Robotics Stack Exchange
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1500 questions
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2 answers

Magnetometer to measure high angular velocity in small object

I have to measure the frequency of a little circle in rotation. You can image this circle flying in air, because this circle can't touch anything that is not in rotation. So I can't use some simple trick to count the number of complete rotation in…
Dante Alighieri
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PID line follow with three sensors in Not eXactly C

I'm currently working on a line-following robot which uses three sensors to follow a black line. The sensors are pretty much in line and right next to each other. Right now, I'm doing a simple line follow: if on the line go forward, otherwise turn…
shea
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iRobot Create 2 and Open Interface 2 Spec not syncing up with incoming data

I have the create 2 and have it hooked up to an arduino. Almost all the commands work fine except when retrieving sensor information. If i send a request for packet 18 I get back values that while consistent don't match up, unless I am missing…
Betty_Brinn_Museum
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Are robotic pollenators being designed?

With the bee hive collapses, growers are desperate for pollenation options. Is anyone working on swarms of tiny flying robots to augment the bees? They could look for a certain color, poke around inside the flower for a moment, and move on to the…
Fred Daniel Kline
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choose ZigBee modules for full wireless mesh

What is the most common ZigBee IP Modules to create full wireless mesh mode? I know that it should be 1) coordinator and 2) router to create full-mesh But I am interesting about what kind of modules it would be better to buy by comparing price,…
Mikhail Nikitin
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Robot Navigation Feedback using Image Processing

In my project, I've successfully analyzed the arena and have detected the obstacles using an overhead webcam. I also have computed the shortest path. The path data is transmitted to the robot via Zigbee, based on which it moves to its…
heethesh
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How to connect HC-sr04 ultrasonic sensor to APM 2.6?

I am working on my final project by autonomous Quadcopter. my tasks are to make a quadcopter which should do object avoidance and it should auto land using ultrasonic sensors. any possible ans to it, how should i connect HC-sr04 ultrasonic sensor…
Hameed ullah Omari
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Is there a name for the steering style/wheel actuation used on Curiosity?

I read up on the wheels of Curiosity, and also about the suspension. But is there a name for the steering? It looks similar in nature to the front landing gear on an airplane, but searching those terms didn't turn up and answer. I've attached a…
Matt Brown
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Particle filter weight function

I am trying to implement a particle filter in MATLAB to filter a robot's movement in 2D but I'm stuck at the weight function. My robot is detected by a camera via two points, so a single measure is a quadruple (xp1, yp1, xp2, yp2) and states are the…
Khali Abd
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MMA7361 Accelerometer Always Displays Same Values

I recently purchased a 3-axis accelerometer from Amazon, and can't seem to find how it works. I've been looking for quite a while now, and haven't found any real clues. The x, y, and z values always seem to return the same values. They change when I…
Dylan Katz
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State space and control space

I would like to know the difference between state space and control space in relation to motion planning. I would like a simpler explanation.
boon
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Basic programming in arducopter

I am starting with a project using Arducopter. I am a person familiar with arduino, but seeing the arducopter for the first time. Commands codes and everything is completly different compared to normal Arduino programming. I am not getting any help…
programmer07
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Accounting for error in multiple electric motors

Our goal is to drive an autonomous robot with a differential locomotion system using two identical electric motors and an Arduino Uno (1 for each wheel). From our understanding, over time the motors can lose accuracy and may result in one motor…
Nolan Rempe
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Battery system for a robot with a RaspberryPi or microcontroller

I'm building a robot which is actually a rotating ball. All my circuitry will be inside this ball. I'm using a Raspberry Pi as the brains. Apart from Raspberry Pi, I've an H-bridge IC (L298N), a 6-axis Accelerometer + Gyroscope (MPU6050), and…
Tejas Jadhav
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Understanding the Bode Plot

I'm not sure if this is the correct forum for this question about Automatic Control, but I'll try to post it anyway. So, I've just started to learn about Control Systems and I have some troubles understanding Bode plots. My textbook is really…
Djamillah
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