Let's Make Robots!

servos

Hello guys! From day 1 on LMR, I have been nothing less than INSPIRED. Read more
Plug in up to 4 servos - the servo wires will be extended through a single CAT6 cable
Now there is a clean and simple way to extend servo wires using a CAT6 cable. These CAT6 extension boards allow the user to plug up to four servos into the row pins … Read more

How to handle more than 8 servos on a PWM with the same microcontroller?

Hi!

 

Update!

As I see there are many boards for this solution, and I saw interest on this, I prepared a form to inform/check these solutions:

Form to inform about a Shield board to control several servos by PWM

I'll publish it here as I have enough information ;-)


Walks around, detects objects via IR
Using a
UPDATE 01/16/2014: Please scroll down to the Sharp IR sensor part of this writeup. Hello LMRians,  Read more

Trying to get Torobot USB servo controller to work with BeagleBoard

Hello,

I have a Torobot (24 I think) USB servo controller which takes text commands and converts them to servo controlls.

I am using a Beagleboard XM (not the Bone) with an Angstrom distribution on it.  I am having a hard time accessing the board programmatically and have tried several approaches.  The board itself is fine, I'm just trying to send it commands.  The Python API seemed to be the most straight forward, but, of course, there are a lot of depencies I'm fighting with.

Servo Power Gearboxes - revamped


We have recently revamped our line of Servo Power Gearboxes! Our gearboxes have always been top-of-the-line and super powerful (up to 3,402 oz-in of torque!) but now offer upgraded features and a more durable construction.

Knocks Objects Around the House
Using a
Hello All,   The world is full of obstacles, and Fightron 1.0 here, is ready to knock out some, in his own robotic journey.   After recently building an obstacle … Read more

Rotating Servos

Hello, I am trying to convert a mg995 servo into a 360 degree rotating servo. Im new to thi and need some aassitance on how to do this. any help would be greatly appreciated. thank you in advance.

Rotating Servos

Hello, I am trying to convert a mg995 servo into a 360 degree rotating servo. Im new to thi and need some aassitance on how to do this. any help would be greatly appreciated. thank you in advance.

butler, all terrain movement, suit controlled, partial telepresence
Using a
This is the more resent version of my humanoid and omniquadruped robots the humanoid has had its legs upgraded since my last post for it so now it is able to stand … Read more
Walk forword,back.left,right,balance one leg, up-down 1 or 2 leg,Turn right-left,Control With Bluetooth
Using a
My new Biped Robot "Red-Dragon V3"   what's new -Remove the camera Read more

arduino and kinect!

Hello guys,

I have built a set of devices (input and output) where a kinect scans the motion of an object and feeds with data 64 servos, using a servo driver shield (http://www.adafruit.com/products/815), an arduino uno and processing.

The probelm is that I am having some kind of overflow and thus I am using a 3s delay to make servos work the right way! I haven't found out yet if the problem is caused by the serial communication or the processor of arduino...

Some presents are on it's way....

I am waiting to get some presents in the mail for some future projects...

Chips

Servos

Goes insanely fast for it's size.
Going Whole HOG (or GWH) is my first foray into building a Hemispherical Omnidirectional Gimbal drive type robot/RC device. I first encountered the HOG drive right … Read more
     Hi guys.      One month ago I ordered two $1 webcams from eBay for future projects with some vision functions. Last week I received those items and I … Read more

10% off sitewide for Hobbypartz.com and its affiliates.

Hey guys, Hobbypartz and its affiliates are having a 10% off sale sitewide (which is kind of a big deal for us). Grab your servos, batteries, chargers, transmitters, recievers, or even an awesome RC car from NitroRCX. Just use coupon code EASTER10 :)

http://www.hobbypartz.com/
http://www.nitrorcx.com/
http://www.nitroplanes.com/
http://www.xheli.com/

 

I saw a tutorial that Ro-Bot-X did on controlling a robot with homemade IR Sensors so i decided to try it.  I am using two 38KHz IR Reveivers from RadioShack and … Read more
This would be the most advanced robot I have ever done. It's a humanoid robot based on arduino mega 2560. I created several functions like the attack mode which … Read more

how to control 64 servos with arduino?

Hello everyone.

I am working on a project where I am planning to use 64 servos that track the motion of a mouse and they operate according to the x and y position. Until now I have made a sample with 8 servos in a row, and using Processing I am feeding with data my arduino uno. However, going to 64 servos looks scary to me. Do I have to use 2x arduino uno + 2x 32 servo shield or should I switch to arduino mega? Is there any other alternative?

Here is a 32 servo shield that I have found: http://www.ecrater.co.uk/p/15329910/arduino-sensor-shield-v50-expansion?gps=1

Plays Tic Tac Toe, Participates in Oddbot's Naughts and Crosses challenge
Using a
UPDATED 2/28/13 Before you read this, please read the post on my other Tic Tac Toe playing robot: The Ttp Project at: http://letsmakerobots.com/node/36073 Read more

Quiet The Whine.

Name someone that likes the sound of servos... that's right, no one.

So what does anyone know about quietening the sound from servos? Would love to hear any ideas that anyone has.

One idea I was thinking was to put all the servo's for a robot into one box, and connect their moving energy to a flexible cable that passes through a hollow tube to where you want the work done. That way, perhaps the box could be coated with muffling material.

servo for mini hexapod

Hello,

I want to build a mini hexapod and i would like a suggestion from you for a cheap servomachine (de kserw an to grafw kala auto) to use, which will be sufficient for this project.. I have found these here on my own:

HobbyKing HK15148

HobbyKing 928BB

sg90

mg90

sg91s

Hi guys! I know I've been super inactive lately, but I finally created another robot project to share with the world. My other projects I've been doing in the … Read more

Spider controller now sold by SparkFun

The DAGU Red back Spider controller is an Arduino Mega (1280) compatible controller that is especially designed for driving a large number of servos. All 70 I/O pins are terminated in servo compatible 3pin male headers as well as the standard female header and the power supply is a switchmode power supply delivering 5V @ 3A from an input voltage of 7V - 32V.

This animatronic hand started life as a lofty ambition to make controllable skeleton hands as part of a Halloween costume. The fingers were built by first chopping … Read more

How to Build a Ping Pong Robot (YouTube)

Hey,

The ModuPong YouTube channel is about a modular robotics system that tracks a ping pong ball in real-time. In addition, we cover in this channel how the system predicts and responds in less than 130ms.

Please tell me if you have any ideas on how we could make our system better. Cheaper and faster would be great!