Posts tagged "community projects"

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Nathan's line following robot: Suckbot

Posted by nathanb about 20 hours ago
Nathan's line following robot: Suckbot

After branching off into maze solving, pushing into sumo, and finding our way through dead reckoning, we circled back and had another line following competition at LVBots. I started designing the Suckbot before the previous line following competition over a year before this one, but the design dragged on and there was no urgent push to get it finished without another competition. The robot is designed to suck itself down to the course so it can go faster. I was able to get it following lines and sucking, and I managed to post some middle-of-the-pack lap times, but there was some unexpected behavior when tuning the PID parameters just before the competition, and I think there’s quite a bit of room for improving the robot’s performance in the future. Continued…

Jeremy's line following robot: Zumo Slim

Posted by Jeremy on 15 May 2015
Jeremy's line following robot: Zumo Slim

I recently competed in the LVbots line following robot challenge, where I took third place with the fourth fastest robot (due to lucky placement in the bracket). This was my second line following competition. I learned some valuable lessons from my first competition, such as bigger motors are not always good for going faster, so I focused my build on making a lightweight robot this time. Continued…

Claire's line following robot: Oddish

Posted by Claire on 7 May 2015
Claire's line following robot: Oddish

A few weeks ago the local robotics club, LVBots, hosted a line following competition here at Pololu, and like many of the engineers here, I built a robot, which I named Oddish, for the competition. I really only started seriously working on my robot about a week before the competition, so when I made the final decisions about what components to use I aimed for simplicity. In the last year we have come out with several A-Star microcontroller boards that include switching regulators, so I thought it would be fun and simple to make a line follower using an A-Star as the brain and its built-in 5 V regulator to power all the other components. I chose the A-Star 32U4 Mini LV for its operating voltage range and size. Continued…

Brandon's line following robot: The Chariot

Posted by Brandon on 6 May 2015
Brandon's line following robot: The Chariot

For the recent LVBots line following competition, my first instinct was to try to come up with some unique alternative design for a robot that would be competitive with the traditional differential drive robots. However, I knew the winning robot from the last LVBots line following competition (Mostly Red Racer) would be returning, and it had an impressive time to beat. I also remembered spending so much time designing and assembling the hardware for my last line following robot, that I ended up not having enough time to tune the PID coefficients and get the performance I was hoping for. After brainstorming a few ideas, I ended up deciding to keep it simple and make sure I had enough time to get a robot I was happy with, which I ultimately named “The Chariot” because of its shape. The Chariot ended up winning second place in the competition, which I was very happy with. Instead of focusing this blog post on how you can make your own version of The Chariot, I will try to explain my thought process throughout the design and build process, In other words, my hope is that after reading through this post, it will be clear why I chose the parts that I did. Continued…

Jon's line following robot: Usain Volt 2.0

Posted by Jon on 4 May 2015
Jon's line following robot: Usain Volt 2.0

Like other developers and engineers here, I made a robot for the LVBots Line Following Contest. This post describes my robot, Usain Volt 2.0, and details some of what I was thinking when I designed it. If you want to know more about the competition rules and how it was judged, see the LVBots line following rules. Continued…

David's line following robot that learns the course

Posted by David on 1 May 2015
David's line following robot that learns the course

Several people here made robots to compete in the recent LVBots line following competition. The goal of the competition is to make an autonomous robot that follows a line on the ground as fast as possible. I made a robot called LearnBot for the competition. LearnBot is able to learn the line course on the first lap and then use that information to its advantage on the second and third laps. Continued…

Zumo 32U4 kit assembly video

Posted by Ben on 21 April 2015

A customer of ours who is a software engineer in Seattle made this detailed video showing how to assemble the new Zumo 32U4 robot kit. Thanks for sharing it with us, Jamie!

Smartphone-controlled Zumo Robot for Arduino Tank

Posted by Ryan on 23 March 2015
Smartphone-controlled Zumo Robot for Arduino Tank

This Instructable by Annikken shows how to turn a Zumo Robot for Arduino into a smartphone-controlled tank. It uses the Annikken Andee for Android (they have one for iOS too), which is an Arduino shield that is connected between the Arduino and the Zumo.

Here is a video with the tank driving around:

More details are available on the Instructable page.

GPS puzzle box

Posted by Claire on 18 March 2015
GPS puzzle box

Forum user Bob Day shared his GPS puzzle box, which uses an A-Star 32U4 Micro, USGlobalSat EM-506 GPS Receiver, servo, and LCD to open a box only at a specific location. It also uses our S7V8F5 step-up/step-down regulator to provide power the A-Star and GPS module. In his post, Bob says that he got the idea from Mikal Hart’s “Reverse Geocache Puzzle Box”, which you can see in action in this video.

Top of GPS puzzle box by forum user Bob Day.

Pictures, connections, and the code used for the box can be found in Bob’s forum post.

Bohlebots wins West German Robocup soccer 1vs1

Posted by Grant on 6 March 2015

Bohlebots, a team of students in Germany, won the West Germany Robocup soccer 1vs1 open league for a second time. They sent us an email that shows how their robot uses three omni wheels spaced evenly about its round chassis, which allows their robot to move in any direction. The omni wheels are actuated by some of our 9.7:1 25D HP metal gearmotors, which are each controlled using one of our VNH5019 motor driver carriers.

Check out this highlight video of their robot in the competition:

Good job, everybody, and good luck!

The Bohlebots team.

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