Category Archives: SparkFun AVC

G-Force progress

After a break of several months I’ve finally had my second attempt at a laser cut wood design and this time all the pieces did fit together! There were some gaps that needed filling so it wasn’t perfect, but it was close enough. Here’s a quick photo of the new chassis for my autonomous vehicle. I’m really pleased with the results and… Read more »

G-Force 2.0 Concept

I had some time this evening to start playing around in Sketchup to design a rough concept for the next version of my autonomous vehicle. This time around, I’ll be using laser-cut wood rather than my own woodworking skills. One design goal is to make it easier to access the motors and electronics for repairs so I’m designing “access hatches”… Read more »

Sparkfun AVC 2015 Rules Announced

If you haven’t already seen, Sparkfun just announced the rules for this year’s competition. It’s a shame there is no aerial course this year, but let’s face it; it was only a matter of time before there was a nasty accident. There are still some details to be announced, such as the details around the special 150 point-earning short-cut. I’m… Read more »

G-Force Makeover

My kids helped me paint G-Force and add some black duct tape lines. For a $3 paint job it’s turned out better than I expected.   The single ping sensor wasn’t cutting it for avoiding obstacles so I added two more. Obstacle avoidance is basically working now but I haven’t really been able to test it at the same time… Read more »

G-Force Navigation

With two weeks to go until the SparkFun AVC competition, the good news it that I now have basic autonomous navigation working. Here’s a short video demonstration. The next challenge is to make the robot avoid obstacles. This is important since there will be several large barrels on the course. After many hours trying to get obstacle avoidance working with… Read more »

G-Force upgraded to NiMH batteries

I’ve now upgraded from regular alkaline AA batteries to a 7.2v NiMH battery pack and this has solved the issues I was having with making G-Force make turns while in motion. I’ve also been experimenting with gradual acceleration to reduce current and risk of stalling. Here’s a short video showing accelerating from being stationary and performing a short turn. [youtube https://www.youtube.com/watch?v=M4wb2hSXvjg]