Let's Make Robots!

Force sensor

I've already been 'bitten' a couple of times by waiting too long to write about things, so I'm going to try to post about things when they come to me.

Mini Sumo Bot Parts!


I decided to make a mini sumo robot a few weeks ago instead of doing an obstacle avoider. Turns out that once you think about it, mini sumo bots and obstacle avoiders are pretty much the same! The only changes I would need to make would be to the code. Great! Sumos can also double as line followers. So in short, they're pretty versatile. Here is an image of most of the parts that will go into this sucker. 


Glen the Stove, Picaxe, Processing, Twitter and Thermsistors...

Yup, I got the Twitter-stove project done. The video is pretty self-explainatory and code is available upon request.

Glen the Stove on Twitter

My Project

I wanted to post a new video of my robot on here, but I didn't want to keep moving my project to the top of the front page, so I'll post my video here.

I used this music, because it's called Bring Me To Life



Rover transforming rocket

An idea I had today how a rocket could be transformed into a planetary rover:


Rocket soars into the sky

Rocket engine drops at burn-out


Parachute deploys at peak altitude


Revised Hobbyduino Mini (Minimalist Arduino Clone)

A little while ago ignoblegnome (IG) did a review for me on my version of a minimalist Arduino clone designed to be used for prototyping and finished projects. The board design allows the Hobbyduino Mini to be used on a breadboard by soldering pin headers to the I/O sockets or in a finished project by attaching wires. IG also passed along some great suggestions for future versions. I took the suggestions he made and modified the original design. Below is the 3rd revision of the Hobbyduino Mini.

You know, for kids.

This is an old project of mine that I think I now want to finish. It will be my first attempt at image processing.

Here is where it is at so far. More information will be added with time.


ATTiny programmer shield

I got some ATTiny and now need to transfer the program from the Arduino IDE to the ATTiny without a programmer.

The solution is, just make your own programmer shield. Based on this tutorial http://hlt.media.mit.edu/?p=1229 I created my programmer shield for the Arduino Duemilanove. It's not pretty since it's just a ugly board out of my box but it works. Preparing the Arduino duemilanove according to this tutorial and then hook up the ATTiny into the header pin socket, open your sketch and click upload. Done!!!

Controlling an Arduino with a standard RC transmitter/receiver



Controlling an Arduino with a standard RC transmitter/receiver

There are many ways to remote control an Arduino, Xbee, RF link, IR…

I decided to try and use something I had laying around and that is common among large group of hobbyist : RC transmitter and receiver pair


Mind the Raspberry Pi power usage

The RaspberryPi is a powerfull little gadget that can add a lot of good features to your robot. For under $60, including cables, dongle and SD-card, you get a lot of processing power, data storage, wifi and audio. So I ordered a RaspberryPi to be used as the brain for my R2D2 project.

Motor ramping up and down

As of late, I had added some ramping to my motor driving code. I started with just ramping up but have added ramping down to stop as well now. Most hi-end motor controllers like the Sabertooth and RoboClaw do this for you, but it's nice to have on cheaper controllers to.

Circuit board 90% complete

So this is the first pic when it was about 50% complete, with the picaxe adapter mounted. The jumpers next to the adapter are used to select which picaxe to use when programming. 


The next image is with the pwm circuit that I had worked on, mounted on the main circuit board.

The 08m(empty socket at bottom right) controls the motor pwm control circuit.

The 14m(top center) sends signals to the motor pwm control circuit.