Asked — Edited
Resolved Resolved by Steve G!

Powering The Ez-B V4

Hey guys, I just put together my first robot using Lego Technic and some Tower Pro 9g Micro Servos... This worked perfect as a trial and error solution because the servos are exactly fitting into the Lego parts and the material is light enough to be driven by those weak servos!

It is kind of a wobbly assembly but it is good for testing and quit forgiving when it comes to parts bumping together head-on!:D

Sooooo my question is... I experience very jerky movement at some points in my animation. Most transitions are smooth but every now and then there is erratic movement, which seems to disappear if I notch up the power send to the EZ-B from 7.4Volts to about 9Volts!

Is this a proper solution or will this damage the board? I am also using a very small and cheap 1.5A Power Supply, should I switch to a bigger one so the servos are being supported better?

Let me know so I don't damage my board!;)


ARC Pro

Upgrade to ARC Pro

Experience early access to the latest features and updates. You'll have everything that is needed to unleash your robot's potential.

#49  

I ordered that power supply, it's in the mail already! Let's see if I can get to make her move....cause you are totally right about this Dave, it should stay an ongoing project! I am having the feeling that the more I get into it the more ideas on what I would like to try out I get!:)

And naming your robot is the best part of it....I was trying to come up with a good name, and have been rolling all these know robots around in my head, also what kind of features they are having, how human or machinelike a name can be and still work!

The HAL 9000 is still my favorite for having a spaceship as a body and being a total sociopath....and obviously nothing beats the best robot duo ever, where one does not have a facial expression but awesome body language, while the other one does not even speak at all but we all all drawn in emotionally at such a great deal which makes us wonder how we can feel so much for something that is quoted by his partner as nothing but a 'nearsighted scrap pile':D

So I am sort of tending towards K8 [kate] or KD [katie] to still be sticking to a machine type name but also being able to adress the robot with a name!

Let's call it a working title for now!;)

#51  

Dot Matrix Pixel Velma Staplebot, from The Lego Movie (2014) MsTAKE Ping Iris ED, EDI, EDE (Eaddie) BL, BEL (Bell) ANI, ANE (Annie) VKI, VKE (Vickey) BNI, BNE (Bunny) JNI, JNE (Jenny) JLI, JLE (Julie) BKI, BKE (Becky) KRN (Karen) MRY (Mary) MRI, MRE (Marie) NCI, NCE (Nancy) KAT HLN (Hellen) ELN (Ellen) IDA NAN

And then there is the Robot Name Generator

#52  

How could I forget Marvin... stress

Don't blame you," said Marvin and counted five hundred and ninety-seven thousand million sheep before falling asleep again a second later.

#53  

Hey guys, I am just trying to figure out something here and I thought I'll just put it up here before starting a new topic...correct me if this is getting too messy and I should just open a new discussion!

I just got me IFTTT to get my robot interact better with me and its enviroment, I was thinking to trigger events with FitBit data or just get the robot to know it's me who entered the flat....also it could warn me to take an umbrella in case it is raining!:D

So just for testing purposes I wanted to set up a DO button which triggers a Maker Channel event....in this case just moving one servo a a testing scenario!

So I put

192.168.178.94/Exec?password=admin&script=Servo(D23,90)

to the URL field, chose GET as a method and left the other fields blank!

Am I doing this right or do I need to add this secret number, I connected to the maker channel but did not receive the number....any clues?

#54  

You'll need your public IP address, and have your router port forward from your public to private address to the port running your EZ-B web server (80 by default) amd of course you'll need the web service active in your project.

I believe the maker channel key is only needed when you want to have your EZ-B (or other device) us the Maker Channel as the "This" not the "that" in your recipe (I haven't tried it yet. On my todo list).

Alan

#55  

So if I use something like http://www.whatsmyip.org/ this would be my public IP adresss I guess....how would I find out my private ip?

So I will have to port forward public ---> private ---> port 80

#56  

Your private ip is the ip of the computer running ARC. Open a command promp and type ipconfig to find it.

You should probably set your router to always give you the same ip address (you could do the same for the EZ-B itself so you don't need to search for it every time you turn it on)

Alan