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41
I am currently using the attached 2DW Robot Chassis. 2 geared DC motors are used. I am controlling the motors with an Arduino Leonardo and a motor driver that is essentially identical to Adafruit's Motor Driver v2.0. The issue is that when I supply power to the Arduino via either the USB cable (attached to my laptop) or via the power jack (with a 12V DC supply), the motors do what my code tells them to do. However, when I supply power to the motor shield via the power terminals using either 5, 6, or 8 AA batteries, the motors seem to just do whatever they want. They start by jerking around a little, then run continuously until I disconnect a battery. I have the VIN jumper attached to the shield, and the Arduino power LED says that it is on; it just doesn't seem to be transferring the proper instructions, but it does when I power the Arduino and not the shield. In all cases, the power LED on the shield is on.

Could anyone supply any insight?

Thanks.
42
Misc / MeccaNoid does-Star Wars-The Force Awakens-The Harder Ones
« Last post by MeccaNoid Madness on July 26, 2016, 09:02:08 AM »


I did this in LIM mode, this was longer then 2 min., so I had to string 2 LIMs in the video. I changed the voice to +30% pitch to sound more like MeccaNoid.

This was fun for me, I love Star Wars.

~~~~~~
SPOILER - if you did not see the movie, click on this
~~~~~~


43
Robot Videos / Re: Rebirth of the ER1 Personal Robot Video
« Last post by kevinvr on July 24, 2016, 10:06:21 AM »
I have used it at school to show my students facial recognition and various other moves it can make.  I have also used lego mindstorms in my classes.

mainly I let it run around at home :)
44
Have an upcoming robot or quadcopter build which needs carbon fiber components? Broke your existing carbon fiber panel, and want a replacement locally? Thinking of modifying your vehicle engine mounts and need high strength low weight carbon fiber mounts?  For all your custom plate needs in carbon and glass fiber composites fill in this form where you can upload your drawings to us,  and have a high quality carbon fiber part machined and ready sent right to your doorstep. All you need to do is fill this form, and await our quotation. Once approved we guarantee to have it ready and shipped in a week! Also to help you with the options listed in the form is a document which you can go through, and a costing sheet for you to get an idea of the costs involved!
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45
Only a week left to grab the New Smart Robot Kit --- Fireduino. Only available on Kickstarter for another week.

Fireduino is an integrated version of 2XArduino along with audio, video and other modules. The All-in-one feature allows you to build the best, smartest and perhaps the most expressive robots nowadays.

To know more click below,

https://www.kickstarter.com/projects/1771382379/fireduino-dual-core-arduino-board-more-powerful-an#rd
46
Electronics / Linear Induction
« Last post by jcsymmes on July 18, 2016, 08:36:05 PM »
Has anyone experimented with Linear Induction style motors for Robots specifically robotoc wheels. Curious about the posibilities of them and curious if its a clever idea but impractical.
47
Electronics / Re: Good durable servo for product
« Last post by Kyle Berezin on July 13, 2016, 06:39:31 PM »
The manufacturer stopped responding to my emails after I sent them our failure analysis document on the motor that started on fire. So there is no way I am going to send these out. The ES08MA II from EMAX is a fire-hazard, and that puts me back to square one. Anyone know of something safer?
48
Electronics / Skin sensors
« Last post by nilrong on July 13, 2016, 01:21:04 PM »
I am planning to create a robot which might be like a spider can scrawl on surfaces and able to sense human skin. Legs can be around 3mm size and tip of the legs would work as sensor.

Consider me as beginner and looking for any kind of guidance. First thing I am looking for is what kind of sensor be used and will it be possible to have it a size around 3mm.

Thanks Riaz
49
Electronics / Re: Good durable servo for product
« Last post by Kyle Berezin on July 13, 2016, 02:45:02 AM »
We had one start on fire, how common is it to not have a thermal shutdown on a servo?
50
Misc / Re: Isaac Asimov: The Three Laws of Robotics 1942
« Last post by gtabasso on July 12, 2016, 10:56:09 AM »
You may enjoy reading The Silver Metal Lover by Tanith Lee.
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