This project is a simple people-counting system that uses ultrasonic sensor, an Arduino board, and an LCD display to count the number of people passing through a specific location. The system is ...

Note: This counter is based on chip 74xx93 (counter) used as a frequency divider by 8 the maximum bandwidth for arduino to count is 8 Mhz and we can multiply this number using 74xx93 or any other ...

Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

As promised in the first part of this article, now it is time to see in detail how we can use the Alphanumeric LCD Display in our Arduino sketches. The idea beside this project is to give a simple ...

Computer engineer Thiery Guennou based in France has created a new Arduino compatible precision frequency counter 5 or 120 MHz. The inspiration behind the Arduino board was to build an open, very ...