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1  Using Arduino / Motors, Mechanics, and Power / Help making an arduino servo controller? on: October 01, 2012, 07:08:46 pm
Hello all,

I had an Idea recently for a robot. It is very simple, as it only requires a servo to move forward and back. I have had trouble finding any information as to how to interface something like a H-bridge with the Arduino. Can anyone help please? Thanks.

-flam
2  Using Arduino / Motors, Mechanics, and Power / Re: 500VDC power supply circuit? on: August 31, 2012, 02:25:36 pm
Okay, thank you.

-Flam
3  Using Arduino / Motors, Mechanics, and Power / Re: 500VDC power supply circuit? on: August 30, 2012, 06:29:59 pm
Okay. Would a non-digital multimeter work to measure voltage?

-Flam
4  Using Arduino / Motors, Mechanics, and Power / Re: 500VDC power supply circuit? on: August 30, 2012, 05:08:37 pm
Should I put a potentiometer on the end and tinker until I reach target voltage?

-Flam
5  Using Arduino / Motors, Mechanics, and Power / Re: 500VDC power supply circuit? on: August 29, 2012, 07:36:26 pm
Interesting. I will try that out. I guess with a lot of tinkering I could get it pretty close to what I want.

-Flam
6  Using Arduino / Motors, Mechanics, and Power / Re: 500VDC power supply circuit? on: August 29, 2012, 03:15:25 pm
OH! I actually removed the flash from a disposeable camera for the purpose of making the power supply. Do you think I could use a voltage multiplier to step up voltage to 500v? And what is a diode cascade? Is it similar to a voltage multiplier? (CW)

-Flam
7  Using Arduino / Motors, Mechanics, and Power / Re: 500VDC power supply circuit? on: August 28, 2012, 07:16:30 pm
Thank you. I do not yet posess the equipment to find the resonant frequecy of anything, although I might try to make a CRT osscilloscope in the future. The tube I got is from LND, inc. It is model LND-712, but I was originally going to use the CI-3BG until I heard of its terrible sensitivity. Is there any way I can find the resonant frequency without the osscilloscope? Personally, I have never seen transformers in flashlights, but I can't say I've taken many apart.

-Flam
8  Using Arduino / Motors, Mechanics, and Power / 500VDC power supply circuit? on: August 27, 2012, 03:48:04 pm
Hello,

I recently was given a Geiger tube for free. I have already built the detector, but the tube I have requires 500VDC to operate at full potential. I have yet to find a pre-made power supply, or a schematic that will provide that voltage. Does anyone know of any schematics they have found/designed? Thank you.

-Flam
9  Using Arduino / Sensors / Re: Rotation sensor for robotic arm? on: August 24, 2012, 02:37:17 pm
Thank you. I will try an encoder.
10  Using Arduino / Sensors / Rotation sensor for robotic arm? on: August 23, 2012, 08:17:47 pm
Hello,

I recentley had an idea. What if I made a robotic arm that responds to movement in your arm? The only thing that I don't know how to do are the rotation sensors for the brace that attaches to your arm. I thought about using pots, but can that be used to measure degrees of rotation? Thank you.

-flam
11  Using Arduino / Sensors / Re: LND-712 GM tube schematic. What is "signal"? on: August 20, 2012, 02:59:43 pm
So signal will be running to the detector, not the ground of the tube?

12  Using Arduino / Sensors / LND-712 GM tube schematic. What is "signal"? on: August 20, 2012, 02:49:08 pm
Hello,

I recently acquired an LND-712 Geiger tube. The schematic that LND provided shows how to wire to the detector, but I don't know what "signal" is supposed to represent. Here's the schematic: http://www.lndinc.com/products/711/. Can anyone help?

-Flam
13  Using Arduino / Project Guidance / Re: Arduino counts per minute calculator? on: August 06, 2012, 09:05:40 pm
Thank you. Will it work with Uno?
14  Using Arduino / Project Guidance / Re: Arduino counts per minute calculator? on: August 06, 2012, 04:18:43 pm
Thank you Grumpy_Mike.
15  Using Arduino / Project Guidance / Re: Arduino counts per minute calculator? on: August 05, 2012, 03:49:01 pm
Here's the schematic: http://www.mare.ee/indrek/geiger/#clicker
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