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16  Forum 2005-2010 (read only) / Troubleshooting / Re: standardFirmata example sketch too big ? on: November 15, 2009, 06:02:33 pm
Or choose the right board, of course! smiley Goto Tools, Boards, and if you have a Atmega328 on your board, then choose the top, if you have the 168, click the 168!

Yeah, atmega8's aren't the best place to start, you lose out on alot, but they're good for fairly basic systems.
17  Forum 2005-2010 (read only) / Troubleshooting / Re: serial communication between two lilypad boards... on: November 14, 2009, 03:00:21 am
Don't forget that with SoftSerial, if you're not executing "read", you won't see anything, so a delay in "loop" on the receiver board is a no-no.

You didn't say if you changed your code or not.. what he's saying is that you send something... but while one is sending, the receiver may be on it's 500ms delay, so when it comes back it'll just read... nothing? (I don't think SoftwareSerial uses a buffer, I could be wrong)

Try using NewSoftSerial (google it), it's just an upgraded version of SoftwareSerial that offers faster speeds and I *think* buffering. (I'm too lazy to look for it)

Maybe you should try getting the Hardware serial working between the two before you try software versions?

This won't work with SoftwareSerial but it will work with the regular serial, and possibly NewSoftSerial:

if(Serial.available() > 0)
myValue =;
Bascially, it won't read the Serial port unless there is data to be read. (So you don't just read the same thing over and over, or trying to read while nothing is happening, resulting in garbage)
18  Forum 2005-2010 (read only) / Troubleshooting / Re: serial communication between two lilypad boards... on: November 14, 2009, 01:35:35 am
You didn't mention anything about the Grounds? You must connect the ground of each lilypad to eachother to complete the circuit.
19  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduino LED Exercise Error on: November 05, 2009, 01:17:19 pm
I haven't used the Freeduino before, but does it have auto-reset when uploading? you may need to push the reset just as you're uploading..

Another thing to check, is to make sure that the jumper is on USB, so it's getting power from the USB and not trying from the power jack...

Other than that, make sure it's the right chip.. like they said.. make sure it's the Duemilanove with 328 selected.. and yup, try reset after you push the upload button.
20  Forum 2005-2010 (read only) / Troubleshooting / Re: 1000 booleans? on: October 12, 2009, 09:05:27 pm
Sorry I don't have any useful info, but I'm curious, what are you using these 1000 booleans for?

I'm not sure how your program is going to operate, but it seems like there would be an easier way. (I could be totally wrong, I'm just so lost on what you'd use 1000 of em for:D)
21  Forum 2005-2010 (read only) / Troubleshooting / Re: Core file for Illuminato? on: October 12, 2009, 08:27:30 pm
Well good deal.. I was thinking about purchasing one.. but meh!

They're fairly sexy, I love the connectability.. but damn, not for compatibility lol, almost worth just moving to XMOS boards.. at least they're covered fairly well, and have a fairly active forum. (but they're pretty over-powered for simple projects, 400MIPS per board!)

But I <3 me arduino's!

You can try e-mail them, I believe it's only a few people running the site so not really sure how well that'd work. smiley
22  Forum 2005-2010 (read only) / Troubleshooting / Re: LED Will Not Stay On on: October 08, 2009, 05:52:02 pm
Sorry, but what LED are you talking about?

Power led? TX, RX, the led for pin 13?
23  Forum 2005-2010 (read only) / Troubleshooting / Re: Problem uploading sketch on: October 03, 2009, 04:18:42 pm
Yeah.. but, you can do that. Go look at a Pro-mini, it's some fun soldering!

I'm sorry, but this should be in the Hardware selection. You might get more answers there.

I've never seen that error, you do have the right board selected right? And what do you mean by "Spamming the serial port?"  Just printing to the Serial port one after another, without a delay?
That wouldn't lock it up, but I've never had the Flash error.. so I'm not really sure what to say! Have you tried Manually pushing reset when it's uploading?

Something else that took another member a while to find, it came up with the speed error, like you had the wrong board selected.. but turns out his Crystal or Resonator fell off, so it kept giving errors.

Just things to check for, good luck! (And move this to the Hardware selection!)
24  Forum 2005-2010 (read only) / Troubleshooting / Re: A problem with my Arduino Serial Board on: September 26, 2009, 06:35:51 am
If you've updated your IDE recently, make sure you change the board back to the correct board under Tools.

Also, I'm not sure if the serial board you have, is using the auto-reset, so you could also try pushing Reset as you're trying to upload the sketch.

But chances are you just have the wrong board selected, also make sure it's the correct COM port. smiley-grin
25  Forum 2005-2010 (read only) / Troubleshooting / Re: Duemilanove seemingly bricked after I just started on: September 24, 2009, 11:15:23 pm
Plugging it into another USB drive will more than likely be your problem. Especially if you've already checked the BOARD and COM port under TOOLS.

But, then again, if nothing was connected.. wouldn't it say "COM4" or whatever, not found. (I answered my own question... it does)

So it's trying to connect to the board you selected if it's giving you that error, are you SURE you've got the right board selected? (Keep in mind, it will be the same COM port if you change the USB port, so you may want to check that as well)

Other than that, I'm not really sure! Other than what Mr Mellis already pointed out, you can't have anything connected to TX or RX pins.

Best of luck, and welcome to the wonderful world of Arduino!
26  Forum 2005-2010 (read only) / Troubleshooting / Re: ArduinoBT --> SET CONTROL MUX 1, cannot upload on: September 17, 2009, 09:07:48 am
I'm completely oblivious when it comes to the Bluetooth version of the Arduino, but I've got that error plenty of times. It sounds like you're trying to upload with the wrong board selected.

But if you need to push a reset button, just click the upload button, then push the reset button. (Keep in mind, the first time compiling when I first open the IDE, it takes longer than other times. So compile first before uploading.) Once you push the upload button, you have I believe about 3 seconds to reset the board.

I did read in a previous post (I'm sorry I can't find it:X) about a person who was trying to change the speed of the bluetooth connection through some files, and ended up with the same error. He had to use the AVR-whatever they're called programmers to correct the speed. (I'm sure there's an easier way, considering you can use one Arduino to bootload another.)

I hope some of this helps, and when you do fix it, please do explain so if anyone else has the same problem, they can refer here! smiley-grin

Best of luck!
27  Forum 2005-2010 (read only) / Troubleshooting / Re: open serial-terminal triggers an reset on: September 14, 2009, 05:04:58 pm
I'm with chiefcrash on this, I got XP and using 0017.. but anytime I open up my Tools, and scroll down to board.. it resets then as well. If I have two boards connected, one will keep resetting until I click one of the boards.

Then once I open up the Serial terminal, both arduinos reset again.
It's not a huge issue.. I generally reset anyways, mostly for debugging.
28  Forum 2005-2010 (read only) / Troubleshooting / Re: analogWrite LED brightness on: September 10, 2009, 05:16:29 pm
It really depends on the LED forward voltage and how many MA it uses. You can find that information by looking at the data sheet.

But if I don't know what LED I'm grabbing, I'll usually use a 1k resistor. But some of the LEDs I have use only as low as 100 ohms, but they're actual "high brightness" LEDs.

You can always use Ohms law to figure out the resistance you need.

(Supply Voltage - Forward Voltage) / Forward Current
so I just used one of the LEDs I have for an example:
(5V - 2.2V) / 20MA =  140 Ohm resistance

But if you don't know values, I'd say 1k would be "safest" smiley-razz

And I don't know anything about the Multimeter and PWM.:X
29  Forum 2005-2010 (read only) / Troubleshooting / Re: analogWrite LED brightness on: September 10, 2009, 04:11:33 pm
What's the size of the resistor you have on your LED?

I'm guessing that's going to be the biggest factor here. Could also be just that your LEDs aren't super bright? Hard to say. smiley-razz

It's not your code, that parts fine. So it's hardware somewhere.smiley-razz
30  Forum 2005-2010 (read only) / Troubleshooting / Re: WinXP does not recognize Diecimila, on: August 14, 2009, 01:01:43 am
What happens when you plug the board in? The first time it should have came up with the USB Serial Converter like you suggested, but my other computer didn't need to install anything to get it to work. I'm guessing you tried in the IDE?

Sorry if some of these are obvious, but some of the reasons my board won't show:

I have 4 USB ports, my board only shows up correctly on 2.

I have the wrong COM selected in the Arduino IDE (along with the correct board! both under Tools in the Arduino program)

The first installation on my computer, it installed the wrong drivers (my computers mentally retarded sometimes) I had to un-plug the board, uninstall, and re-plug it in, and when it asks for the Driver folder, do the advanced part, where you enter where to find it. And direct it to the windows default driver folder:

Shouldn't need any Third-Party programs to get it up and running, definitely. Sorry if it wasn't much, but that's as far as I've ever needed to go to get a board to work on my computer. (I have 2 arduinos, I use 3 different computers)

Best of luck, if this doesn't help hopefully somebody can offer their uber-experience!:D
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