Let's Make Robots!

LMR Downtime

LMR will be down for a software update tonight about 10pm PST (GMT-8). No big changes, just some core updates. Expected downtime is 30 minutes or less.

edit = To clarify, 2011-02-09 2200 PST (if I did timezone math correctly that's 2011-02-10 0600 GMT)

Apparently it's pinewood derby time at my mother's church again, so she bought a car kit for my son and I to build. After a bit of thought we decided on a 30's hot … Read more

LMR-III Now Online!

As you can see, LMR is back up and now at version 3!

No, your eyes did not deceive you, that was Zanthess' avatar you saw everywhere. This release includes a new attempt at thwarting spammers by adding a small quiz to the user registration form. Since this was Zanthess' idea the avatars where temporary and in her honor.

LMR Downtime - fair warning

LMR will be down for an update tonight at approximately 9pm, PDT (2100 GMT -7). Downtime should be an hour or less.

Here goes 812-R8. I really wanted to get something posted as this bot has been sitting here for almost a week now. More details and photos will be added later … Read more
Walks in a circle (no, not on purpose)
Using a
*Update 2010 Jan. 26*  I figured out one of the problems with R7 was there was too much flexibility in its feet. I added several polymorph goobers around the edge … Read more

Woohoo, more bot work done

A little more done, well, another phase started anyway, on my XMOS challenge bot(s).

4173772418_a1165186d8_o.png

From the bottom up, an ATMega168 @ 8MHz (with lilypad bootloader), a 74LS14 to put the schmitt trigger thingies on the wheel encoders, and a SN754410 H-Bridge to actually run the motors. Top-right is the KA378R05 3A LDO regulator.

Now to see if it actually works.

 

Servo+QRD1114 Wheel Encoder -- Fail!

I need wheel encoders on my current project. I believe that the gearing of the servo motors combined with the low weight of the robot won't allow the bot to roll by itself very much. Because of that I figure I don't really need full-tilt quadrature encoders. I also only have two of the QRD1114s, and I need two drive units, so each servo only gets one eye.

LMR-IIa Updates

Just a quick post to let you all know the few features that have been added with the IIa sub-upgrade.

The feeds listed on RSS feeds now work again

 blip.tv videos should now embed the correct video

 The User Map is now capable of showing only the user specified. In other words, when you click Location: San Bernardino, CA, US in my user page you'll only get me on the map, and it won't take 20 minutes to load!