Let's Make Robots!

motor controller

Needing Assistance with High amp motor controller for Arduin0

Hello everyone. i am new o the word of motor controllers. 
I am trying to make a 4wd robot capable of going offroad. It will be controlled with my arduino MEGA and XBEE. I have almost everything in check except for the motor controllers.

The motor controllers i have found  are dual channel controller and i intend of controlling 2 motors per channel. 
The specification of my motor controller is as shown below:
http://banebots.com/p/M2-RS540-120

I have several choices i could buy:

Interfacing motors from RPi with PicAxe

I've successfully hooked up the my RPi to my Picaxe for interfacing through this link:
http://www.instructables.com/id/PICAXE-Raspberry-Pi-ADC/

I can successfully return the variables from B1 to my RPi.
However, I'm new to Python and  basically want to get started by writting motor control.

Wild Thumper Controller - Packaged Software has Issues

If you are trying to used the Dagu motor controller with their Wild Thumper vehicle, which is great, but can't get it to respond properly to a RC tranmitter, make the following changes to the software. Get off D0 and D1 and move to D9 and D10, which are PWM channels. You don't want a PWM repetative pulses (every 22ms from a Spektrum transmitter) to clobber your serial interface when loading programs. This is why you get a sync error from the compiler if you follow the manual.

Arduino Uno + Dagu 4 channel motor controller - power issues?

I have an Uno controlling a 4 channel Dagu motor controller with encoder support. Got this a month ago. (It's the red PCB version).

Although it works, I have read that I shall not power the motors before powering the control logic.

But does that really mean that if the controller voltage dies out in the field, and there's still juice in the motor batteries, the Dagu controller will burn ?

I saw OddBot said this might be the case, at least if you powered it up in the wrong order.

Microcontroller + Motor Controller

 

Now that I am done seeking new Discoveries...

I just Realized that I really need to Change a little bit on my new Project

Imagination is UNLIMITED but Reality is Limited nowadays

As Usual I'm here Again to ASK QUESTIONs and BEG for your Kindness HELP

May all your Answers are very useful

Here we Go my Questions are

1st Question :: I use Arduino UNO and a Quad Motor Controller to control my 4X DC geared Motors. Do have any Idea what are the Possible Problems that I might encounter...?

Motor Controller

Aahhmm...Behalf of my Majestic Awesomeness, 

I would like to ask a QUESTIONs that bothers me always when thinking about the Purpose of Motor Controller. 

I was reading about the Lessons in How to Make a Robot in http://www.robotshop.com/gorobotics/articles/how-to-make-a-robot-lesson-1 

then I found out that we need Motor Controller in order to control the Actuators.

Micocontroller and Motor Controller must work together in order to operate a Robot.

 

bi-directional speed controller

Hi all.

I am really new to robotics, and only just recently got my arduino uno. i've played around a bit here and there to learn how to control servo's and such, so i figured it's time for me to build my first robot. but in the design, i've come across a few problems:

Parallax HB-25 Motor Controllers and Braking

In a robot my friend and I are building we are using 2 Parallax HB-25 Motor Controllers to control 2 motors.
The problem I am having is making the motor brake (as in freeze robot from moving).

RECOMMENDATION FOR MOTOR CONTROL ---

 

SOLUTION TO CONTROL 10 MOTORS WITH ENCODERS (OPTIONAL?).

6 MOTORS TO DRIVE THE ROBOT.
4 MICRO MOTORS TO PIVOT THE WHEELS.


PARTS LIST:

1. Arduino Mega 2560
2.
3.
4.
5.

 

Mapping of Pins on the Dagu Spider Motor Controller

I made a mapping of the Dagu Spider Motor Controller pins. The cells in red are what you see on the board itself. Other info has been placed adjacent to those cells for easy reference of functions, alternate names etc.

 

Curiously I am wondering if there is actually a typo mistake on the board with one of the pins being labelled as "TXD1/D1" when it should be "TXD0/D1" instead. Is that an error?

 

Please give feedback on the accuracy of the mapping.

 

PRACTICAL (and SAFE) H-BRIDGE for MOTOR DRIVE

I have noticed several people using an H-bridge schematic (commonly circulated on the web) that will work, but if both inputs are high at the same time, can throw a short across the motor power supply.  As long as they never let that happen, these circuits will work, but I consider it unsafe. Since many people here have different levels of expertise in both hardware and software, it is better to use an arrangement that prevents accidentally shorting anything.

Rover 5 - 4 Channel Motor Controller: PWM Frequency

I just got hold of OddBot's Rover 5 platform and the 4-Channel Motor Controller.  I'm still fairly new to all this and I'm not sure what PWM frequency to use for the controller.  The datasheet that I have doesn't specify so I'd appreciate any advice you can give me.

Many thanks.

cr4cX Motor Controller

This blog is about the cr4's motor controller - updated 2012.03.22

Controller features:

  • controls two H bridges;
  • reads, interrupt based, two quadrature encoders;
  • implements PID algorithm for controlling the speed of the motors;
  • synchronize the motors;
  • communicates through Serial and I2C/TWI;
  • monitors the supply voltage;
  • monitors the current through the motors.

Dagu Gear Motor Pain

I have been flumoxed by a motor issue recently, and was wondering if others had some strategy dealing with it successfully.

motor selection......

 

hi,

the weight of my robot is 12-14kg.....i am having a serious problem in selecting motors...

 

motors must must have good rpm

must have torque 

must  have feedback (for differential drive , positioning and controlling)

must have power to drive 12-14kg.....

 

plz provide me guidance.......... 

 

A not so dumb but practical motor controller

I've been working on Leo's motorcontroller and reading a lot lately on bots.  It got me to thinking about using multiple uControllers to do multitasking.  I've slimmed down my original motor controller concept to just a PicAxe 14M, a L293D and some resistors. What makes this motor controller different is that it does more than just control the speed and direction of two motors for an indefinite amount of time.  It's possible during setup to make it that each command only last for five seconds or increments of five seconds.

What do you like in a SOFTWARE Motor Controller?

CTC & I were shouting and the topic came to smart motor control.  Strangely, I have was working on a motor control software interface, and thought, what a great opportunity to ask, "What would you desire in motor control?"

My interface commands currently looks like this :

Problems with I2C -- DISCARDED

I'm trying to control two motors  by means of a joystick. This means I've coupled the potentiometers inside the joystick to my Picaxe 28X1 and my Picaxe 28X1 to two MD03 motor controllers. 

While testing I'm using only one potentiometer and one MD03. The problem is that I cannot get the system to work.

The program I'm using right now is:

i2cslave %10110000, i2cfast,i2cbyte

main:

readadc 0,b0

Sabertooth 2x10 motorcontroller

Hi,

I am using a sabertooth 2x10 motor controller in my tank style robot. I have been controllong it with a PIC microcontroller board and all has been going well. Until the other day when i was using it and the status1 LED went off and the board stopped working. When i power it up now, all the motor outputs are at 13V and the status1 LED stays off. I have taken the heat sinks off the board and inspected the components but all looks ok.

In desperate need of help.Does anyone have experience of this problem? All help greatly appreciated!

motor controller

look ,iknow it`s a stupid question ,but i want to know waht is the motor controller? ,and what is its use?

replies please ...... 

Help with Sabertooth 2x25

Hey everyone. I am building a couple of projects using electric wheel chair motors. I am using the Dimension Engineering Sabertooth 2x25 motor controller. The proble I have is I am sending pulses of 1000, 1500, & 2000 us to the sabertooth and am getting random results (both forward, one forward the other reverse, both fast, both slow, one fast & one slow, etc) with no apparent consistency.

 

Qik 2s9v1 Motor Control Code

Update!  I answered my own question....I found that this motor controller has a max PWM of 127 not 255.  Once I changed that, I was okay!

 

HI Guys,

 

Drives 2 DC brushed motors. Holds 4A per motor.
Need a 8A  motor driver but don't have a lot of cash, look no further this article describes a simple and cheap solution. This project uses just few electronic … Read more

The best way to manage 2A motors.

Hi all, i'm wondering how i can control a motor with 2A current flow at 6Volts. I'm hacking a toy and the motors that make it to move requires that current... so i can't proceed to my plan A: the L293DNE, because it manages a maximum of 1.4A.

I don't know if exist a similar chip but wiht a higer current limit.

If You have ideas for that... PLEASE HELP ME!

The BIG board!

Ok, though you would like to see what I am working on now. I am having this as a blog post  until there is something worthy of posting. It sure looks cool or what :)

Tiny adventures in motor control

Since my last blog entry about using timers and interrupts on the Atmel Tiny 26P, I have put together a driving lego monster with homemade dual h-brigdes that in principle should be able to eat something like 25A or so - of course the wires used are not able to carry that much current but hey I only had those IRF540 and IRF9540 hexfets lying around :-).The controller is still the Tiny26P and my goal is to make this my I2C enabled motor driver for later use with other stuff.

NEED HELP! with my motor controller


Hello guys. I'm creating a RF controlled 2.5kg sumo bot. I'm a mechanical engg. student and so don't have much knowledge in electronics.

Basically I need to create a 10Amp motor driver for driving 2 12V dc motors,10A each using relays.
Buttons on remote control:

      1
2           3
      4

1-Move Forward
2-Rotate Anticlockwise
3-Rotate Clockwise
4-Reverse


I'm planning to use these schematics for radio controlling