Let's Make Robots!
So far it's used to test modified Eddie firmware.
As I mentioned in an earlier blog, I was given a bunch of really cool robot parts by Parallax in exchange for modifying their "Eddie" code to work with different … Read more

Will Code For Parts

Yesterday I received a bunch of really nice robot parts from Parallax.

While I didn't purchase these parts, they're also not really a gift.

Parallax wants some Spin code modified to work with some of their new hardware. I've been sent this hardware with the expectation I'll get the code working with it.

Navigate under remote control or automomously.
Prompted by Bajdi's and Mikronaut's hexapod builds, I decided to purchase one of the many inexpensive hexapod kits. Apparently I was one of the fortunate ones and … Read more

Hex Caster

Hex Caster is my attempt to come up with some play on the word "hex".

I plan to use this PCB with both my hexapod projects.

Here's the top of the board.

Below is the bottom.

The servo banks are broken into groups of six.

Important! See 26 October 2014 update below before following the instructions in any of the videos. I recently purchased one of the pan and tilt mounts from … Read more

Extra Hardware Needed for Larger Hexapod

About a month ago I purchased hexapod kit off ebay.


Yesterday as a break from program my Mini Hexapod, I started putting together this larger one.

This is a hexapod I've been working on for a while. It's a kit from Paul K. The hexapod uses HobyKing HXT900 servos. I was able to get the robot to successfully … Read more

Capturing Data from 7-Segment Display

Something I've wanted to do for a while is to be able to digitize the data from cheap sensors with a 7-segment display.

I decided to give it a try with some USB charge meters.

I purchased four of these meters.

I opened up one of the blue ones and probed the pins to see how the 7-segments were wired.

Frying Up Some Pi

Ugh! Someone I was trying to help with a cheap L298N h-bridge pointed me to this video from TheRaspberryPiGuy.

At 10:41 of the video he plugs the 5V line into his RPi's I/O pin.

Shows the relationship between wheel angle and speed of robot.
When I posted my Omnibot page, I said I'd make a video attempting to make some of the counter intuitive math easier to understand. The attached video is my first … Read more