Let's Make Robots!

robot

Driving a motor with solar cells (without a solar engine)

What I want to do is this: I have a basic bicore hooked up to a vibration motor.  He kind of flops around, but it isn't totally random.  Anyway, I was wondering how I could power him with some solar cells that I have without using a solar engine.  If that's possible, I would really like to hear some ideas.

Building the perfect Beast (robot chassis)

2012 may be the year of the Dragon for China but it is the year of the robot chassis for me. I am trying to create a new range of robot chassis's and I'd like to know what features my robot building friends would like to see in a chassis. Obviously low cost and high quality are preferable but what else?

For example size? As far as I can see there is already a range of sizes on the market. Is there a size that's missing? I was looking at some cool wheels that were about 250mm (10 inch). Would you want a huge chassis and for what purpose?

Sneak Peek: Jamie's Awesome Robot Toy

Some of you may know user Jamie, who has posted here occasionally, but spends most of his online time on his YouTube Channel. There he posts about his Giant Robot Project and other amazingly cool stuff he does.

infrared sensors

I've got two sets of phototransistors and infrared emitters put together to make two IR distance sensors. They are both connected in the same way, both powered by my Arduino Uno, both with the same resistor, etc. But when I check the values I'm getting from them, one of them ranges from about 980 - 1010, with the higher value closest to the sensor. The other, however, goes from about 350 - 570, with the higher value the furthest from the sensor.

It uses a Parallax Basic Stamp and four servo motors. It will use a SOMO 14-D to read the recipes aloud. The buttons are going to be used to control the reading of … Read more
Given a priori knowledge of the environment and the goal position, mobile robot navigation refers to the robot’s ability to safely move towards the goal using its … Read more

Cheap Junk

Hello, I'm a college student from the US. We have a local resale store called "Goodwill". You can buy RC toys (and other stuff) by the pound. The cost is like $0.70 cents per pound (+/- a pennie or two) The store has 100's of bins and they dump donated stuff in them. Then you walk around and dig for your treasure. I have purchased a few RC trucks and a tank for less than $1 USD each. So keep this in mind where you live as there might be a place like this in your town for you to scrounge cheap robot fodder.

 

  Hello I have been scrounging junk again!  -lol   I'm still working on my Jansen walker project, but found this mechanical thingy (junk) at my job and was told … Read more

How do you connect a SRF005 to an Arduino MEGA 1280

I need help on connecting a srf005 (the blue one) to an Arduino MEGA 1280

You can use this image as a guide.

I want the connection for the srf005 using only three pins. :) (The one where you connect the mode pin to ground)

Thanks,

Microbot777

Navigate by sudden deceleration (collision sensing)
Using a
This is a prototype of a robot car I am designing for the classroom. The idea is to create a kit, cheap and simple enough for the classroom with enough … Read more

making an analog robot

I have been inspired to make an analog neural network robot after seeing phoenix. My robot is called synapse and it will react to its environment. It is nocturnal and it has touch sensor arms and only is active at night. I will update you a soon as i can.

Pick up objects, knows it's position. Can remember and repeat.
Using a
Hello, I've found many great ideas on LMR and thought about posting a robot arm I worked on. This robot arm is controlled by an Arduino Mega based controller called … Read more
Robot that can be controlled via bluetooth
Using a
So I build my first wheeled robot. For now it has no special functions or sensors, but I'm planning to add those features later. Robot can be controlled with PC, … Read more

New DAGU products for 2012

Well 2012 is off to a great start with a brand new Arduino compatible controller, A car controlled by your phone and a robot arm with teaching pendant from DAGU.

The Micro Magician is designed for small robots running on low voltage batteries. The controller works on voltages from 3.6V to 9V.The heart of the controller is an ATmega168 running on 3.3V with an 8MHz clock. Check out the great new features!

Weight

Hello,

I have started building a quadruped robot using Lynxmotion SES parts. I have the Lynxmotion quadruped body kit and 4 SES 3DOF legs. I have bought servos and put everything together. However, I'm much more comfortable with the code than with the mechanics.

Beam photovore problem

Ok so I made this beam photovore robot using an online tutorial (google: rays beam robots) and after I completed it only one motor moves. Watch my video below.

arduino and SLAM

Hello,

I am developing a robot platform for children for educational purposes. My aim is to build a sub 100$ bot with arduino brains. I myself is a good programmer, and if I were to do it for myself, I would use an ARM or a better platform, but I have to constraint this project with arduino.

I have already designed some parts, and I have access to a 3d printer, so it is going all well. I already have a servo/sharp IR sensor scanner, and currently I am using a tamiya tracked vehicle for platform.

  Game = "STACKS" Goal: Build an autonomous robot that starts in the “Start Box” and moves a block (or blocks) from the “Loading Zone” to the “Stack” … Read more
Analog Robot Controller
Hello! I made a pcb for Aivot - analog robot controller Parts: 2x 2N3904 1x ferric chloride mix 1x printed circuit Lots of pictures: Printed circuit and piece of … Read more
The µBipedino robot is a tiny biped with 2 servos per leg. With a 2x2" custom made main board and another one for the head, this little robot can walk, turn, … Read more
This robot is my version of keepon. It users two servos and an arduino uno to dance. I hope you enjoy and like the video. Read more

Experimental RC Robotic Hand

Introducing my Experimental RC Robotic Hand. I'm going to use it for a robot that I will use to take on Ro-bot-X's "Search And Rescue" Challenge. It's purpose is to get a hold on the drink, obviously. This is only Version 0.2, I'm am currently building a lighter and easier to use grabber to replace the heavier hand that is attached to the winch motor.  More updates soon.

move forward and sense walls with it's antennas
This robot uses two SPDT (single pull, double throw) switches, antennas, motors, and a battery pack. The antennas are connected to the switches, and so when the … Read more