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1  Forum 2005-2010 (read only) / Troubleshooting / Re: doesn't run on external power, 10k res. no hel on: May 08, 2007, 09:47:14 am
Hi Daniel,

Thanks for the suggestion, I'll try that when I get back - I'm out of town for a few weeks and couldn't get the board to work before I left...

2  Forum 2005-2010 (read only) / Troubleshooting / doesn't run on external power, 10k res. no help on: April 27, 2007, 07:42:47 pm

I had the same vexing problem with an arduino NG board that was reported by others, with it not starting when the board is powered on external power (9V through the power supply from Sparkfun), but all running fine when powered through the USB plug.

I was relieved when someone pointed me to the "10k resistor between RX and GND" fix, which I just put in. Except... the problem persists. The board still will not start the program when I have only the external power plugged in, but it runs fine if I have the USB plugged in and connected to a computer (even if it's powered through the external supply).

The resistor is running from the pin where RX (and 0) is marked on the end of one long black connector to the GND pin that is the second to last pin on the opposite end of the other black connector. Is that the way it's supposed to be connected?

Are there any other secret little tricks one needs to know to get the board to work?

Any and all help is much appreciated.

3  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: How can i turn a Decimal nr. into a hexadecima on: November 30, 2005, 02:40:25 pm

thats not what im surcing fore.

i count (something) so i get decimal numbers
than i want to play a song from a mp3 player, so i thats why I have to turn the tracknumber (which i get out of the count) from a decimal in to a hexadecimal number,

a bad discription again....
4  Forum 2005-2010 (read only) / Frequently-Asked Questions / How can i turn a Decimal nr. into a hexadecimal nr on: November 30, 2005, 12:51:05 am

how is it possible to turn a Decimal nr. into a hexadecimal nr in the programm,

i get values in dezi and have to change it into hexa fore playing songs at the mp3 player.....

i hope you get my question


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