The DRV8811 is clearly a bipolar stepper driver that makes our lives considerably easier. It is just so simple to drive a stepper with this powerful device, as well as similar internal indexer microstepping engines, who takes care of all the nuances…
Category: Robotics
Blog material on all robotic related topics
Cobotrox I in Action
Like I explained on my previous post, I was finally able to take my old electric wheel chair platform and remote control it by using a very simple decoder that takes RC PWM signals and generates DC Motor PWM signals.…
Wheel Chair Robotics – Adding Remote Control Functionality
A great deal of the robots out there are basically just giagantic remote control contraptions. Some people will argue there is little roboticism about that, but I think remotely operated mechanisms do qualify as robots. After all, imagine a machine…
Understanding PWM
PWM stands for Pulse Width Modulation and it basically means precisely that. You have a pulse, and if you can change the width of the pulse without changing the frequency, then you have modulated its width. Lets first take a…
Removing the Brakes
Wheel chairs are meant to carry somebody, usually somebody that can not walk. It should be of no surprise that in the last few decades, architectural constructions have been mandated to take this into account. Wherever you go, there are…
Wheel Chair Based Robotics
For a while now, I have been trying to secure a few old wheel chairs to use as big robot platforms. At first I tried searching the Craigs List, but as it turns out there is nothing better than actually…
R2D2’s Last Walk
In the previous months, right after I took R2D2 out for a walk during Dallas TX 2009 Comic Con, I decided that the R2D2 project should have a big finale before I rendered the unit an ornament at my game…
Robo Games 2009
Last week I had to meet a customer in Orange County California. I decided that this was too close to San Francisco not to take advantage of this trip and take a detour into the 2009 Robo Games Experience, and…
A New Robotics Blog
Hi All, This is my blog to detail circuits related to robotic projects. I plan on writing detailed documentation on topics such as motion control, motor drives, robotic implementations and embedded systems. More to come soon!