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…
Connecting the AE-MDL-STPR1 Bipolar Stepper Motor Controller
If you have acquired or built one of my bipolar stepper motor drivers with up to 2.5A current capability and internal microstepping indexer, you could be asking, “How do I get this little guy started?” That is indeed a very…
DC Motor Control Basics
You have a DC Motor you want to control it. But how? And what does DC Motor control means? Pretty much when we are talking about DC motor control, there are 4 aspects we need to get our minds busy with:…
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…