Let's Make Robots!

Nunchuck resolution problem to control a remote rover ?

Hello all,

With a home made remote control console with 2 gimbal joysticks  (similar to the Parallax : 27808 item and a small lcd screen, i control via a arduino Uno and xbee a rover with no problem.

Since i wanted a second controller wich i could hold in one hand i adapted a Nunchuck to control the same rover also with a arduino Uno and xbee and a very simpel protocol.

Need help with code for Pololu controller

I'm hoping someone is can help me with this code. It uploads ok, but the motors don't run.  Pololu suggested that the libary needs to be update. I'm new to Aurduinos and its beyond my abilities. Any help is appreciated!






include <CompactQik2s9v1.h>    // From pololu.com or ARB Support Site
#include <SoftwareSerial.h>

#define rxPin 3
#define txPin 2
#define rstPin 4


Robot to clean aquarium

Hi, im looking to built a robot that can drive on the outside of an aquarium while pulling a magnet on the inside to clean away any algea that builds up. I was hoping to make this robot relatively small but im struggling to source the parts to do so.

If anybody has any ideas of what kind of things i should be looking for i would greatly appreciate it.

Arduino code for proportional speed, using cheap RF modules results in erratic robo-behaviour

Hi All,

I have been stumped on this programming or hardware problem for many days now, and hope i can get some assistance to get things up and running.

father and 9 year old son newbies HELP


My son and I are interested in building a robot.  Max has built several Lego robots, but is interested in building from scratch.  I am an artists/woodworker/metalworker, I run a lab with 3d printers, Laser cutters, CNC etc and am comfortable with digging in to this kind of project.  We need some guidance as to where to start and a bit of a plan.

This is a father son project and a way to help Max focus on something he picked, understand goal setting and follow through. 

Arduino Mosfet Control

Hi Everyone.  If someone could answer my question I'd sure be thankful.  Unfortunately I am a little sparse on details because I'm away from my work bench.

Tips for having custom parts waterjet cut ⚙

If you have a sophisticated mechanical design for your robot, you may have considered having the parts made by CNC waterjet. But, as with any tool, there are some limitations to this approach. I created thse articles to explain the limitations of this technology and hopefully make it easier to get the custom parts you need from waterjet cutting

two Ultrasonic sensors. would they conflict?

Im thinking of getting some ultrasonic sensors for my platform, to play with. I was thinking i would have one on the chassis, pointing forward for contact detection, and then one on a turret for mapping distances to plan a route.

Would the two get confused by each other?

I guess it would just mean you would need to make sure that they work seperatly, with a percievible delay inbetween using one sensor, then another?

or is it not an issue at all?

Clubs in UK

I want to build an autonomous mobile robot with wheels or tracks, vision, arms and carrying ability (for example a tray area) that can navigate in a flat inside or outside domestic environment (not both).

I am UK based, have some old OO programming experience and general PC -based programming experience but no electronics expertise apart from basic school physics . 

I work full-time so this would very much be a part-time project.  From looking around I'm thinking of perhaps using ROS, OpenCV and maybe Arduino components but would like to know