Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [robotics]

This site no longer includes robotics in its topics. See the robotics stackexchange instead.

This site no longer includes robotics in its topics. See the robotics stackexchange instead.

251 questions
15
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8 answers

Microcontroller/cpu for fast trigonometry in robot?

This concerns hardware that does weighs little, because a (fat cat sized, 6 legs with 3 DOF) walking robot should carry it around. Because of that walking it'll need to do a lot of trigonometry (using matrix math or not i'm not sure yet) and this is…
Barry Staes
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13
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3 answers

Stopping drift in hovering quadrocopter

I will be building a 4 propeller quadrocopter drone at some point. I want to make it relatively easy to fly by getting it to hover still when the controls are not touched. Can someone offer some information on how I'd get the quadrotor to stay put…
Bojangles
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13
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13 answers

What can I use to detect pinpoint location (inches) outdoors?

I am getting back in to EE after some time so please excuse my ignorance. I am looking for a way to detect pinpoint location outdoors to navigate a robot for a project with my sons. Is there a low cost way to triangulate or use GPS? I am looking for…
Jamey McElveen
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11
votes
2 answers

Unit testing AVR assembly language

How do you unit test your assembly code? I'm working on a serial servo controller as part of a hexapod robot project and the code has got to the point where it's becoming complicated ;) Anyway, I'm used to using unit tests in my day job as a C++…
Len Holgate
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10
votes
3 answers

How do I measure the current flow to a component?

I'm building a hexapod robot using simple servos and I was wondering how feasible it was to measure the current flow to each servo (5-6V DC to a maximum of 0.25-1A (I haven't found the spec for the servo's stall current yet)) using, say, an…
Len Holgate
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10
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2 answers

PID algorithm implementation using computer vision

I am constructing an automatic labyrinth maze solver, and using a webcam to control my maze. Based on suggestions in other forums, I am trying to control maze's ball movement at least in one direction at the moment. So, I am trying to control my…
Sai
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9
votes
2 answers

Methods of filtering noise caused by DC brush motors

I am looking for any information that would help me reduce the power rail noise and EMI of DC brush motors. I am building a robot that is powered by 2 x 250 W 24V DC motors. Thank you in advance
Kamil Zadora
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9
votes
1 answer

How to use an ESC

I'm new to RC related modules. Today I got my Hobbywing's Skywalker 20A brushless esc. Manual is here. I also have a brushless outrunner motor (HL3512) I don't have any device to program the esc's (even the seller hasn't mentioned about such…
David
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9
votes
3 answers

Measuring force developed by a robot

I've been playing around with a Lego Mindstorms NXT robot, gearing it for speed and power. To my dismay, when geared for power, it wasn't any harder to stop than when geared for speed -- I suspect that it doesn't have very good traction (as there…
Clinton Blackmore
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8
votes
9 answers

Robotics Events

I'll be putting on a robotics competition in a month, and would love to see a list of different sorts of events I might be able to run. What are the types of competitions you are aware of, at all levels of complexity, suitable for the novice LEGO…
Clinton Blackmore
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8
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1 answer

What are good materials and associated tools for a robotics hacker?

What is good stuff to quickly build small hobby robots? What sorts of tools do I need to work with those materials? Let's assume we already have the electronics parts listed at "What is a general set of components for a robotics hacker?", and focus…
davidcary
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8
votes
2 answers

Resources to understand robot locomotion and Gait functions

Recently I have been watching Robert Full's talks on TED. He has some obscenely interesting works on robot locomotion. This has intrigued my curiosity and I have been trying to understand his works. I have tried to read many papers on these type of…
Rick_2047
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8
votes
3 answers

Nitinol: Useful stuff?

I have been considering using Nitinol wire for some experimentation as a component in an autonomous system. My understanding is that it will return to its original, contracted state when it reaches ~70°C, which seems to be capable of some pretty…
iklln6
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7
votes
8 answers

Robot picking a person from other objects

I need some ideas of sensors to use so my tank can drive towards humans and seek them out. Distinguishing them from the background. Assume the human is standing still / quitely Any ideas? looking to use an Arduino as the controller - though if…
user337
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7
votes
4 answers

Strategies for mapping an area perimeter with a mobile robot

I'd like to build a bot that when placed in an area would have the ability to find the perimeter of the area and map the obstacles present. Later it should be able to navigate to different parts of the area on demand (e.g. navigate to the NW corner…
James Cadd
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