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46  Forum 2005-2010 (read only) / Development / Re: ATTiny85 port (work in progress) on: May 29, 2010, 10:29:06 am
What's the smallest ATtiny that works? Even the ATtiny13(A)?
47  Forum 2005-2010 (read only) / Development / Re: Mega ISP: slowing down programming speed? on: May 23, 2010, 06:37:24 am
Prescaling the clock will break the serial communication, won't it?
Thanks for the links!
48  Forum 2005-2010 (read only) / Development / Mega ISP: slowing down programming speed? on: May 04, 2010, 04:00:52 pm
I've successfully built a MegaISP on a breadboard - and I could programm an ATtiny13. Unfortunately, I wrote some code to set it's clock really slow and now the MegaISP cannot programm it any more.

Is there a way to slow down the MegaISP?
49  Forum 2005-2010 (read only) / Interfacing / Re: Totally newbie: Vibration vs. Accelerometer on: May 26, 2010, 05:26:57 pm
You could suspend a small metal ring between two electrodesd (all made from cheap copper wire): a movement will shake the ring an break the contact momentarily. Then use an interupt routine to detect a change of the signal.
50  Forum 2005-2010 (read only) / Interfacing / Re: Unknown GPS modules (lots of them) on: May 21, 2010, 11:33:33 am
I'd look up the pinout of the handspring conector. I'd suspect nothing sophisticated there (my original palm had a vanilla RS232 serial interface).
EDIT: maybe you can use these hints: http://www.soaringpilot.com/dokuwiki/doku.php/soarpilot/hard-wired_connection#handspring_visor_gps
51  Forum 2005-2010 (read only) / Interfacing / Re: proximity sensor with arduino on: April 23, 2010, 06:33:48 pm
depends on your installation: you might try PIR sensors
52  Forum 2005-2010 (read only) / Exhibition / Re: Arduino Pong (resitor question) on: May 28, 2010, 05:02:54 am
Is the 75 Ohm resistor really needed? The linked page that explains signal generation put this resistor INSIDE the TV. The Other arduino TV-library did not recommend this resistor either!
53  Forum 2005-2010 (read only) / News / Re: Centipede Shield Now Available on: June 18, 2010, 04:50:02 pm
Great stuff, you will definitely sell a lot of them!
Are the schematics available? Which IC do you use?
54  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Arduino timer on: June 18, 2010, 05:05:03 pm
Some clock ICs can signal an alarm by themselves. So you could send your Arduino to sleep and have it wake up by an interrupt triggered by the clock IC.
Well, if power consumption is not your concern, just get the time from the clock IC, compare it to the alarm time, delay(1000), and start from the beginning.
Of course, you can do this without additional hardware (like the clock IC) - the search-function will help.
55  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Buying a debuger on: June 16, 2010, 05:05:59 pm
The JTAG-hardware debugger will not work because the 328P does not have a JTAG interface.
56  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: 7 segment LED on: May 16, 2010, 05:42:07 pm
So, where's your problem? Your code works, and you can wrap it up into a nice, small function that you call from your main program.
57  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: Arduino Starter Kit Suggestions on: May 19, 2010, 12:34:33 pm
+1 for the servo - this is a must.
Small vibration motors are cheap and fun, too.
A Wii nunchuck clone is cheap (9 EUR) and offers a lot.
58  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: pinMode execution time? on: April 23, 2010, 06:00:21 pm
if i get you right, the you have a direct connection between the buttons and the keys, thus pressing a button sends a signal regardless of the pinmode. so this cannot work. get yourself some shift registers to increase the pincount.
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