Where the honeybee’s division of labor has stayed on a steady progression for 25 million years… our human superorganism has grown more complex and in all directions… hence... Read more
Many times, we often use LCD as display equipment, from tiny temperature monitors to large industrial equipment. The funny thing in this project is that it combines two Red LED Matrices as d... Read more
My previous Instructable covered the basics of detecting dart speed using an infrared emitter and detector. This project takes it a step further, using a printed circuit board, display, and... Read more
Microcontroller based miniscule event counter presented here is based on the inexpensive Digispark Attiny development board. One advantage of this design is that any type of active or passiv... Read more
People or Visitor counters are pretty famous embedded application that was widely used in places like theaters, malls, Transport stations and so. High end counters uses sophisticated hardwa... Read more
The Geiger–Müller counter is a relatively simple tool to measure ionizing radiation. To increase sensitivity, construction presented here contains three (instead of one as usually) soviet ST... Read more
Many guys here were asking for a frequency counter and at last I got enough time to make one. This frequency counter using arduino is based on the UNO version and can count up to 40KHz. A 1... Read more
This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) a... Read more
Many years ago, I think it was in 1997, I stepped into an interesting circuit on a book about high voltage [1]. It was the diagram of a simple “lightning flash counter” intended... Read more
The following steps will enable you to build your own tweiger-counter! It searches in current twitter messages sent around the globe for the words like nuclear, calculates a sliding window a... Read more
Have you ever needed to count something? Sure, we all need to count change, count blessings, and occasionally count cards, but that’s not really the kind of counting I’m talking... Read more