Breaking News
Blog

The wheelchair siren

David Bley
8/17/2011 05:17 PM EDT

 4 comments   post a comment
NO RATINGS
View Comments: Newest First | Oldest First | Threaded View
ReneCardenas
User Rank
Author
re: The wheelchair siren
ReneCardenas   9/30/2011 4:49:16 AM
NO RATINGS
Like this story, reminds me of my first electrical circuit, it was a high-voltage generator, using a battery and couple of transistors, it was an interesting challenge to hold on to thiose metal bars!

Sanjib.A
User Rank
Author
re: The wheelchair siren
Sanjib.A   8/21/2011 8:05:54 AM
NO RATINGS
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.

agk
User Rank
Author
re: The wheelchair siren
agk   8/20/2011 7:33:18 AM
NO RATINGS
That is good idea and design. Now it can be done with simple piezeo buzzer.

More Blogs
Kaiser Permanente saw value of healthcare data early on. An interview with Dr. John Mattison, chief medical information officer, Kaiser Permanente, Southern California, tells why.
Is it even possible to cheat in Tour de France with a micro-motor? Can something so heavy and large be concealed?
EE Times reproduces a quiz that originally appeared in EDN in 1976.
The deal could also face hard scrutiny by the European Commission, which is now becoming more critical about consolidation in the technology sector.
The IEEE has ratified the 1735-2014 IEEE Recommended Practice for Encryption and Management of Electronic Design Intellectual Property (IP) specification.
Most Recent Comments

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed