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Questions tagged [robotics]

use this tag for questions about robotics.

From Robotics - Wikipedia:

Robotics is the branch of mechanical engineering, electrical engineering and computer science that deals with the design, construction, operation, and application of robots, as well as computer systems for their control, sensory feedback, and information processing.

Today, robotics is a rapidly growing field, as technological advances continue; researching, designing, and building new robots serve various practical purposes, whether domestically, commercially, or militarily. Many robots do jobs that are hazardous to people such as defusing bombs, mines and exploring shipwrecks.

140 questions
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Using more than one Ping Ultrasonic Range Finder

I have done various applications with the Ultrasonic example project but it is always using one pinger. I'd like to make a scanner resting on a servo sweep but to reduce sweep time use more than one censor. the documentation is rather basic ping…
alexmac
7
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5 answers

What is the best technique to design a 20 push button circuit

I will be controlling a robot with more than 10 motors which means I'll need 2 buttons each to control moving forward and backward. My controller is an Arduino mega. Is 1 pin = 1 button the best solution here? Or should I use another IC for this?
Julius
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Which reflectance sensor array for a line following robot?

I'm working on a line-following robot with my son. We've found a sensor array on Robot Shop that will help us but .. there's two and I'm not sure which will be the best for us. The difference between them, as described in this PDF is "The QTR-8A…
RickMeasham
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How to make an electronic suction cup?

The uArm is a robot arm with a suction cup (or gripper). I'd like to try to make just the suction part of it, and I'm wondering what components I'd need? By the looks of it, I'd need a hobby vacuum pump, but these seem few and far between on UK…
Danny Beckett
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2 answers

Interfacing Logitech Joystick to Arduino and interrupt a while loop

I am working on a project of a robot arm. The joints are made of servo motor. The basic function can be describe as: The robot arm (the servos) were moved manually by the Logitech joystick. The user could press a certain button to remember a…
John Keane
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4 answers

How useful could the Arduino Yun be in computer vision in a robotics project?

I've recently ordered an Arduino Yun and several other components to begin on a small robotics project (based on an old 4x4 RC Truck). Although not mandatory for what I'd like to do, I was wondering how feasible it would be to mount a small camera…
cnsumner
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Absolute noob looking for troubleshooting help

My 10-year-old son went to a "Robotics Camp" and came home with a non-functional Arduino robot. I figured it shouldn't be too much trouble to get it working. He swears he had it operating at the camp, but our best efforts notwithstanding, we were…
T1M0THY
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2 answers

How can I control 4 DC motors with an Arduino?

In a few months, I am planning to construct an Arduino robot with multiple sensors etc. I will use an arduino mega and a 4wd chassis like the one here: Chassis. The chassis uses 4 DC motors. I was planning to use a motor shield, but I realized that…
shurup
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What are the main differences between the Arduino Tre and the Intel Galileo?

I'm looking to find a suitable board for a robot I'm developing (it'll involve computer vision, else I'd be using my Arduino Micro) and I've come across two possibilities: The Intel Galileo and the Arduino Tre. Now as I understand it, the Intel…
Thomas Russell
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Arduino Lego Robot

I'm currently developing a Lego Robot, the mindstorm series to be specific. I want to replace the lego NXT brick with an arduino, maybe an intel galileo in the future. How do I establish connections from the arduino with the lego sensors? Also, I…
Subhaac
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1 answer

Pulsein() function blocks other tasks from running silmultaneously

I am using a zumo bot with a reflectance sensor used to follow a black line. I want to use an arduino to make the zumo bot stop once it gets a certain distance from an obstacle. I have an ultrasonic sensor (HC-SR04) which ive connected to the…
Princess Wilson
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Run Servo when detect object on OpenCV Python

I want to connect OpenCV (Python) with arduino Uno when it detects a tennis ball. OpenCV code: import numpy as np import cv2 import serial face_cascade = cv2.CascadeClassifier('tennisballdetect.xml') cap = cv2.VideoCapture(0) while 1: ret, img =…
sayem48
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LiPo batteries with L298N controller

I built an avoidance detector robot from this kit. When I drove the robot, the two motors performed unequally, so I tested replacing the four x 1.5 AA battery pack with a 9 volts battery. It did the trick. I realized, after having read around…
nitech
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1 answer

How to convert a String number Into a int value?

I want to convert a string into a int value. in my real code, I receive a string "Slider 255" the number after slider changes from 0 to 255, so I want a int value to be equal to that number. This is a small example of the code: #include…
Diego MEstre
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2 answers

Detect movement on moving robot? PIR Sensor

I am working on a human following robot project and I am trying to achieve this with 1 Ultrasonic sensor that makes sure the robot won't crash into something and 3 PIR sensors that will detect human movement. The robot has an Ultrasonic Sensor and a…
Imayan
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