Omnibot 2000 Project

Nonsonic

Canada
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Hi Guys,

I still have my Omnibot project just sitting for the moment, I really wanted to buy the EZB to have in an Omnibot 2000. Well today I went ahead and picked up this guy and brought him home.

Will do a work in progress post with this one and hopefully try and up date it as the project takes shape. First steps will be cleaning.

Enjoying the ride in the Jeep:

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Thanks Wayne

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#26  

Yep, I have tried another servo outside of the kit. At first it worked fine and now it doesn't work either. I can try others tonight.

I watched all of the video's even as I started, with one step at a time and they just aren't getting power. I think there is something wrong with the EZB.

Canada
#27  

Hello Nonsonic, I have been following your posts and grieve with you:) It is sometimes hard to troubleshoot over the internet, but a few suggestions...

Pick up a multimeter ASAP and confirm that there is voltage and how much on each power pin (the center pins on all ports). It should be 5v. Between the fact that your regulator is heating up so much with no load and the fact that servos started working (albeit with loose motors) then stopped makes me think of possible over voltage (faulty regulator or short) and burnout. But you need to confirm with a meter to be sure.

I have also noted that the blue light sometimes does not come on, or is very dim, when first powering up my EZ-B. I have found just quickly un-plugging and re-plugging in power does the trick. According to DJ, the dim or dark blue LED indicates incomplete firmware boot... possibly power related? as I notice mine happens more often when running a 12v source as opposed to the stock battery pack (7.5v)

Also, try to put your EZ-B on non-metallic standoffs or otherwise cover the underside... it is an open circuit board and susceptible to unintentional shorts when sitting on potentially conductive surfaces (like the battery box:))

And final idea... test each servo, one at a time on each port from D0-D19 documenting any irregularity's per port. You should be able to set up a test that will cause constant activity on all ports so that you can focus on the physical port hopping. I am at work right now so can't easily determine what control would do such, but I think I remember seeing something that might do the trick?

EDIT - Ah yes, the Multiple Servos control... config and click on Add All

#28  

Yes,

That might have been it regarding the servo's just spinning but hard to say, this was all on the first time out really. Had been careful with it, I have built computers myself so have tried to take extra care but power and voltage is not my thing I can say that. I have to learn circuits essentially:)

With that, I've got some pics for some ideas. I have been taking apart printers for an eventual build of some sort. I wanted to build a battle bot or I like those 3D printers. One of the printers I took apart was an older HP Laserjet and got some neat gears and motors but also this face place in case I need it for something.

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I planned to get a screen and do a similar build to DJ's Omnibot for just starting out. I thought the LED panel might come in handy for the upper area that a display may not fit in and or use it for some sort of second display area.

I think i'm going to get help with the board, I am not an electronics guy for soldering etc, I hope to try with some arduino but i'm not ready to start soldering yet. If things go good, I would like to some how do something with this Roboraptor I picked up for $10.00. I got this one and the Robosapien both with remotes for $20.00

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Below is my computer set up is separate from my " Bat" cave where my robot projects are, this is part of my computer set-up. I7 gaming computer, a Mac mini and below is an older PC running Ubuntu 12.04. Above my PC i have a Kinect that I am messing around with trying to learn and maybe integrate into the Omnibot 2000 : )

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Thanks!

#29  

I will make a how ton solder video just for you nonsonic:)

#30  

I forgot where i saw it, but D.J. has a trouble shooting video just for the EZB. Go through the steps and see if it is at least working. after that, you can tackle the servos.

hope that this helped,

MovieMaker;)

#31  

Seems to connect just fine still, just not working with the servo's.

I'm good Josh on the soldering:) thanks!

I'm sure it's easy to do it as I've done it in the past and done repair to some copper pipes in the house. Just not about to solder circuits just yet until I need to.

#32  

Yea its harder than copper pipes. To do it correctly at least lol. So how are you going to hack this robot without cutting wires and soldering?