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
Rookie
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
CEO
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
Rookie
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
Remember the names of these test-equipment companies? Most are long gone, but a few remain.
Custom system-on-chip from parent company mCube enables Ten Degrees to tackle indoor navigation with higher probability of success.
Because most new products are based on previous ones, engineers and product managers must decide the importance of new features versus compatibility.
It didn't take long to find a score of vulnerabilities in my home entertainment, gaming, and network storage systems.
Vendors and analysts would have us believe that the Internet of Things is imminent. In fact, it will be years before the obstacles it faces can be surmounted.
Most Recent Comments
Susan Rambo
 
y88games
 
Kinnar
 
y88games
 
AZskibum
 
AZskibum
 
AZskibum
 
sixscrews
 
collin0
Most Recent Messages
8/29/2014
5:26:13 AM
Flash Poll
Radio
LATEST ARCHIVED BROADCAST
EE Times editor Junko Yoshida grills two executives --Rick Walker, senior product marketing manager for IoT and home automation for CSR, and Jim Reich, CTO and co-founder at Palatehome.
Like Us on Facebook

Datasheets.com Parts Search

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