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706  Community / Bar Sport / Looting - with full permission. on: June 20, 2012, 04:37:18 pm
A worldwide company making consumer electronics shutdown its Copenhagen branch a year or so ago. You cant just leave a campus of three big office buildings and 1000+ employees, most engineers, overnight, so by about now they are getting close to actually hand the empty buildings over. As a socially responsible company they are handing some of the leftovers to organizations like schools, needy homes and so on.

Of their R&D stuff, most of the good/expensive and in particular anything propriaritary equipment is handed to their other offices around the globe, but then there is a leftover remainder which is just "rubbish". They just can not be bothered to spend a year selling it on ebay. (If I did it it would be fulltime and yield a respectable income - there is so much!) My local hackerspace has been allowed to look at the leftovers and see if we can reuse some.

I think we now have enough SMD components to last us until that technology is as old as the radiovalve, we've have dozens or more movingboxes of the stuff. Similarily we filled a car or three of sorting boxes/cupboard/drawer systems of all shapes and sizes, and some odds and ends. The best bit was a few "robots" (small EM-radiationproof cupboard filled with pneumatic and electromechanics that did some assembly or stress test) for dissasembly of parts - and som large enviroment chambers also semirobotic - but the frames cam be easily reassembled into new boxes for our projects.

We were 8 men sorting, dissambling and loading into our trailers this afternoon and we will continue for two days more, or until we no longer can store any more in our space. We'll spend weeks giving it a second sorting and probably throwing half out. (What on earth does one do with 5000 small SMD induction coils?) It has been a great day, though smiley
707  Community / Bar Sport / Re: Congratulations to the Latest 20K Member! on: June 20, 2012, 04:06:21 pm
Ohhooh - I've got to reply to this thread, too. Another tiny step towards making the first K post...
708  Community / Bar Sport / Re: Raspberry Pi launch farce on: June 20, 2012, 04:05:06 pm
OK, so today I was invited to order. I've forgotten what the raspberry was/is, what I wanted one for, why I was waiting. Still, I've had a great day today, so I just hit the "yes, send me my Raspberry PI kit" - €64 including two SD cards - 9 weeks delivery. By the time it arrives, I might use it to ...<enter irrelevant and funny use here>
709  Using Arduino / Installation & Troubleshooting / Re: Arduino UNO smells funny when power is connected to it on: June 17, 2012, 12:40:58 pm
The blue smoke MUST remain inside the Arduino at all times, else it fails ...  smiley-cool

If the Arduino chip got warm, warm enough to smoke, then you did not connect your battery or servos correctly.

WIth nothing but the USB port connect to your Arduino board you can try to upload and run the blink sketch. If it works you have been lucky.

Or did the smoke come from something else than the actual microprocessor chip?
710  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 17, 2012, 11:11:10 am
Another few experiments later: The 1.0.1 works fine with my Sparkfun FTDI USB-Serial converter when going to a homebrew 328 based board, and it also works with the Duemlianove with only TX/RX where I push reset at the right time. (With the normal USB pushing reset makes no difference)

There is a faint possibility that there is a fault on the Duemlianove (but it works fine with 0022 version) but all other boards I have now work fine with the old (avrdude: Version 5.4-arduino) and the new kit (avrdude: Version 5.11).

I get exactly the same problems and solutions on both Win-XP and Win-7 machines.
711  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 16, 2012, 05:24:50 pm
Status so far:

After upgrading from Arduino IDE version-0022 to the Arduino 1.0.1 it was necessary to upgrade the drivers with the new ones in the kit for upload to work on an Arduino UNO and an Arduino MEGA 2560. (These use the new "u2" chip)

Unfortunatly it has not worked for the Duemilanova (which uses the "old" FTDI chip) - the version 1.0.1 IDE still can not upload to it (error message as in earlier post, LED blinks) but the 022 IDE works fine even with the latest drivers from FTDI. This happens both on an Windows XP and a Windows 7. I suspect the same problem will be with the "serial cable" from Sparkfun which also uses the FTDI chip.
(Edit: typos fixed and ambigous wording clarified)
712  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 16, 2012, 04:54:14 pm
Working on it ... smiley-sweat now it is only the Duemilanova that is having difficulty.
713  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 16, 2012, 04:15:27 pm
Having a little help and understanding (really more the latter) is a great support.  smiley  Thanks.

The 1.0.1 now uploads correct on the win7 machine after I upgraded the USB driver (admin computer, device manager, upgrade driver ...).

I am trying the same stunt on the XP - but am having difficulty ... doesnt seem to find the driver, irrespective of my pointing to it (using the 1.0.1 kit)
714  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 16, 2012, 03:39:01 pm
At the moment both the Dueminlanove, a Mega 2560 and an UNO. Got a few homemade 328-boards I program with a "serial cable", I'll try with one of them. (The MEGA I've always had trouble to get to run on the Win7, so I cant confirm that one)

(Edited that test and failure includes the UNO)
715  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 16, 2012, 03:11:48 pm
LED 13 blinks. Both with the 022 upload (which works) and the 1.0 (which doesn't)

What bothers me I get the same problem on the other machine. I could understand if I had this on only one - in the sense one was wrongly configured.
716  Using Arduino / Installation & Troubleshooting / Re: 022 uploads, but 1.0 fails on: June 16, 2012, 02:45:00 pm
Binary sketch size: 1026 bytes (of a 30720 byte maximum)
C:\Programmer\arduino-1.0\hardware/tools/avr/bin/avrdude -CC:\Programmer\arduino-1.0\hardware/tools/avr/etc/avrdude.conf -v -v -v -v -patmega328p -carduino -P\\.\COM3 -b57600 -D -Uflash:w:C:\DOCUME~1\Michael\LOKALE~1\Temp\build5901131632528936530.tmp\Blink.cpp.hex:i

avrdude: Version 5.11, compiled on Sep  2 2011 at 19:38:36
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "C:\Programmer\arduino-1.0\hardware/tools/avr/etc/avrdude.conf"

         Using Port                    : \\.\COM3
         Using Programmer              : arduino
         Overriding Baud Rate          : 57600
avrdude: Send: 0 [30]   [20]
avrdude: Send: 0 [30]   [20]
avrdude: Send: 0 [30]   [20]
avrdude: Recv:
avrdude: stk500_getsync(): not in sync: resp=0x00

avrdude done.  Thank you.
717  Using Arduino / Installation & Troubleshooting / 022 uploads, but 1.0 fails on: June 16, 2012, 02:12:47 pm
Hi,

I can upload to my Arduino if I use the 022 version, but not when using the 1.0 (or 1.0.1) version. It comes back with a sync fail.

This is true for several Arduiono boards and on my two machines which us Win-XP and Win7(64) respectivly. So it isnt something simple like I forgot to plug it in smiley

As this works for thousands of other users there is something strange about my setup. I have both 022 and 1.0 (and now even 1.0.1) installed. I noticed the preferences file is the same - my settings are "transfered" between the versions. I have tried with a fresh preferences (delete the current one, it generates a new one)

Any clues where else to look?
718  International / Scandinavia / Re: Arduino + ethernet sende alarm ved indgang on: June 14, 2012, 04:55:11 pm
så ville jeg gerne have en computer til at stå et sted, som kunne opsamle de data, og sende en mail ved strømudfald.
Du har selvfølgeligt tænkt på at computeren kræver strøm ved dette strømudfald ... og det også gælder dine internet router, Arduinoen osv.

Du skal bare skaffe dig en Arduino med Ethernet f.eks. http://store.arduino.cc/eu/index.php?main_page=product_info&cPath=11&products_id=142

Nogle ting kan være nemmere end du tror:  Hvis det bare er en "enkel mail" så er mail protocollen tilpas enkel at Arduinoen kunne sende den selv (hvis alle detaljer er fast kodede i programmet, som navn, adresse, SMTP server m.m.)

Principerne i det du vil er nemme nok (hvis vi har forstået dig ret) - men detaljerne er besværlige. F.eks. de præcise måde Arduinoen kan se at det er HPFI der er faldet ud, og ikke bare en sikring er sprunget ...

Jeg har ikke set en færdig opskrift, men hvad har du fundet af del løsninger? Hvad mener du med "el tavlen har Ethernet"?
719  Using Arduino / Project Guidance / Re: Controlling a Thermoelectric heater/chiller for environmental chamber on: June 13, 2012, 02:55:10 pm
Why not just simply try it ?

The point of a temperature regulation is that you dont need to know the Watt/cm2/time/mm-glass whatever, it will hold the desired temperature (unless the unit is not big enough ... but again, the experiment will show it)

Written by someone who has forgotton all those heavy equations from collage a lifetime earlier....
720  Using Arduino / Project Guidance / Re: Controlling a Thermoelectric heater/chiller for environmental chamber on: June 12, 2012, 02:43:46 pm
The syntax is the if-then-else
Code:
if ( 06 < hour && hour <= 12 )
      { dosetpointstuff(75) }
else if ( 12 < hour && hour <= 18 )
      { dosetpointstuff(82) }
...  continue with above two lines for other intervals
else // no need to test for "remaining" hours in day
      { dosetpointstuff(48) }
 
Note that I use the "<=" on one of the tests. In your code, the code does not know what to do when the time is exactly 1200

Secondly, I usually rearrange the test so the value is visually between the boundaries ( X < value && value < Y )
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