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Fridge's Door Alarm: I have an old fridge and sometimes the doors stay open wasting energy. So i created this simple Fridge's door alarm which will buzz when the door is open for x seconds.
Fridge's Door Alarm: I have an old fridge and sometimes the doors stay open wasting energy. So i created this simple Fridge's door alarm which will buzz when the door is open for x seconds.
Fridge Door Alarm Circuit, 555 timer projects
Fridge Door Alarm Circuit using 555 Timer - Electronics Projects
Fridge Door Alarm Circuit using 555 Timer - Electronics Projects
Door Alarm : 5 Steps - Instructables
Cheap & Easy Refrigerator Door Alarm - DIY Danielle®
Door Alarm : 5 Steps - Instructables
Fridge's Door Alarm : 5 Steps - Instructables
Fridge's Door Alarm : 5 Steps - Instructables
Fridge Door Alarm Circuit using 555 Timer - Electronics Projects
Refrigerator Door Alarm : 7 Steps (with Pictures) - Instructables