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1  Using Arduino / Project Guidance / Re: TMP36 Graphing to GNUPlot on: December 13, 2012, 08:38:49 pm
I've done a few things that you recommended.  I used a multimeter and put the prongs on ground and the middle output pin.  It measures 0.35v or so.  I then hooked up the wires that come out from the breadboard, and attached my multimeter to the ground and output lines.  The output was not hooked up into the Arduino.  The ground was hooked up to the multimeter but was grounded at the Arduino. I got 1.2v at room temperature, 1.0v pressing a finger to it, and 1.6-1.9v with an ice cube on it.
When I hooked the circuit up normally but poked the multimeter prongs in, I got 0.12-0.17v volts, varying up and down every few seconds.
The 10k trimpot produced a steady number, varying from 0-1024 as the documentation says it should, as I turned it.  I could leave it in any one position, and the output was solid.
What am I doing wrong?
Thanks
2  Using Arduino / Project Guidance / Re: TMP36 Graphing to GNUPlot on: December 12, 2012, 07:23:35 pm
The code that is on the arduino has the correct port, I should have mentioned that.
3  Using Arduino / Project Guidance / TMP36 Graphing to GNUPlot on: December 11, 2012, 09:54:45 pm
Hi all,
I have an arduino Uno, hooked up to a breadboard from the sparkfun starter kit.  All these parts are about one year old. I have attached pictures of the circuit, to the best of my ability.  Ignore the button on the breadboard, that was for testing other things that aren't hooked up anymore.

Anyway, I have the following code:
http://arduino.cc/forum/index.php/topic,3571.msg27603.html#msg27603

My issue is, the TMP36 is very inaccurate.  The data ranges from 115F down to 0F, with no limits on the randomness or crazyness.  I have it hooked up via USB and to a 9V 1A power supply, for sufficient juice.  Here are some sample coordinates its placing (the second number is the temp):
Code:
['1.00', '97']
['2.00', '70']
['3.00', '58']
['4.00', '42']
['5.00', '25']
['6.00', '0']
Can anybody help?
THANKS
4  Using Arduino / Project Guidance / Re: QUADBOT on: August 10, 2011, 01:23:37 pm
Is this supposed to be an RC Car?  What all do you want it to do?
5  Using Arduino / Project Guidance / Re: Remote control and monitor by a robot and camera over internet? on: July 30, 2011, 04:38:27 pm
I am greatly interested in this project.  Please, keep us updated.
If you need anything, could my HTML/CSS be of any use?  I would love to learn Java or Python, but Python preferably.  Just trying to make myself useful LOL.
6  Using Arduino / Project Guidance / Re: Remote control Arduino Tank on: July 30, 2011, 04:22:13 pm
I'm an RC guy, admit though not very experienced with Arduino.
IMHO, I would just buy a tank, but if you are looking for a project, then this may work.  xBees, hardware wise are very easy to connect.  I have not personally used them, but they are very easy to physically connect.  Code wise, IDK anything about it.  I too wanted to build an RC car, although the Arduino would control taillights/headlighs/speedometer.  It just costs too much.  It is easier to just buy a name brand one and mod it from there.  Or, but a cheap one and arduino it.
Just my $0.2...
7  Community / Website and Forum / Re: Arduino Forum Logo on: June 06, 2011, 07:52:31 am
Okay, it is good to see that some agree and some like it.  My thing is, and I do love the grey bar at the top of the screen, is that Forum is small text, and the Arduino Forum logo you would think goes to the forum.  How often do you guys go back to the main site?  I mainly stay in the forums and go to the Wiki via the Main Site button.
8  Community / Website and Forum / Arduino Forum Logo on: June 05, 2011, 08:30:58 pm
Hello Community, I have a Suggestion for the forum!
I think that when you are anywhere in the forum, and you click the Arduino Forum logo, it should redirect you to the main forum page.  Normally, that is the easiest way to get back to the main page, as most do not want to go to the main Arduino site.
Just my opinion.
9  Using Arduino / Sensors / Re: Have Camera Feed to LCD? on: June 05, 2011, 08:22:09 pm
I have a change of plans.  I am making a post over in Projects for getting started.  Anyway, here is what I am thinking.
I will use a RC motor, wheels, and a security camera which will hopefully feed to the monitor.  IDK if they exist, but I am hoping I can put the receiver on the back of the monitor, and then route that cable over to the monitor.  Since I am using the RC motor, I will need the RC controller.
Thanks for the help.  I will be in Projects now.
10  Using Arduino / Sensors / Re: Have Camera Feed to LCD? on: June 05, 2011, 07:24:56 pm
Quote
So, maybe 8FS would be enough
How much bandwidth have you got (bytes per second), and what does this look like divided by eight?Where/how does the image get digitised?
Well....
http://www.sparkfun.com/products/8665
So 250kbp/s divided by 8 is 31.25 kbp/s for 1 frame.  I do not think that is enough.
KE7GKP:  Okay, so I will be looking for one of those.  I am looking for a receiver though that I will be able to modify the output so it will work with that LCD screen.  Any suggestions on that anyone?
Onions:  that looked good, but the TV is a downfall.  The LCD will be built into the controller, with the joysticks on each side.  It will be extream, that is why I want to make sure that I have hopes that are not to high.  smiley
11  Using Arduino / Sensors / Re: Have Camera Feed to LCD? on: June 05, 2011, 12:49:25 pm
Well, I assumed when I said "Not Need to Update Frequently" and then "RC Car", you can assume that once a day or once a fortnight is a bit extream.  Just enough frames so you can see where the car is going at 10MPH without too much skipping.  Last I knew, XBee can do like 8FS can't it?  I do not know frames, because I have not watched videos and had the frame rate below the video.  So, maybe 8FS would be enough.
12  Using Arduino / Sensors / Have Camera Feed to LCD? on: June 05, 2011, 10:45:42 am
Hello Arduino Community!
For starters, I can now spell Arduino without looking at your logo!  Yeahaaa!  Anyway, I am thinking about a new Arduino project, which I would do after I learn Arduino better.  But, I wanted to know if this certain part of it would be possible.  The project will be in the Projects section here in a few....
So, I want to have a RC car, maybe controlled by Radio or XBee, I am not sure.  I want to have a camera on the car, and have it feed to a LCD built into the controller.  But, in order to start the thread in the projects area, I have to know what interface to do guys think I should use?  The LCD I want to use is here:
www.sparkfun.com/products/8335
It does not need to update frequently, so maybe XBee will still be able to do it?  The wireless security cameras avaible seem to be quite expensive, and would require additional components in the controller.  So, what interference do you think I should use for this project?
Thanks Guys!
13  Using Arduino / General Electronics / Re: So What Should I Expect? on: May 31, 2011, 09:39:24 pm
That is true.  Anything else in the lead solder is also coming out of it..... if it has a lower boiling point.
14  Using Arduino / General Electronics / Re: So What Should I Expect? on: May 30, 2011, 06:57:36 pm
Thanks cr0sh, I will look at that link.  I now have at least three ideas for Arduino projects, so this is all great info for me to stock up on, you could so say.
I believe the question here is answered.
Thanks man!
15  Using Arduino / General Electronics / Re: So What Should I Expect? on: May 28, 2011, 08:50:34 pm
Thanks cr0sh for the extra advice.  I am so glad, I finally figured out how my sensors are going to work in the project I have in mind.
That is a great point about the solder, and will remember that.  I guess I never really thought about it.  Thanks, point taken.  smiley
It would really suck if I took apart something that is worth money to get parts that if not removed would have been worth more.  I will be on the lookout for those.
I will pickup some small shelving units for parts, or a tackle box.   Maybe both, smiley.
We have an old '79 GMC Grande Sierra, but the transmission is blown and the engine is gone too.  The cab is in okay shape, but the seats are torn.  It has toolboxes though and a all steel body, so it still has value for scrap, since I do not think they are worth money any more.
One more question:  If I use the Uno, and I get a breadboard, will I need to get capacitors?  Oh, and how would I wire this sensor?  It has three pins, and there is the same thing on LED lights.  Link: http://www.sparkfun.com/products/245
Thanks cr0sh!
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