Category Archives: Electronics
Since R2D2 from StarWars is very popular with my kids these days, I started working on a tin can robot which looks something like R2D2 and is remote controllable through a Android device (cell phone, tablet, ..). The body is made from a can which originally was for coffee. As you can see in the […]
PartSim is a online circuits simulation. It allows one to draw and simulate schematics in your web-browser: PartSim includes a full SPICE simulation engine, web-based schematic capture tool, and a graphical waveform viewer.
As noted on dangerousprototypes.com, Linear Technology provides a nice application note containing a circuit collection for almost all power supply needs: Battery, Boost, Buck, Buck-Boost, Flyback, Forward, High Voltage, Multioutput, Off Line, Preregulator, Switched Capacitor and Telecom. Download the application notes as PDF from LT
Today was the day where we decided, that E-Big Jake was ready for a ride. We checked the tractor with a throttle of 1/3 of what is possible. This resulted in a child friendly 5km/h speed. We also gave a throttle at 2/3 a try, and we got a speed of about 15 km/h. I […]
OK, I received the new motor controller (a 24v23 this time) and I managed to roughly hack the toy tractor together so that it is able to drive on it’s own wheels. Very hackish so far, and improvement is needed, but the tractor easily was able to drive me through my shop (since it is […]
Big Jake (the toy tractor) is now almost mutated to “Electric Big Jake”. The build seams fairly stable (tractor was able to carry me), and I managed to put back the top cover on the tractor. In the movie you see “Electric Big Jake” test-driving on a stool (I was only giving about 1-10 Volts to the […]