board is powered, and then the OS should run from RAM till a shut down command is given that will save various changes, made in the RAM partition, back to the SD Card. SD cards are simply not suited ...

simpex

I hope that Raspbian and other operating systems, that run on Raspberry Pi, do not read and especially write all the time the SD card as Windows does on a Hard Disk.

simpex

I heard people's OS image got corrupted on sdcard. Is Nand chip more robust. I never heard BIOS being corrupted on Nand flash chip. A SD Card is a NAND flash chip! A BIOS is usually a NOR flash chip. It can be read as easily as a RAM (unlike SD Cards) but when it comes to write operations after abo...

simpex

Laser's should by definition not diverge at al. So they should have the same intensity across the entire dot A Gaussian beam emitted by a Helium-Neon laser hitting a screen. http://cache2.asset-cache.net/gc/128620433-gaussian-beam-emitted-by-a-helium-neon-laser-gettyimages.jpg?v=1&c=IWSAsset&k=2&d=...

simpex

Raspberry Pi 2 can easily come close to a halogen lamp (http://www.homedepot.ca/catalog/halogen-bulbs/172459) that likely will cause it to either freeze or reset... You might want to test your data-surmised hypothesis. By shining one of those lights on a Pi 2 for example Luckily, I do not have a Ra...

simpex

I made no confusion regarding the solar irradiance. I simply used both units, mW/cm2 and W/m2. 135 mW/cm2 (sunlight) is well above 4 mW/cm2 (the reset level)! Secondly, http://www.silabs.com/Support%20Documents/TechnicalDocs/AN0878.pdf does not say the CSP packed circuit, reset there under halogen l...

simpex

It appears that circuits inside CSP packages are upset by irradiances as low as 4 mW/cm2 (direct sunlight > 100 mW/cm2) Not only Xenon flashes or Laser Pointers can cause ICs inside CSP packages to malfunction but continuous halogen light with irradiances ranging from 4 to 30 mW/cm2 (well below the...

simpex

Speed of moving the dot is irrelevant - the point is that as the dot hits the edge, there is an instant increase in light (providing it's a decent laser). One moment unlit, next moment lit. Speed is relevant because the laser dot does not present a constant intensity across its entire surface. The ...

simpex

Of all the constant light sources, direct sunlight produces the most pronounced change in 1v2 core voltage (which is to be expected with a massively broad-band, high intensity source) but this is far more benign than the instantaneous change caused by a xenon lamp. The discharge time for a lamp is ...

simpex

If the watchdog is active, does Raspberry Pi 2 always reset after being illuminated with strong light sources that cause glitches to that U16?

simpex

Die Schatzjaeger wrote:As far as I tested the (hardware) Watchdog does it's job.

Then why does Raspberry Pi 2 freeze, after being illuminated with a Xenon Flash or Laser Pointer, without resetting and starting to run its code again?

simpex

jamesh wrote:The sun is VERY bright in Cambridge at the moment...

And have you tried to suddenly (not little by little) expose Raspberry Pi 2 to direct sunlight? (Windows reflect the infrared radiation so they have to be opened if you are indoors.)

simpex

" Other bright lights – even camera flashes using other technologies – won’t set it off. You can take your naked Pi 2 in the sunshine for a picnic or take it to a rave, and it’ll be perfectly solid. " Source: http://www.raspberrypi.org/xenon-death-flash-a-free-physics-lesson/ I am not fully convince...

simpex

Both Xenon Lamps and TV Remotes have near infrared spectra. see: http://www.raspberrypi.org/forums/viewtopic.php?p=688609#p688609 and http://en.wikipedia.org/wiki/Light-emitting_diode Far infrared is out of question. It is too distant. see: http://en.wikipedia.org/wiki/Far_infrared Secondly, the one...

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