The key purpose of a panic alarm (also called duress alarms, hold-up alarms, or panic buttons) is...
Electronic Circuits
In this section you will learn and build simple electronic circuits projects. You will make interesting analog electronic circuits useful in daily life. Moreover, you will know electronic circuit design using circuit elements.
The circuits include home made electronic circuits, hobbyist circuits and prototypes.
BJT & Diode Temperature Sensors – A Quick Walk
When it comes to everyday temperature sensing, the thermistor is the most simple and inexpensive...
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...
Audio Induction Loop Receiver (Quirky Ideas)
Little version of the audio induction loop receiver presented here can serve a variety of purposes...
Solar LED Book Light
You never know what kind of funny gizmos you’ll find online, especially when you’ve a...
Poor man’s Lost Model Alarm (LMA)
Ever lost your radio-controlled aircraft in a jungly field? Well, even a simple lost model alarm...
Poor man’s Dog Silencer/Whistle
Everybody knows that a dog barks to get his/her master’s attention, to alert other dogs, to...
Spark Transmitter & Receiver (another dirty diy trick)
The first radio transmitters of the early 1900s were known as spark-gap transmitters. Spark-gap...
A Mighty LED Flasher
I still believed electronics hobby can be promoted through the application of nostalgic components...