Let's Make Robots!

beginner

Best microcontroller for me to use?

Hey guys, Cycloned here. I am just hoping to start with Robotics. I know nothing, I have an NXT kit and have done some work with that, but nothing at a higher level, and now that Im in engineering I understand I've got to stop using such kits and actually start building robots from parts. I would like to know what microcontroller that I should use. There are some events in my college (robo wars, robo soccer, sumo wars, and an obstacle course) that I wish to participate, so I was wondering what would be well suited for such competitons.

Best microcontroller for me to use?

Hey guys, Cycloned here. I am just hoping to start with Robotics. I know nothing, I have an NXT kit and have done some work with that, but nothing at a higher level, and now that Im in engineering I understand I've got to stop using such kits and actually start building robots from parts. I would like to know what microcontroller that I should use. There are some events in my college (robo wars, robo soccer, sumo wars, and an obstacle course) that I wish to participate, so I was wondering what would be well suited for such competitons.

Autonomous Drive, Line/ Maze Follow, Drawing, Mapping, RC Drive
Using a
Hey hey! Just as great as the Original Tadpole, but with 100% more wood! I was shopping on the ol' eBay's and came across some 3mm birch plywood, usually used in … Read more

Getting Started with the 4WD Wild Thumper

Hello,

This is my first post here.  I'm sorry if these are very basic questions.

Raspberry Pi Lego car

Hello all,

I'm making my first robot using Raspberry Pi. My robot looks like a car with three wheels. Two of them are in front and have connection to motors, The third one is behind and it's no connection to motors.

I'm planning to use 2 simple motors (for each front wheel one). For now my robot weight 260g, and i have to add two motors and battery and i little of more constuction for holding motors and battery. I'm already found which type of motor should i use:

Motraxx MOTOR X-FLY 400 or Moteaxx MOTOR X-FLY 280.

Does experimenting help learning you to build robots yourself?

Hi, I'm fairly new with Robotics. I've been interested in all kinds of Sciences for a long time. After I saw a Video on a Wewssite about a robotic Dragonfly and a robotic lizard that could walk aswell swim using it's tail, I decided to look for things online to get started on Robotics. 

So far I've only found tutorials, books and video with titles like: 'Learn how to build your first robot', 'Learn how to build a robot', 'Your first robot' etcetera.

uses ultrasound to navigate around obstacles
Using a
I came across the instructions to build this in a magazine and found it a great entry into robotics. It is working well but I'm still fine-tuning the programming. I … Read more

Is there interest in a new BASIC compiler for AVRs?

I want to find out how much interest there would be in a new BASIC compiler for AVR processors.  I have been working on one in bits and pieces for about a year and a half.  I would like to get motivated to complete it, so I want to know if others would be interested in it.  This is a VERY large project, so it will take a lot of time.  It will be about 10,000 lines of code for the first useable release. If I really get going on it, I think I could have an initial beta release before fall. My motivation level will be directly proportional to interest.

beginer in electronics needs to program

hi, im a twelve year old boy who is not an expert  AT ALL, but knows the basics

i've made bristlebots, speaker tones, dc motor cars  and other stuff

BUT

when i have to program  in arduino UNO i just copy other codes from other people

cause...  I dont know how to program at all!!!! i think arduino's language is c,and i don't know  how to program

 

anybody knows how to program arduino

and can give me a little tutorial about key words and etcetera like setup, delay, control of dc motors sensor etc...

RF Link Help

I have been expiramenting with some RF links (tutorial here, RF link). The tutorial is great, but it only does serial communications. 

The code I use is 

 

// transmitter.pde

//

// Simple example of how to use VirtualWire to transmit messages

// Implements a simplex (one-way) transmitter with an TX-C1 module

//

// See VirtualWire.h for detailed API docs

// Author: Mike McCauley (mikem@open.com.au)

// Copyright (C) 2008 Mike McCauley

Artist, first time robot creator

Hi everyone. I'm an art student who's doing my instillation for my Advanced Drawing class on automated art and the creative power of robots. Needless to say I'm quite lost when it comes to the mechanics of it. I got ideas, but ideas don't mean shit if they're not backed up by knowledge. That's why I'm asking you guys for help, and hopefully I can take the advice and use it to make some really effective pieces.

 

Choosing a transistor

I've used two types of NPN transistors in the projects I've done so far and I've tried to investigate why, but my conclusion just doesn't seem to make sense (actually, I'm not sure if I've reached one...).

For use with an Arduino, I've used a PN2222 transistor:

 

Whereas, for BEAM solar bots, I've used the 2N3904:

 

Doodle Bot - beginners platform

The Doodle Bot is a very simple robotic platform for beginners, students and hobbyist.

The Chassis is a simple laser cut panel with two ball raced geared motors and a servo for raising and lowering a white board marker, jumbo chalk or crayon. Each wheel is fitted with an 8-pole magnet that is monitored by hall effect sensors to form two simple wheel encoders.

The kit includes an Arduino compatible controller with an ATmega8A processor, USB interface (CP2102) and FET, dual "H" bridge. Sample code allows the user to write simple alpha-numeric text messages.

Baby's First Hexapod

Hey party people, how goes?
I'm a recent engineering college grad and I finally have enough money and time to work on a few projects I've put off for the past few years.

The first project I want to pursue is a hexapod development platform to learn some programming and locomotion basics and then build upon that.

Rotates a head along a mathematical function
Did you ever tried to rotate the robot head and found the movement nervous?    This tip can help to smooth movements out.  Did you ever looked at a robot and … Read more

How to begin?

Hi there

I have found robotics interresting for some time now, and I have decided to give it a try. I have been making projects with an Arduino before, but never with sensors and motors (I have no idea how to program these). I have been looking at your "Start Here" page, and it looks really interresting. But because I have been making projects before, I think i will use an Arduino in my robots. So I got some questions, that I hope you guys will help me solve. 

1: How is the easiest way to start with the Arduino? 

Building a line following robot Need help with programming

 

#define INA_2   10   //This is the left forward control of the robot, I defined each pwm pin that is connected to the arduino

#define INB_2   11   //This is the left backward control of the motor, e.g set this high and INB_1 high and others low you will do a reverse

#define INA_1  5    //This is the right forward control of the motor

#define INB_1  6   //This is the right backward control of the motor

 

 

 

 

Sensibilizes about the delay() function
Whenever you use delays in your robot code your microcontroller is going to do nothing but wait until the delay is passed. Where on one hand this is a blessing it … Read more
Navigate without killing itself
Using a
Hello once again LMR! I recently made a few changes to my robot “Mobile Arduino Experimental Platform” (MAEP), and have written this tutorial on how to create a … Read more
Allows user to navigate areas and communicate remotely.

Arduino/ servo/ RC basics

I'll start off admitting that I'm a complete novice at robot building, so pardon me for what is probably stupid questions. I have bought an arduino with the intention of building a robot and have an idea of doing so mainly with servos, and I know that I can probably run them off the arduino without any problems helped by the arduino servo library, but can I just plug them in directly to the arduino or do I need a resistor in between or something? And question 2 How do I make my robot controllable via R/C? How do I put those circuits(?) together?

spybot 1.0

Hi LMR! I got the idea to make a little robot, with 4 wheels that van drive around. Ok, what's cool about that... so I decided to add in a camera and a wireless connection to a pc. I'm a total beginner to this BTW, but I'll figure out how to program it. The overall idea is to make a robot I can control from my pc, that transmits It's video signal to my pc so I can se where it is. My question is, which components would he suitable for my project? I was thinking about getting a wi-fi connection to work with my pc, will that work?

Where to begin with PIC chips?

Okay, so I've gone out & bought my Arduino clone, had fun* with it, bought a truckload of ATMEGA 48-328's & had fun* with them and would like to now broaden my horizons a little. I'd like to see what's on the other side of the fence & give PIC chips a try. From what I can see, both have their advantages/disadvantages & can excel in some areas where the other may flounder.

My First Robot

This is my first robot. It uses a POP-168 power board (which is based off a arduino ATmega 168). It uses two DC motors for movement, and a parallax standard servo motor with a sharp IR sensor mounted on it for object detection.

inex POP-BOT

a circuit to make a 3 way switch

Thanks a lot for the support you people showed last time. I want to make a circuit which has 2 LEDs and a normal on/off switch (at least) and other components as required. The circuit should function like this- When i turn the switch on for the 1st time, LED 1 glows but LED 2 remains switched off. When i turn the switch off for the 1st time, both LED 1 and 2 remain off. When i turn the switch on for the 2nd time, LED 2 glows but LED 1 remains switched off. When i turn the switch off for the 2nd time, both LED 1 and 2 remain off. Please provide me with a circuit diagarm for the same and

Recomendations for a School Lab?

I am setting up a basic electronics/robotics lab at my school. I have been trying to figure out what a good soldering iron would be for the classroom or if one of the kits available, which contain other useful tools, are viable. This is a class/club where both the students and teacher (me) are relatively inexperienced. We bought some cheap soldering irons last year but they are already useless and I don't want to make the same mistake twice. So, I guess I'm looking for warnings as much as recommendations.