About Alarms

This page contains an archive of all entries posted to Gadget Freak in the Alarms category. They are listed from oldest to newest.

Amplifiers is the next category.

Many more can be found on the main index page or by looking through the archives.

Sign up for the fortnightly Circuits eNewsletter. Get design ideas and circuit schematics straight to your email inbox, no fuss. Just tick the option for Circuits.

RSS Subscribe to this blog's feed
[What is this?]

Archives

Main

Alarms Archives

July 24, 2007

Ye olde Nintendo alarm clock ... e

And now it’s time for a walk down memory lane.

NES.JPG

Continue reading "Ye olde Nintendo alarm clock ... e" »

August 28, 2007

Some fridges are always alarmed

A fridge that's alert for midnight snacks.

When you’ve popped in your fridge alarm, getting peckish in the middle of the night and forgetting to close the door – along with escalating electricity bills – will be a thing of the past. Italian inventor Flavio Dellepiane has designed a 3V battery-powered fridge alarm that beeps if you leave the door open for more than 20 seconds. When the fridge lamp illuminates, the alarm’s photo resistor lowers its resistance, the IC starts counting down and after a preset delay the piezoelectric buzzer beeps for 20 seconds.

fda.JPG

Continue reading "Some fridges are always alarmed" »

October 2, 2007

How did we manage before the headlight alarm?

Never forget to turn off your headlight ever again!

headlight.JPG

Continue reading "How did we manage before the headlight alarm?" »

January 15, 2008

If this doesn’t wake you up in the morning …

Nothing will.

We’ve all heard the expressions “Sleep like the dead” and “Sleep like a baby”. If these sayings hit a little too close to home and you have a loved one who just doesn’t seem to wake up when the humble bedside alarm clock rings, why not invest the soothing sound of a fire alarm clock?

Continue reading "If this doesn’t wake you up in the morning … " »