E: 18/04 - Win a Freeplay EyeMax Radio!

Rock_Chick_Bird

http://www.electronicsweekly.com/blogs/gadget-freak/2008/03/gadget-freak-freeplay-competit.html

Test your knowledge of electronic gadgets for a chance to win a Freeplay EyeMax Radio!
The EyeMax Self-Sufficient AM/FM Radio has both a solar panel and the ability to power it yourself when needed. It also includes an integrated flashlight.
All you have to do to enter is correctly answer the questions below. It’s based on the use of LEDs in one of the Gadget Freaks that have appeared somewhere in these pages.
The competition closes Friday April 18 2008 with the winner drawn Monday April 21 2008. You can check out the Terms and Conditions here.
Once you know the correct response, why not[EMAIL="EWEditorial@electronicsweekly.co.uk?subject=Gadget Freak Freeplay Competition"]
email us[/EMAIL] with your contact details and just type a, b, c, d or e.
Good luck!

Which of the following designs combines a PIC and three constant current buck converters to create an RGB LED controller?
a) Bill loved riding his bike at night
b) LED blade powers self-built Star Wars lightsaber
c) Meet Andrew’s blast from the past
d) Pete decided to give his lamp a facelift
e) Richard had a flash of inspiration


I no understandee the question!! :rotfl: :rotfl:

sassi

The answer is D
answer can be found in the text on the 'Pete decided to give his lamp a facelift' page

and i quote...
Pete decided to give his lamp a facelift

Making an ordinary lamp a work of art
Seeing great potential in a normal, off-the-shelf product, Pete Griffiths designed a circuit he popped into the lamp to give it a new lease of life. His design combines a PIC and three constant current buck converters to create the RGB LED controller. This controller drives the high power 350mA LEDs using PWM to control the LED brightness. By driving the red, green and blue LEDs with varying pulse widths the controller can generate up to 16 million colours using fades, strobe and static effects. Who says you can't give the humble lamp a nip and tuck?

sassi

email answer to
[EMAIL="EWEditorial@electronicsweekly.co.uk"]EWEditorial@electronicsweekly.co.uk [/EMAIL]

[EMAIL="EWEditorial@electronicsweekly.co.uk"]Subject is [/EMAIL]

[EMAIL="EWEditorial@electronicsweekly.co.uk"]Gadget Freak Freeplay Competition[/EMAIL]

dementedhousewife

Email [EMAIL="EWEditorial@electronicsweekly.co.uk"]EWEditorial@electronicsweekly.co.uk[/EMAIL]
Subject: Gadget Freak Freeplay Competition