Author Topic: In search of Robotics community  (Read 376 times)

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Offline dr.diesel

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In search of Robotics community
« on: February 20, 2020, 04:24:56 pm »
This might be a long shot;

Anybody aware of an open robotics community/project with something similar to:

 - Github like/style open source where all members can troubleshoot/add new features etc
 - Fairly standard robotics hardware implementation.  Not meaning available kits are a requirement, just everybody uses a Pi and X servo controller, sensor subset etc.  Something where the user hardware is similar enough to make most collaborations useful to the rest of the group.
 - A few hundred bucks can get you in to game.
 - Not tied to Windows as several of the interested party are Mac and Linux.
 - Not academic, but these are high school computer savvy students looking for a long term project on their own.

Anything similar to this exist?






Online RoGeorge

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Re: In search of Robotics community
« Reply #1 on: February 20, 2020, 04:51:03 pm »
Yes, there are a few ways to do that already.

Try ROS (Robot Operating System), free, open source, Windows, Linux (probably Mac, too, IDK):


Follow the tutorials to do things like that (demo at minute 9:55, the robot following a blue ball):


 :)

Can do much more, has a gazillion of features, including robots simulation if you don't have any hardware.  Any robot can be added to ROS, including DYI ones.
« Last Edit: February 20, 2020, 04:52:41 pm by RoGeorge »
 

Offline dr.diesel

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Re: In search of Robotics community
« Reply #2 on: February 20, 2020, 09:05:49 pm »
Thanks, I had a much different understanding of ROS, off to research I go.


Offline Mechatrommer

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Re: In search of Robotics community
« Reply #3 on: February 20, 2020, 11:36:02 pm »
- Fairly standard robotics hardware implementation.
there is no standard robotics hardware implementation imho. those that are claimed to be standard is only for kids and thats ok if you want kiddish thing. in another part, robot is a small wheelers running about with its sweeper under its stomach but no hand. on another part, robot has complete torso, pelvic, hands, legs and head much like human anatomy. on the other end, robot is just a few degree freedom arm but lifting and rotate cars about. so i guess it will be difficult to come up with generic OSS FW for every robot. things like PID control, dead reckoning, inverse kinematics books are the things that are still "open source". so which robot you are interested?
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Offline dr.diesel

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Re: In search of Robotics community
« Reply #4 on: February 21, 2020, 01:09:29 am »
Yeah, I didn't mean to imply a global standard, just something of that particular project, to make it easier to get up and running.  Hard to get these guys interested in a project when their pretty green and have nothing to play with.

I'll spend some time with ROS this weekend, perhaps that will do the trick.
« Last Edit: February 21, 2020, 01:18:21 am by dr.diesel »
 

Offline Mechatrommer

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Re: In search of Robotics community
« Reply #5 on: February 21, 2020, 02:12:41 am »
LEGO Mindstorms EV3 is few hundreds bucks. you can still find older NXT used and cheaper in ebay. with mindstorm system, you can build a robot up within few minutes after unboxing, many examples in youtube you can choose which mechanic you prefer. rumba? bipedal? 2 or 1 wheel balancing? or simply an "industrial" arm. with mechanics are taken cared off within minutes, you can concentrate on programming part to learn the core-heart content of robotics algorithm (google is friend too) it comes with sucky graphical chart style EV3 programming IDE, but 3rd party ROBOTC (et al) is neat, simple and golden. mindstorms may looks childish, in fact it meant for child and evolved from lego child world, but its been used in university and serious robot builders to learn and developed the core part of a particular type of robotic system, and saw many tournament events across range/level of students/pro. once the algortihm is fixed, it can always be transferred to more specialized hardware, even arduino based. with other OSHW system, besides time and skills needed to assemble them (motor, driver,gearing etc), they are fixed, so when you are done with it, trash it goes and you have to buy another system, could be steep learning curve for beginner too. but if you are lean to that type and copy pasting fancy object recognition code is fun to you, nobody can stop you. ymmv.
« Last Edit: February 21, 2020, 02:28:44 am by Mechatrommer »
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 


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