MAKE: Noise — Discuss this article

Showing messages 1 through 16 of 16.

• source (and partnubmer) for 1mA meters?
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  can someone post a link to a suitable meter for this project? I don't know enough about meters to trust myself evaluating data sheets.

  Posted by ih8gates on March 15, 2008 at 12:18:31 Pacific Time

• source (and partnubmer) for 1mA meters?
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  Unfortunately the store I bought them from doesn't have an online catalog. Look for a meter that does not require a shunt. Also expect to say around $8 each for them. Some web searching should be able to turn up something appropriate. I would try to find a meter that is somewhere between 10mA and 100uA. Too high a rating and the microcontroller will not be able to source enough current. Too low and noise might be an issue. Make sure that you match the resistance to the meter. With a 5Volt meximum output, you will need a 500 Ohm resistor for a 10mA meter or a 50KOhm one for a 100uA meter.

  Posted by GeneScogin on March 15, 2008 at 22:46:02 Pacific Time

• source (and partnubmer) for 1mA meters?
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  yeah... I can tell I'm a bit out of my element here. I'm not even sure about what you mean by "shunt". yikes.
  
  looking at another similar project I found this.
  
  is this the right kind of potentiometer to buy?
  
  thanks!

  Posted by ih8gates on March 16, 2008 at 10:59:39 Pacific Time

• source (and partnubmer) for 1mA meters?
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  The meter looks like the right type. Electrically the pot should work, the only concern is if it will fit on a solderless breadbord.

  Posted by GeneScogin on March 17, 2008 at 09:11:42 Pacific Time

• source (and partnubmer) for 1mA meters?
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  thanks... i guess i'm turning this in to "intro to electronics".
  
  what's the clue to look for with a pot (or a switch, etc) that'll let me know it'll work on .10" spaced breadboards? looking over the datasheet doesn't seem to note that. Is it typical to have to do a little bending to get the pins to mate properly with a breadboard? just pick one that has leads that look long enough to bend?
  
  thanks again!

  Posted by ih8gates on March 17, 2008 at 10:50:43 Pacific Time

• Code
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  The last dude is right, we have no dice on the code button. I actually have all the components I need, but am lacking the c skills.

  Posted by slingshotkid18 on February 25, 2008 at 20:00:11 Pacific Time

• Code
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  The code link above has been updated and all should be right in the world. :)

  Posted by golim on February 26, 2008 at 16:34:20 Pacific Time

• Code
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  Yep, no code here, however there are pleny of Arduino analog clock projects on the web, this guy has build and code instructions for a 3 meter arduino clock:
  http://www.electronics-lab.com/blog/?p=1143
  or you could try a google search.
  Shame that this make project has not been completed with the c code, but that is life I guess. Hopefully someone at Make will look at these posts and correct the error.
  

  Posted by 3d-king on February 26, 2008 at 11:02:46 Pacific Time

• Would love a video of this
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  Otherwise I might be forced to make my own!
  
  (btw, I've been generating curves directly to SVG and using Inkscape to convert them to PDFs. If xfig works for you, that's great, just thought I'd pass that tip along.)

  Posted by drysdam on February 24, 2008 at 18:45:49 Pacific Time

• Would love a video of this
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  ok I finally made a quick video of the clock running and it is here

  Posted by GeneScogin on March 03, 2008 at 22:23:57 Pacific Time

• Would love a video of this
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  I will try to make a video in next few days and ill post a url where you can download it.

  Posted by GeneScogin on February 26, 2008 at 22:48:20 Pacific Time

• No Arduino Code
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  I love the project! but you forgot to include the Arduino code.
  
  Please update for us so that the gauges can flow.
  

  Posted by stmaus on February 22, 2008 at 19:35:14 Pacific Time

• No Arduino Code
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  I downloaded the file above (Code). and then opened the cpp file in Notebook and then pasted it in to the Arduino for Windows application.
  
  Then I uploaded it to the Arduino Decimela and voila... it works!
  
  I just have it rigged temporarily for the moment with the breadboard, but it's keeping time, and I can set the time.
  
  My first little project. COOL!
  
  MAKE is a neat magazine!.
  
  Q

  Posted by kellzey on May 23, 2008 at 19:39:57 Pacific Time

• No Arduino Code
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  Im glad you have it working. Post a picture of it once you get it all put together

  Posted by GeneScogin on May 23, 2008 at 22:01:21 Pacific Time

• No Arduino Code
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  If you look at the links above these comments, you will see the one for the code. Enjoy!

  Posted by golim on February 23, 2008 at 16:07:53 Pacific Time

• No Arduino Code
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  The code link only goes to a tcl file for generating the graphics in the gauges, not a pde file needed by the Arduino compiler.

  Posted by stmaus on February 23, 2008 at 19:42:39 Pacific Time