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511  Using Arduino / Microcontrollers / Re: ATtiny85 as ISP on: March 19, 2013, 04:13:31 am
This one?

http://tequals0.wordpress.com/2011/09/26/attiny45-based-usbtinyisp-programmer/
512  Using Arduino / Microcontrollers / Re: ATTiny85v and Sleep Functions on: March 14, 2013, 04:22:33 pm
Quote
Timer0 generates the interrupt which increments millis(),

Are you sure ?

From the core_build_options.h

Quote
/*
  For various reasons, Timer 1 is a better choice for the millis timer on the
  '85 processor.
*/
#define TIMER_TO_USE_FOR_MILLIS                   1

513  Using Arduino / Sensors / Re: Digital input frequency on: March 13, 2013, 08:11:48 am
Take a look at this:

http://www.pjrc.com/teensy/td_libs_FreqCount.html
514  Using Arduino / General Electronics / Re: How to estimate number of hours remaining before battery dies? on: March 13, 2013, 06:38:33 am
You could use the "Secret Voltmeter"

https://code.google.com/p/tinkerit/wiki/SecretVoltmeter
515  Using Arduino / Microcontrollers / Re: Avrdude Verifcation failure when using -q switch on: March 12, 2013, 01:46:43 pm
yet another error report re.: avrdude ver. 5.11 and 5.11.1 and USBTiny

http://forums.adafruit.com/viewtopic.php?f=25&t=28382

Quote
I'm using USBtinyISP and avrdude 5.11. I use it on a lot of different chips, it works fine.

Maybe difference in firmware version or driver or OS ?
516  Using Arduino / Microcontrollers / Re: Avrdude Verifcation failure when using -q switch on: March 12, 2013, 08:51:24 am
I don't know if this helps:

I noticed that a new release of avrdude, was released just one month after ver. 5.11  called 5.11.1

So maybe there was a bug in 5.11 ?

http://download.savannah.gnu.org/releases/avrdude/

More about ver. 5.11 problems

http://arduino.cc/forum/index.php/topic,152732.0.html
517  Using Arduino / Motors, Mechanics, and Power / Re: PPM Assistance on: March 10, 2013, 06:12:21 am
Take a look at the pulseIn() function or this:

http://rcarduino.blogspot.dk/2012/01/how-to-read-rc-receiver-with.html
518  Using Arduino / Microcontrollers / Re: SoftwareSerial unusable on attiny45/85 on: March 08, 2013, 10:03:40 am
If you are going to use the small cheap tx/rx you get on Ebay, I would suggest you use
the manchester encoding library.

Maybe you could use VirtualWire (I don't know if that can be used with the Tiny's)
519  Using Arduino / Microcontrollers / Re: SoftwareSerial unusable on attiny45/85 on: March 08, 2013, 09:09:05 am
Amigone

You could try the TinyTuner, to calibrate the internal clock

http://arduino.cc/forum/index.php/topic,8553.0.html

I know there was a lot of trouble with SoftwareSerial in earlier versions, but after version 1.01, I have not had any problems.

Maybe I am just lucky, ore maybe it is because I don't use it often, after I discovered Coding Badly's TinyISP.

http://arduino.cc/forum/index.php/topic,123388.30.html
520  Using Arduino / Microcontrollers / Re: Unable to program attiny45 with arduino IDE on: March 07, 2013, 03:10:44 pm

I can replicate your error if I use a USBAsp programmer, and a fresh Attiny85
It is possible because i have not updated the firmware like described in this thread

http://arduino.cc/forum/index.php/topic,149668.0.html

If I set the fuses to 8MHZ, it works.

Furthermore you could check the avrdude version
When I use Arduino IDE it uses version 5.11, and if I use the command line version 5.10 is used.

So maybe you have different versions too, that you use without knowing.
521  Using Arduino / Microcontrollers / Re: Unable to program attiny45 with arduino IDE on: March 07, 2013, 10:14:29 am
If you look at the verbose output you will see this error:

Code:
        Description     : USBtiny simple USB programmer, http://www.ladyada.net/make/usbtinyisp/
avrdude: programmer operation not supported

If you google that error you will get a lot of results from others using USBTiny as programmer, maybe some of them has the answer.
522  Using Arduino / Programming Questions / Re: Need a continuous loop on: March 06, 2013, 11:48:36 am
One way to do it:

Make your own alarm function, containing a infinite loop.

something like this:

Code:
if (letter_in_box==true){
  alarm();
}

void alarm(){
  while(1){
  //alarm stuff goes here
}
}
523  Community / Gigs and Collaborations / Re: self stabilizing platform 3 axes using arduin, imu 6050s , and 3 SERVOS on: March 06, 2013, 10:30:44 am
You could look for stabilized gimbals that is used in drones. More info and links:

http://arduino.cc/forum/index.php?topic=127566.0
524  Using Arduino / Motors, Mechanics, and Power / Re: How can I attach a crank like this to a motor like this? on: March 06, 2013, 10:21:31 am
These small motors (called pager motors) are used in micro airplanes, and usually the propellor is just a press to fit solution.
Make a 0.5 mm hole in the material you want to use, and press it on the shaft.

Quote
I guess it's the French system (mm)
  smiley-grin

A good one, I think the only country still using Inches is  USA   smiley-lol
525  Using Arduino / Microcontrollers / Re: core13: An Arduino core for the Attiny13 *testers wanted* on: March 03, 2013, 10:20:49 am
Quote
These things are hard to debug without a Serial interface.

You might be interested in this:

Using Coding Badly's TinyISP and knockbang library, it is posiible to get debug output from a tiny13 and your core:

http://arduino.cc/forum/index.php/topic,123388.msg1033756.html#msg1033756
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