Let's Make Robots!
Hello Members of LMR. I'm back with a new project, it's not a robot but is a really neat learning tool that every Electronic Engineer or student will love to have. … Read more

28BYJ-48 stepper motor

hello, I'm working on a new project and I'm using this small stepper motor from yourduino.com. I'm controlling the position of the stepper motor using a 10K potentiometer and it does rotates according to the pot, but it jitters at any position. What could be cousing this jittering?. I tried the knob code from arduino.cc and still jitters. I replaced the pot with a 1.2 kohms fix resistor and it does not jitters when stoped. Is the code missing something? HELP, no really HELP.

#include STEPS 100

Stepper stepper(STEPS,8,10,9,11);

int previous = 0;

void stup ()

where can I get a pair of 2" omniwheels.

Hi, I want to replace the front wheels of the Turtleduino for omniwheels, but I can not find a 2" omniwheels for the turtle. Does anyone knows where to get them? Here is the video of the Turtleduino.

Object Avoidance Robot
Using a
Hello, finally I have finished my first robot, I named it "TurtleDuino"  (you'll see why?).     Read more


Hi, I'm new to robotics and this forum. I've always wanted to build a robot but did not know where to start, until I stumbled on this site looking for parts for a R/C car and thought it would be a good idea to finally build my firs robot.

So, I got all my gear (tools) together and off I went into my caveman and started building my first robot. I decided to start with a simple obstacles avoiding robot project using the famous Arduino UNO. I'm going to name it The TurtleDuino because if all goes to plans it will look like a turtle.