Auditory signal when refrigerator door left open

[Robert Cherry]

Does anyone know of a simple circuit that makes a noise when a
refrigerator door is not closed?

Please send it directly to me at [email protected]

Thanks.

Robert Cherry
--

 

[Vidar Løkken]

Does anyone know of a simple circuit that makes a noise when a
refrigerator door is not closed?

Well, if the fridge has got a light which shuts of when door closes, you
could use a ldr close to the lightbulb and some transistors...

 

[John Larkin]

Does anyone know of a simple circuit that makes a noise when a
refrigerator door is not closed?

I hooked a bungee cord to the bottom of the door to slam it shut. The
freezer side would stay open a fraction of an inch, not enough to
light the light but enough to melt the ice cream.

John

 

[John G]

Does anyone know of a simple circuit that makes a noise when a
refrigerator door is not closed?

Please send it directly to me at [email protected]

Thanks.

Robert Cherry
--

Buy a Samsung 2 door,what you want comes standard at least in the 50hz
world.

 

[Andre]

My wife is making noise if I forgot to close any door..

 

[petrus bitbyter]

So you have a perfect audible alarm already!

No cost for components or extra energy and it never fails.



petrus bitbyter

 

[andy]

Well, if the fridge has got a light which shuts of when door closes, you
could use a ldr close to the lightbulb and some transistors...

or put a magnetic reed switch in the door frame, wired to a buzzer - the
magnetic door strip should close it when the door shuts.

 

[Sparks]

Does anyone know of a simple circuit that makes a noise when a
refrigerator door is not closed?

Please send it directly to me at [email protected]

Thanks.

Robert Cherry

How about this?
http://www.electronics-lab.com/projects/sensors/011/index.html