REGISTER | LOGIN
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
If you are looking to make a switch from hardware engineering to software programming, Facebook and Udacity have created a shortcut for you.
Market researchers predict a high-end car will contain more than $6,000 worth of electronics in five years, driving a $160 billion automotive electronics market in 2022.
TechInsights continues to dig into the process, cell structure and materials analysis of the Intel Optane XPoint memory.
The history of computing is not complete without the acknowledgement of mathematicians, scientists, and engineers like the African American women of NASA.
Amazon’s $13 billion bid to buy Whole Foods is a big-data deal that begs the question: What’s the future of the digital grocery store?
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed