... Hannes, A target for the gcc compiler? That is tremendous. You just might win me over to this MCU. ;) Good health and luck in 2005. Best regards, Joseph --...
Joseph DiVerdi
diverdi@...
Jan 3, 2005 9:00 pm
446
Hi Joseph! ... avr-gcc! Ain't that cool ? ;-) And the programmer-hardware can't be more simple! Well, the programming software is command line, but let's be ...
Hi Hannes, Thanks for this!! I'm excited about trying this, but still haven't made my digikey order. Have been spending my little vacation playing around with...
Hello all and Happy New Year I'm planing to build an avr board in order to record the output of a HMC1021 magnetometer. In your schematic you use a DB25...
Bonjour Patrick! ... Yeah, I know, most programmers are using the serial port now or USB, but usually my serial ports are occupied with the RS232 of my uC...
Hi Ned! ... Way cool! Any details/schematics you can share by now ? ... You know, I've tested one flat detector at normal air pressure and it seemed to work...
Just a quick thought about an earlier comment about trying to use a different gas at ambient pressure. I would strongly suggest helium for the following...
... Serial port needs a boot program in order to be used for programming. I use this programmer -> http://www.lancos.com/e2p/avrisp-stk200.gif the AVR ISP. The...
[CC to the particledetector group. Let's continue this discussion over there] Hi Charles! ... Well, the main reason why I want to operate the flat detectors at...
I was wondering if anyone had some schematics for a magnetometer. I am new, and am trying (with the help of a friend) to build a meter that will measure actual...
... I ... signal ... Jerry: What type of magnetometer are you trying to build? For an earth field meter you will typically be looking at either a fluxgate or a...
I am a new member to the group. So please forgive my ignorance on certain topics probably already discussed. Also, I am not native english speaker, so my...
Emmanouil, You mention the need to measure, "...DC current (10-70mV) occuring inside a lightly shielded environment." This statement is contradictory. Do you...
Dear Charles, Thank you for your reply. Indeed I meant to say that there there is a spike lasting 10msec (max) and in this 10msec the voltage increases from...
Folks, I am trying to build a simple magnetometer with a light that grows brighter when the axis is pointed towards north. What would you recommend to start...
Hi guys I'm new to the group and I have a question. My background is EE but I am weak in Magnetics. I'm trying to make an interesting magnetics experiment for...
Hi everyone, I'm using HMC1053 to design a magnetometer. The first problem I met is how to determine the offset. I tried to read ADC output when I set&reset...
We are mounting a honeywell hmc 1022 sensor on a tower my concern is that read alot about gimbals, and how they are needed if we set the captor on our board,...
Hi Shiram18: It depends on what you're trying to do. Since in most places the Earth's magnetic filed is stronger pointing down than it is in the horizontal...
... Hi Hasan! If you need only a compass behaviour I'd use a KMZ51. Those sensors are cheap and well suited for this (they're not so good for measuring the...
... hmmm... probably this won't work as thought, but anyway... What about a coil with many windings, a simple OPAMP and a sensitive moving coil instrument ?...
We're mounting the captor on a tower to orientate an antenna so we need the captor to be as close as possible to the antenna ... pointing ... work ... This ......
... Gary, Have you considered building a Helmholtz coil yourself? They're really not that hard to build. Here is an image of my old Torsion Balance...
Joseph DiVerdi
diverdi@...
Feb 1, 2005 3:56 am
470
Joseph, Thank you very much for your instant response and help. Build them by myself definitely is a good idea, but the main concern is the time. How long does...
Some time ago I saw a US Navy site that had a calibration Helmholtz coil using a 5 gallon water bottle as a form, with a winding on each end. They don't have...
... Gary, You're welcome. You are going to need to specify a few parameters (whether you build or buy). These include: - magnitude of the desired field -...
Joseph DiVerdi
diverdi@...
Feb 2, 2005 1:41 am
473
The helmholtz coil, Would you please explain for me why you want that coil. I would prefer a coil which is not having blind angles while messuring the...
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