Maintenance notice:
These forum archives are read-only, and will be removed shortly.
Please visit our forums at their new location, https://www.evilmadscientist.com/forums/.
Windell Oskay
About
- Username
- Windell Oskay
- Joined
- Visits
- 294
- Last Active
- Roles
- Administrator
Comments
-
You do need to use the V= I * R formula, in almost all cases. The exception-- the only case where you do not --is when the forward voltage of the LED is greater than the voltage source you are providing (for example, a blue or white LED driven fro…
-
Hi Thomas,I see that you've sent a duplicate request on this issue by e-mail. If the servo motor does move, but in one direction only, that does sound like it's broken. We'll follow up by e-mail about sending you a replacement. -Windell
-
@Todd,Yes, Sparkfun is one of our distributors-- Please use the contact form on our website, and we'll ship you a new motor. http://shop.evilmadscientist.com/contact
-
Hi Ragnar,You certainly do not need any review to post code. We have not implemented this in the main trunk of the code because the command query was added in one of the newer firmware versions-- not every EBB supports it with the firmware that it…
-
Yes; a damaged motor, or (perhaps more likely) a bad wire on the motor. Carefully check the wires, to see if one of them looks like it might be pinched or broken, to see if there's an obvious way to fix it. If not, you'll need a replacement motor.…
-
I would agree with all of those suggestions. Check to make sure that you're using the right power supply (usually 9V, 1.5 A), and, I'd be curious if you could say whether the egg motor is acting the same way.
-
It's straightforward, but you should use the method described in the article: Start with the current and voltage, and work forward to the resistor that you need. The mAh rating of a battery should only come in as a secondary consideration. That r…
-
If you didn't go to the Layers tab, then that would explain the situation.
-
Jim,Is there any chance that you changed the active tab back to the first tab, "Plot," before clicking Apply? It will only pause between layers if you click Apply while the "Layers" tab is active. -Windell
-
Sorry for the slow reply here-- I'm glad that we were able to help out through e-mail. And, thanks for the tip on the pen-- we'll add it to our list of recommended pen choices!
-
Hi Paul,Thank you so much for giving that a try, and I am sorry that it was not much better of an experience. It sounds like 0.7.5 is a mixed blessing in terms of interface, and additionally does not fix the main issue. Version 0.7.5 is still "pre…
-
If you haven't yet been able to send a signal or reprogram the clock, it could be the case that there is a physical connection problem. You might consider trying to run our example code from within Processing. That code is tested and works well, an…
-
From the docs, you need to send a full 12 bytes of data: "A0HELLO....." to indicate both the text, and the decimals to display.
-
The new version of RoboPaint, version 0.7.5 has been posted, and you can give it a try if you like:https://github.com/evil-mad/robopaint/releases/tag/v0.7.5-2014.03.08
-
The new version of RoboPaint, version 0.7.5 has now been posted. Would you please give it a try? https://github.com/evil-mad/robopaint/releases/tag/v0.7.5-2014.03.08
-
Well, I'll be a monkey's uncle: The Y-direction manual walk in Inkscape totally cannot go backwards towards home! I have no idea (1) how we missed this or (2) how it managed to survive out there so long without anyone else reporting it first. So (1…
-
From what you describe, it sounds like your hardware is actually working, so it could well be a bug in that software-- please let me check and see if I can reproduce it here.
-
Hmm. That's not good. The LEDs in any given column are all wired together (in parallel) at their anodes (high sides), and then the LEDs in any given row are wired together (in parallel) at their cathodes. Thus, if a full column were out, I'd susp…
-
That certainly suggests that it's a bug in Robopaint, not a hardware or firmware issue. (Is that good news?) We should have that new version of Robopaint for you to try in the next day or two.
-
OK--- great-- progress! Please let me know what you find with the cable, and we'll get you taken care of.
-
Thanks-- there are some newer versions, but we would would recommend sticking with the version that it came with for the time being. At some point in the future there will be a real "recommended" update, but for the time being, the original will gi…
-
It sounds like (for whatever reason) the extensions are actually not installed correctly. I do not recall hearing of this problem occurring on Windows before. I'd suggest unplugging the Eggbot from your computer until the computer (on its own) is re…
-
Is that the firmware that came with your WaterColorBot? (If so, what color is the EBB?)
-
Hi Paul,I'm sorry to hear about the trouble. I'll ask the author of Robopaint to check in on this. But, I'm also wondering if there could be a hardware problem at the root. Have you tried using RoboPaint RT or the Inkscape extensions for WaterColo…
-
Hi Ray,Is it the case that (A) you sometimes get a good connection, but lose it when the cable is wiggled, or (B) you never get a good connection, but always get the "no module named serial" error? If (A), you might consider trying a different USB c…
-
I'm pretty sure that a motorola phone charger can't supply 550 A of current. As for regulated, I would *guess* so. Does it have a roman numeral in a circle, say "IV" or "V"? If so, that would indicate that it's a modern switching (regulated) suppl…
-
I'm not sure what power supply that could be, but please make sure that it has *regulated* 5 V output. That is necessary for proper operation. As for the issues that you are describing, it sounds like there may be multiple soldering problems. Doubl…
-
It sounds like you're at a stage where you could take the data generated by the FFT program and make it so that you could put its data-- instead of the data from the camera --in the data array that gets sent (1) to your screen and (2) to the Peggy i…
-
You said in the other thread that you had this working now. Do you know what the problem turned out to be?
-
Check step 23: http://cdn2.evilmadscience.com/KitInstrux/meggyjr/html/index16.html
