Recently I came across a dirt-cheap knock sensor module labeled as Keyes KY-031 Knock/ Impact/Hit...
Electronics Projects
Poor man’s Driveway Alarm
With a driveway alarm, you can be sure your property is protected from intruders. The primary...
How to Build a Cheap Panic Alarm/Button?
The key purpose of a panic alarm (also called duress alarms, hold-up alarms, or panic buttons) is...
Locker Security Switch
Want an inexpensive locker security switch? Look no further – build this little but versatile...
Poor man’s RC Battle Switch/RC Relay
This is quite a fun little project that can easily help you to build a battle switch for your radio...
Musical Doorbell
How to build a cheap and cheerful musical doorbell using a few electronics parts laying around? I...
Automatic Fragrance Dispenser
A cheerful idea to fragrance your room without burning is to use an electric/electronic fragrance...
Mains Resumption Alarm & Emergency Light
The common mains power resumption alarm will activate an internal buzzer in the event of a mains...
A Simple LED Rescue Light
Lighting is very essential in the wake of a disaster! When a disaster depletes your utilities...
Fall Saver Infrared Bedside Alarm
I have no idea if you’re the type of maker who browses e-commerce sites looking for cheap...