Let's Make Robots!

Why Tri? A stupid way to build a robot.

This is a robot built mostly to explore how you can steer with a combination of differential rear steering and a single servo controlled front wheel. This is a stupid way to steer. Why try it? I expect I'll learn a few things. Maybe you will too.

  • Video 1: RC Turning Test
  • Video 2: Motor Driver Test
  • Video 3: Spin Turn Test
  • Video 4: Turning Mode Test
  • Video 5: Adaptive Steering Test
  • Video 6: Why Tri Sound 'n Fury!

You can also see Why Tri's robot page.


Ro-Bot-X Board Reviews

 

Introduction

Recently, Ro-Bot-X send me three boards to evaluate. I had previously ordered his Robot Builder's Shield V1, and commented with some constructive feedback and a review on it after using the board for Penny.

Review: Ro-Bot-X uServotino

Introduction

Now, for the next in a series of reviews on Ro-Bot-X's boards. This one is on the beta version of the uServotino. It is an ATMEGA328 custom board with the Arduino bootloader pre-installed. 

The Kit

Ro-Bot-X's boards are usually available in three options.

MyLaunchPad

 

This is my blog on the TI LaunchPad. A new platform for me to experiment with.

Note: The structure of this blog itself is a bit of an experiment. I will make posts to the forums with 'MyLaunchPad' in the tags, and include links to my posts in this blog. So the blog will be a collection of links to forum posts.

How not to steer

 

I recently hacked some servos for fun, and wound up with a servo that could only turn 90 degrees. This seemed like a good candidate to use as a steering servo. I had never tried steering with a servo, but I'd seen it done. How hard could it be?

I started with my two servo-hacked, brainless gear motors with attached wheels, which I had hot glued together with a battery pack for testing.

Hacked some servos for fun

 

I had a GWS S03TXF 2BB servo that I had previously released the magic smoke from. It's been sitting on my desk, labeled "bad" for some time. I took it apart and could see that the board shows visible signs of frying.

I also had a GWS S03N STD servo that I had butched for the brains, in order to try to create a mongo-sized servo for steering YardGnome (a work in progress).

It's 4AM: Arduino SHR Coded but not built

I've been planning an Arduino version of the Start Here robot. Today most of my parts arrived from SparkFun. This bot will be based on Ro-Bot-X's Arduino Shield for building robots.

100% up to date on everything

Frits made a big deal in the shout box today after I posted that I had caught up with ALL the forum posts. He suggested I make a blog about it, so here you go, Frits!

There was a little "easter egg" suprise message that comes up when you have no unread posts.