Test #3 of my Arduino Uno controlled line following bot for the upcoming competition. This test was focused on checking how the bot handles 90 degree turns with sharp corners, line intersections and line breaks. The robot uses 6 TCRT5000 IR reflector sensors positioned in a line. ...
This is a very basic line following robot using 4 IR led sensor receiver pairs in a line, continuous rotation servos and Arduino Uno. The wheels are made from beer coasters and I was planning to add a wheel encoder using another IR led / sensor pair at a later stage. The logic is very simple, but works well to test the line detection and the basic movement commands. The next step should be applying a better control mechanism, maybe PID? ...
General Objectives: The objective of this contest is for a robot to follow a black line on a white background, without losing the line while navigating several turns on a race course. The robot to complete the course in the shortest period of time while accurately tracking the line from start to finish wins. ...
Release Candidate Very hard to keep it steady as voltage increases. That’s the best speed/stability result I got so far. Now using 3 sensors. The video below has it running at about 6V. Test 1 With differential steering This is the project in a very early stage with a regular RC toy steering mechanism. Using 2 IR sensors to detect change in color and correct direction. It’s pretty rough right now and it overshoots all the time. Not the best hardware… No word about software (don’t want to blame myself 🙂 ) Bare steering logic (RC toy version) ...
A free, on demand course offered by Udacity. Definitely worth checking out… Course Summary: “Learn how to program all the major systems of a robotic car from the leader of Google and Stanford’s autonomous driving teams. This class will teach you basic methods in Artificial Intelligence, including: probabilistic inference, planning and search, localization, tracking and control, all with a focus on robotics. Extensive programming examples and assignments will apply these methods in the context of building self-driving cars.” ...
Coursera is a social entrepreneurship company that partners with the top universities in the world to offer courses online for anyone to take, for free. One of the courses included in 2013 is “Control of Mobile Robots” by Magnus Egerstedt, a Professor in the School of Electrical and Computer Engineering at the Georgia Institute of Technology. According to the course summary, you will learn how to make mobile robots move in effective, safe, and predictable ways, avoid collisions while reaching target locations, as well as dabble with robots that fly, or walk. Sounds pretty cool! The next session starts on January 28th, 2013… ...
Turns out that rechargeable batteries and the L293D motor controller really slowed things down. Added another battery pack, and with 12 volts the bot actually moves. No smoke coming out of the motors, so all is well….
Here i tested my bread boarded tank against a simulation of the trial. http://www.youtube.com/watch?feature=player_embedded&v=KjCIk-AGLy4 Comments Comment by Wagner on 2012-11-27 11:47:16 -0700 Man, you are way ahead of the game (also considering that the video is 54 seconds long) Great work!
Circuits 1 – Khan Academy
Big Boy video 2 It just needs to go to the right direction now 🙂 Comments Comment by Stan on 2012-11-19 10:15:01 -0700 That’s a lot of shoes! Maybe it went back for a breath of fresh air? …and big suitcase looks suspicious…