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

Okay, thank you.

-Flam

Okay. Would a non-digital multimeter work to measure voltage?

-Flam

Should I put a potentiometer on the end and tinker until I reach target voltage?

-Flam

Interesting. I will try that out. I guess with a lot of tinkering I could get it pretty close to what I want.

-Flam

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

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

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

Thank you. I will try an encoder.

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

So signal will be running to the detector, not the ground of the tube?

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

Thank you. Will it work with Uno?

Thank you Grumpy_Mike.

Here's the schematic: http://www.mare.ee/indrek/geiger/#clicker