Let's Make Robots!

Arduino

Uses a smartphone to operate. It can be an assistant, pet, or a telepresence device. Can be anything depends on the mobile app you write.
Using a
Hey Guys, I know, I didn't post for a while. Didn't have time to post some of the projects, sorry about it. Alright, so here is our new project, we plan to go … Read more
This Legos robotic project uses JAVA sockets to communicate to an onboard Arduino which controls servomotors, LED's, and drive motors. It features a wireless IP … Read more
Navigate via GPS, Compass, and avoids obstacles using 5 IR sensors
Using a
Hi all, I'm Matt and currently a junior in high school. I built first robot called the "A.S.R.B." over the summer for the Authentic Science Reseach Program and I … Read more

Laser tag

Hello 

I am planning on building a lasar tag set with my arduino. does anyone know what I could use to detect the lasar ( some sort of reciever or cell of some sort) I want to be able to use it when there is light so a photo cell is already out of the picture.

Arduino Wavefront Algorithm

First Up... If you want to find out what Wavefront Mapping is all about head over to the Society of Robots Tutorial. It has a great wtite up and its where I first learnt about it.

 

Basic's done, So lets talk about Map size limits.....

The Arduino 2560 & 1280 both have 8k of SRAM (where the map is stored)

I'm using an array of Int's, each Int is 2 Bytes, so max size would be the square root of 8k / 2.

8192 / 2 = 4096

Sqaure Root of 4096 = 64

Trying to use a light sensor to control a stepper motor

So this code finally works, how do i change it from a light sensor to infrared sensor?

int dirPin = 8;

int stepperPin = 7;

 

void setup() {

  Serial.begin(9600);

  pinMode(dirPin, OUTPUT);

  pinMode(stepperPin, OUTPUT);

  pinMode(A0, INPUT);

}

void step(boolean dir,int steps){

  digitalWrite(dirPin,dir);

  delay(50);

  for(int i=0;i<steps;i++)

  {

    digitalWrite(stepperPin, HIGH);

    delayMicroseconds(800);

12/13/2012 Update: Code is now available for download at http://engineer-this.com/QuadrupedVer2.txt Its saved as a .txt file because I can't host a .ino. Just … Read more
Well,this is the second robo I've built. My first robo was based on the good'ol idea of Obstacle avoidance,this time I've tried something different. All Information … Read more

Need Help with conflicting Arduino libraries

Hello everyone,

I recently recieved some HC-SR04's and am wanting to make a little device to test them. The idea is that one sensor controls when a piezo buzzer will play, and the other sensor will decide the pitch of that note. I have written some code together but on trying to compile I get this error:

 

 


 

core.a(Tone.cpp.o): In function `__vector_7':

C:\Program Files (x86)\arduino-1.0.1\hardware\arduino\cores\arduino/Tone.cpp:523: multiple definition of `__vector_7'

servo

I tried to write a code but the servo would not stay so

Please can someone write a c++ code for arduio for me

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

The Prizes We had really great entries from all over the world with this competition. I didn't want anyone to go home empty handed so I have put together some … Read more
Navigates via Ultrasound, annoys the dogs
Using a
2012/12/4-Yay, the video is working!Also, OddBot is right, it is called "BubbleBot" because it is full of air, though I don't know how hot it was.This is the most … Read more

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.

 

Trouble with arduino/processing

I've been trying to teach myself Arduino and Processing, and I've been hitting a few problems. I had a previous post Here, but it was getting a bit crowded with code, so I thought I'd start a new post.

Attempts to dominate the lounge room
Using a
I want to teach my seven year old son about robots. Lego Mindstorms is a cool system but way too expensive. K'nex is much cheaper and makes a great robot building … Read more
GPS Waypoints, Autonomous navigation
Hello LMR, This is one of my robots that I have been working on for a while. I have'nt posted it yet because I wanted to make sure I have a lot done. I use the … Read more
Avoid obstacles, crash, follow my Rover 5
Using a
Update 2: Added a WiiCamera sensor :) I put a tilt/pan kit and WiiCamera on the little bot. Bought both from Rocket brand studios (CtC). The sensor is super cool :) … Read more

Questions about arduino, rover 5, shields

I'm an absolute beginner to making robots.

I'm looking to make a robot using the Rover 5 (4 motor with 4 encoders), and an arduino as the brains.

Based on what I've read, to drive all 4 motors as well as read all the encoders, the arduino UNO doesn't have enough pins, so an Arduino MEGA or Red Back Spider is needed.   as well as the Dagu 4 Channel 5-12V, 2A Brushed DC Motor Controller, or something similar which provides enough power to the motors, and communicates with the arduino (or spider).

First question is, is the above correct?

Can Arduino RBBB programmed wirelesly by wixel?

I have an arduino rbbb for my robot and i want to upload sketches wirelesly via wixel and wixel shield.. I am asking because at the description of wixel-shield says that it will not work with arduino Leonardo.. and i am wondering if that also happens with rbbb. It's not an official arduino so that's maybe the reason why it is not mentioned if they are not compatible. Any suggestions would be very helpfull.. thank you!

 

Old Sega Rally Arcade transformed into a new Arcade
      @ MEO XL PARTY 2012 Video Link                               The premiere of this installation was at Sapo Cobebits VI, that takes place … Read more

Very Very Cheap Platform

So, I was starting on building my second robot, and I didn't really find enough materials around. I found straws and chopsticks, so I cut them up, glue them, and made them into a cheap base for my robot.

For more info, visit http://danrobotics.weebly.com/very-very-cheap-arduino-platform.html

 

How to contol servo speed from serial

Hello all

I have  renbotics ServoShield and I have made a code on arduino where from serialport I can send commads to servos and it happens with that way... S01P1200,S14P2300etc..I mean that  Servo 1 to 1200 posion and servo 14 to 2300 posion

Navigates around via ultrasound, moves turret and fires "Death Ray" at targets
Using a
Update 28 NOV 12: - I've fiddled with the targeting code and now have it written correctly so that the GDR will enter "Sentry Mode", will scan 180 degrees using an … Read more

The Social drink Machine

Well, the Romanians at Robofun have built a drink mixing robot. It's not looking like the famous Bar2D2, it's looking more like a 2 axis CNC machine, but it has it's share of coolness. To order a drink, you scan the bar code with your smart phone, get to the site and choose a drink. Then wait for a bar code to be displayed on your phone, place a glass in the machine and show the bar code to the machine's webcam.

Tracks faces and orientates the camera so that the face is always in the middle
UPDATE 1: I have stripped down the processing code to the bare basics so that it can be used however you want. I added lots of comments to make it easier to … Read more

Hackerspace Pitesti

Hi , here we go for a new hackerspace in Pitesti , Romania and we have already a place for working but we need money for tools

 

So we started a campaign on Indiegogo for financing this , maybe you can help!!! 

Please like an share , you can help.

 

 http://igg.me/p/279590?a=1184660

Wavefront Algorithm Mapping

Hi, LMRians. I've been reading up on this Wavefront Algorithm Navigation and I understand bits and pieces of it, but not everything. I'm trying to learn up on it so I can use it in my next robot : Project 4L-FRED (Alfred), a butler robot. The robot is suppose to navigate around the house from the dining area to the living room and serve drinks to guests. The robot will have pre-recorded messages like greetings and stuff like asking what drinks the guest would prefer.