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31  Community / Bar Sport / Re: Genius behind resistors stripe code and electrolytic cap wire length? [rant] on: November 20, 2012, 12:25:12 am
They have pad printers that can print on curved surfaces, and have been printing a band plus text on diodes for 50 years now.

I am guessing the diodes are rolled over the ink transfer medium ????

I simply hate those small diodes with unredable text, many times looks like that text is designed to fade away before user get it...

Cheers,
Kari
32  Community / Bar Sport / Re: Genius behind resistors stripe code and electrolytic cap wire length? [rant] on: November 19, 2012, 04:43:54 am
I teach color codes for myself when I was 8-9 years old, and they will never go away from my head, I probably forget my name before those codes. But, that must have something to do with age, I started to play guitar four years ago, and still haven't learn to read musical notes...

What I think about crying because of color codes... they are so much easier, and you have all the time in the world to read them; try to play music note by note, you will be kicked out the band... I hate notes!!!!
 smiley-wink

Cheers,
Kari
33  Community / Products and Services / Re: Frehs do it yourslef community on: November 19, 2012, 03:51:43 am
I think he is only looking for profits with ads on the site.

Cheers,
Kari
34  Using Arduino / Project Guidance / Re: Astro sector drive - tilt sensors - accelerometers - GPS - compass on: November 10, 2012, 05:04:20 am
Ok, then you should be fine, wide optics are easy, and if you are not going for more 1-2 minutes, it will work.
Polar aligment plays big role, when that is done carefully, you have easily 5-10 minute exposures.


Cheers,
Kari
35  Using Arduino / Sensors / Re: PS2 Mouse on: November 09, 2012, 06:22:10 am
We are using PS/2 mouse to measure wheel rotation, and I don't see why typical USB-mouse wouldn't do that as well.

So, it's time to se the code....?

Cheers,
Kari
36  General Category / General Discussion / Re: Bidirectional dc-dc converter on: November 09, 2012, 01:13:49 am
Interesting forum choice for the question like this... Your teacher don't read this?
 smiley-wink

Cheers,
Kari
37  Using Arduino / Project Guidance / Re: Project: sensor that triggers a stepper motor on: November 08, 2012, 05:33:34 am
Well, what do you think that would be a good start?

You will get help with your code problems (that has something to do with arduino)
once you have started your project, before that, learn the first steps.
There are good examples waiting within the IDE.

Cheers,
Kari
38  Using Arduino / Project Guidance / Re: Project: sensor that triggers a stepper motor on: November 08, 2012, 04:11:53 am
Do you know how to program with C-language?

Cheers,
Kari
39  Topics / Robotics / Re: SOLVED: Devantech SD21 servo contr. and desperate programmer, after one year... on: November 06, 2012, 12:39:23 am
Our project is not that heavy duty, we are trying to maximize the 12V 2500mAH battery life by cutting the power from motors and servos when they are not needed. Silent and bright, LED's are blinking and NRF24L01 is powered all the time.

If ever I start project with unlimited power supply, that BEC is on the list.

Cheers,
Kari
40  Using Arduino / Project Guidance / Re: Astro sector drive - tilt sensors - accelerometers - GPS - compass on: November 05, 2012, 08:10:47 am
You should consider using gears to get more precice accuracy and to increase torque.

What is the main optics you are going to use, telescope or something short like camera objectives?

Cheers,
Kari
41  Using Arduino / Project Guidance / Re: number sensing on: October 30, 2012, 12:54:00 am
Could you explain this one more time...? You are taking a photo of an old style teplephone dialing circle? And then... what?

Cheers,
Kari
42  Topics / Robotics / Re: SOLVED: Devantech SD21 servo contr. and desperate programmer, after one year... on: October 26, 2012, 01:59:12 pm
Very valuable information! Thanks!

Cheers,
Kari
43  Using Arduino / General Electronics / Re: Rfid Door Lock on: October 25, 2012, 07:27:45 am
It's a troll...

Cheers,
Kari
44  Using Arduino / General Electronics / Re: Rfid Door Lock on: October 25, 2012, 05:01:33 am
Components are named, which one is the problem? R1 could be missing something, maybe author would check the correct value. Or it could be just 10.

Bobby,
Be more specific with your questions.

Cheers,
Kari
45  Topics / Robotics / Re: SOLVED: Devantech SD21 servo contr. and desperate programmer, after one year... on: October 24, 2012, 11:26:00 am
We tested it with single servo only, and the position didn't change with less power consumption. We have probably 5 kind of different servos at this moment used, quite cheap models all.

When our big picture is ready, we start to check the problem, now our hands are full with combining  all four arduinos to work with each other.

I promise to tell if any progress happens with SD21.

Cheers,
Kari
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