Poor man’s Lost Model Alarm (LMA)
Ever lost your radio-controlled aircraft in a jungly field? Well, even a simple lost model alarm detects its location. Following is a couple of design ideas for making your own poor man’s 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 announce that they’re scared or in danger, and for a variety of other reasons too. However, if your dog […]
Spark Transmitter & Receiver (another dirty diy trick)
The first radio transmitters of the early 1900s were known as spark-gap transmitters. Spark-gap transmitters were broadly used on board ships where they provided the first means of communication to shore-based stations. As the name […]
A Mighty LED Flasher
I still believed electronics hobby can be promoted through the application of nostalgic components and circuits. This is a meek try to inspire someone learning and experimenting with basic electronics circuits, or to wake up […]
Aquarium Cooler Fan
A while back I made a mighty aquarium cooler fan which initially was going to have an Arduino microcontroller to control the automatic cooling system but I moved to a Digispak board when I found […]
Nap Zapper Alarm? Don’t Buy! Do It Yourself!!
Everyone knows about the anti-sleep alarms that can keep us awake while we’re driving. There are two types of anti-sleep alarms – the first (and costly) type of alarm is built right into the vehicle […]
Musical Doorbell
How to build a cheap and cheerful musical doorbell using a few electronics parts laying around? I recently planned to try one idea, and this week I had the time for that. Now, I would […]
Automatic Fragrance Dispenser
A cheerful idea to fragrance your room without burning is to use an electric/electronic fragrance dispenser. So simply build the automatic fragrance dispenser presented here and place scented crystal rocks/fragranced crystals in the chest and […]
Mains Resumption Alarm & Emergency Light
The common mains power resumption alarm will activate an internal buzzer in the event of a mains power resumption after a power cut or power interruption. Such a portable alarm can be used in and […]
Get Your Waves
Are you ready to go back into the old school electronics again? If so, be prepared to forget about microcontrollers for a few moments! This time I’d like to share my random thoughts on certain […]