Kate's Comment

Thoughts on British ICT, energy & environment, cloud computing and security from Memset's MD

BOB 3.0 – construction

I have recently completed a major upgrade of BOB, mainly adding a plethora of new sensors. The picture below gives an overview: Head BOB’s head needs to be able to turn for “pet like” behaviour and to maximise the usefulness of the “ears” and ultrasonic sensor. Having added several sensors to BOB’s head meant that the cabling was going to…

Using HiTechnic sensor multiplexer in NXC

In order to give BOB all the capabilities I need more than the 4 standard sensor inputs. To that end I ordered two HiTechnic sensor multiplexers, one powered one (the one in front of him in the picture) which can do any sensor and one for just touch sensors (the one connected in the picture, distinguished by a lack of…

Giving BOB sensors to turn him into a robot pet

Some of BOB‘s new sensors have arrived (see right)! With them I hope to turn him into something resembling a robotic pet. 🙂 I am still awaiting the HiTechnic sensor multiplexer (I ordered the ones shown ones from Lego UK for simplicity) which will allow me to connect so many sensors to the NXT control brick. At present he just…

Programming B.O.B (Lego Mindstorms NXT) in not-exactly C on MacOS / OSX

My true first beginnings as a hacker were with Lego technics. I was very lucky that my Dad got me one of the very first systems for controlling Lego from a computer back in the late 80’s. At the time it was only officially available for schools, but he pulled some strings. Lego Mindstorms NXT My childhood love of Lego…