Let's Make Robots!
I recently purchased one of the pan and tilt mounts from ICStation.  I paid $4.58 which I thought a reasonable price. I have since found them priced as low as … 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.

Extra Hardware Needed for Larger Hexapod

About a month ago I purchased hexapod kit off ebay.

Aluminium-Hexapod-Spider-Six-3DOF-Legs-Robot-Frame-Kit-for-Arduino

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
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

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

Waiting for a Pixy and Thinking of Challenge

I don't know how many of you ordered a Pixy from their Kickstarter, but I've seen the camera mentioned several times on LMR.

I was thinking of issuing a challenge to see who comes up with the first Pixy aided robot but I think such a challenge needs to be better defined.

What would be a good challenge? Line following with Pixy as the only sensor?

Propeller QuickStart Boards on Sale at RadioShack

Apparently RadioShack is putting their QuickStart boards on sale for $19.97. The normal price is $35 (possibly more at RS).

I know I'll be checking my local stores for boards (though I don't recall ever seeing a QS locally).

In case you haven't heard, the Propeller is a great microcontoller to use with robotics.