Arduino pulseIn() Primer
A while ago someone asked me via email how to read a pulse input on an Arduino I/O pin. So, I decided to write a short note about that. Let me know in the comment […]
Arduino Larson Scanner
This is the simple way to play with a Larson Scanner. Just buy a Larson Scanner kit like the one shown above and start up the system. This quite popular open-source hardware 9-LED Larson Scanner […]
Solar LED Book Light
You never know what kind of funny gizmos you’ll find online, especially when you’ve a bunch of notifications configured to go off when such wonders pop up. I even find myself searching for something despite […]
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 […]
Learn to Use Arduino MF Shield
I have just chanced the need to read some sensors for another personal project. However, the project needs a couple of blinkers and beepers apart from the intended sensors. So, I figure to just use […]
5800B – Another Mystic Light Sensor
With one of my automotive electronics projects I am wanting to add a couple of light-dependent resistors (LDRs), also called as photoresistors, and to do that I did a thorough search to discover the best […]
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 […]
LM2596S Module – A Trivial Tale
There are different types of cheap Chinese dc-dc buck converter modules. The most popular module still widely available is one with the LM2596S adjustable regulator, it’s a pretty old design, though. You can buy this […]