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Robotics Beta

Questions tagged [driver]

The tag has no usage guidance.

18 questions
Info Newest Frequent Votes Active Unanswered
1
vote
2answers
94 views

Best way to estimate velocity of motor with encoder

I'm designing a PMSM controller with the motor has an optical encoder, so I can get position information from the motor. But how to measure the velocity of the motor. Now, my design is to calculate ...
1
vote
1answer
93 views

Controlling a dc servo with serial communication

I am going to buy this motor :- https://robokits.co.in/motors/encoder-dc-servo/faulhaber-coreless-17w-encoder-motor-120rpm-pid-dc-servo-drive?zenid=im3bp6grppt2f2ofdo2r6pq5c2 The datasheet of its ...
0
votes
1answer
29 views

controlling industrial servo with pc

these days I'm learning Orocos patched with xenomai. Although I have found the ways to create a hard real-time control software, I didn't find any information on how I should use this to control the ...
-2
votes
1answer
435 views

L298N driver takes too much current

I'm using L298N motor driver to spin stepper motor (42BYGHM809). When connecting it to batteries(2*9v), the batteries heats up after few minutes and stop working, and when connecting it to power ...
1
vote
0answers
22 views

Issues with the dual VNH2SP30 motor carrier and 131:1 metal gearmotor 37Dx73L mm w/ 64 cpr encoders

For a while now I have been trying to build my own robotic platform, kind of like a turtlebot. However, I have kept running into an issue with controlling the motors. My main controller for sensor ...
1
vote
3answers
3k views

How to reduce the DC motor starting current?

I am making a bot with 4 motors with a stall current rating of 11.7A. I was using 4 separate motor controllers which has a peak current rating of 20A to control each motor. But when I gave power to ...
0
votes
2answers
64 views

DC Motor Control

My project requires a DC motor for mobility, very similar to an RC car. If precision isn't critical, can I use a solid state relay instead of a motor driver? If the vehicle moves an extra inch on the ...
3
votes
0answers
105 views

Maximum ball screw speeds

What is the maximum rotational velocity of miniature ball-screw (diameters up to 12mm) for approximately 1000 thrust cycles, and which type/brand would that be, if the speed is limited by the ball ...
0
votes
2answers
69 views

Driver Board to Control 16 Brushed DC Motors

I am building a humanoid robot with DC motor actuated fingers. There are 16 brushed DC motors to be position controlled with help of hall effect sensors implanted at the joints of each fingers. I need ...
0
votes
2answers
481 views

Eliminating Electrical Noise from my motor driver

Background: I am using an Arduino Mega connected to a RoboClaw 2x60A motor driver. I asked this question about the system, but I have since narrowed the scope of the problem. I tried adding a bunch ...
1
vote
1answer
114 views

Comparison of the efficiency of DC motor current limiting / control methods?

I am using the wheels and motors of an RC toy car as a simple robotics platform. The car has 2 motors, one drives the back wheels, the other steers the front wheels. The steering motor is stalled by ...
1
vote
1answer
180 views

A robotics computer with graphics card, lots of computation power, battery, no screen, no keyboard? [closed]

I'm working on a robotics platform and we need an on-board Ubuntu machine to run ROS image recognition. Does anyone know of a good set of computer hardware that has NO screen NO keyboard Built-in ...
2
votes
1answer
665 views

ROS NavStack with Skid Steering robots

I am migrating from a differential drive design to a skid steering design for my robot, and I want to know how easy would it be to use the NavStack with skid steering. Would there be any problems in ...
2
votes
2answers
238 views

Software libraries for parsing sensor data

What software libraries are there for assisting the general problem of parsing a stream of sensor data? We use various sensors like LIDARs and GPSINS units that provide messages in proprietary binary ...
1
vote
2answers
180 views

Motor driver selection

I am building a 2 wheel robot to carry 7KG of load. I used this link to get the torque required for each motor which is 11Kg-cm. So I choose 2 of these motor which has 36Kg-cm(2x more) torque. I ...
13
votes
5answers
30k views

How to convert vertical motion to horizontal

I am interested in using this miniature motor (Squiggle Micro Motor) to create very tiny horizontal movements. However, due to very limited space, I can only place it vertically within my project. ...
18
votes
4answers
18k views

How can I use the Arduino PID library to drive a robot in a straight line?

I would like to create an Arduino based robot with 2 wheels, quadrature encoders on each wheel, a H-bridge driver chip (or motor controller) and a caster. I want to use the PID library to ensure the ...
4
votes
1answer
774 views

Connecting a 6 pole motor to a motor driver?

We are trying to power this motor with this motor driver , using a 11.1V 2.2Ah lithium-ion polymer battery. (We're in over our heads with this and really need the help) We checked with the company (...