Early in my career, I knew a woman who had a medical condition that confined her to an electric wheelchair and made her speech quiet and hard to understand. When she was in a crowd, it was hard for her to navigate through it because people did not see or hear her.
I built her a simple two transistor siren that could be attached to the chair and was operated by pushing a momentary push button. When people heard that siren (it was not loud) they moved out of her path. She was tickled with it.
That was one my first few circuits too. Much before I studied engineering, since my childhood I was passionate about building small electronic gadgets by referring to books/magazines which used to publish hobby circuits. Even though I did not fully understand how that circuit worked, I built that circuit with two transistors and a small speaker form an old radio. My friends and I had fun with that for some time.
General Motors will include multimode wireless charging in its 2015 Cadillacs and several other models. Adding standard wireless charging (to a luxury vehicle) is a step in the right direction, but an inductive-based system may not be as forward thinking as GM would hope.
Are you working with DDR4? Interested in NVDIMMs? Designing at 100 Gbps? Wishing you knew more about data acquisition modes? Well, here are summaries of some systems design articles regarding memory that were published across the UBM Tech network this month.
Join our online Radio Show on Friday 11th July starting at 2:00pm Eastern, when EETimes editor of all things fun and interesting, Max Maxfield, and embedded systems expert, Jack Ganssle, will debate as to just what is, and is not, and embedded system.