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1  Using Arduino / Installation & Troubleshooting / Re: Arduino Mega2560 can't be programmed via USB on: March 25, 2013, 04:09:46 pm
Can you post the sketch that you are trying to upload?

Make sure you don't have three or more exclamations points in a row "!!!", the bootloader will interpret that as an escape sequence and enter a special mode.
It seems some kind of black magic!!! There is no any warnings in user's manual about limitations on "!!!" symbols!!!
It was my case anyway. Thanks for advice.
2  Using Arduino / Installation & Troubleshooting / Re: Arduino Mega2560 can't be programmed via USB on: March 25, 2013, 03:59:24 pm
Driver is correct. I've tried both in Windows 7 and Ubuntu 12.04.
Port is correct: it can upload small sketch "TimeSetRTC" which is DS1307 example. But my sketch doesn't.
In log file you can see PC recognized port as /dev/ttyACM12.
3  Using Arduino / Installation & Troubleshooting / Re: Arduino Mega2560 can't be programmed via USB on: March 25, 2013, 03:37:08 pm
The same issue with my Mega2560. Reproduced with IDE 1.0.1 and 1.0.4.
I'm disappointed. It seems Arduino is NOT so user-friendly as people say.
Too much headache for too much money... It is more convenient now to buy Raspberry Pi with ADC chip if needed.

Here is my boot log:

Code:
/home/user/bin/arduino-1.0.4/hardware/tools/avrdude -C/home/user/bin/arduino-1.0.4/hardware/tools/avrdude.conf -v -v -v -v -patmega2560 -cwiring -P/dev/ttyACM12 -b57600 -D -Uflash:w:/tmp/build7626980947593966222.tmp/TempMonDS18B20.cpp.hex:i

avrdude: Version 5.11, compiled on Sep  7 2011 at 19:34:16
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "/home/user/bin/arduino-1.0.4/hardware/tools/avrdude.conf"
         User configuration file is "/home/user/.avrduderc"
         User configuration file does not exist or is not a regular file, skipping

         Using Port                    : /dev/ttyACM12
         Using Programmer              : wiring
         Overriding Baud Rate          : 57600
avrdude: wiring_open(): releasing DTR/RTS
avrdude: wiring_open(): asserting DTR/RTS
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: Send: . [1b] . [01] . [00] . [01] . [0e] . [01] . [14]
avrdude: ser_recv(): programmer is not responding
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer

avrdude done.  Thank you.
4  Development / Other Hardware Development / Who will buy the geiger counter shield? on: January 20, 2013, 09:46:08 am
I would have continuous monitoring of radiation level outdoors.
There is such item which allows connection of a tube:
http://www.ebay.com/itm/Arduino-IDE-compatible-Geiger-counter-dosimeter-circuit-w-LCD-shield-/181038202229?pt=BI_Security_Fire_Protection&hash=item2a26b7bd75

But I think there is sufficient overhead it complexity and cost. If we connect to Arduino the scheme can be much simpler:
there will be enough DC-DC up-step voltage converter to supply tube, one indicating led and the tube discharge current detector.
I asked one of ebay's seller if the chinese folks can make and sell more simple and low cost shield than above one.
He ask me how many items do I need? I need one item but think I am not the only who need one. So I decided to ask others.
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