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Fastest finger first technique is used in quiz shows (with rapid fire rounds) to find the order in which participants press the buzzer (to give an answer to the question). This project is designed for four players. For real-time...
All schools and colleges follow a timetable for their classes, providing different time slots for different subjects. In order to follow the planned timetable, a person is assigned the job of turning on and off an electric bell manually...
This project turns on and turns off a laser LED after every second. It can also monitor its own supply voltage level. The circuit can be extended for use as an audio-visual alarm system for security applications. Keyes KY-008 laser...
In this project, we will be connecting and controlling our ES32 Wi-Fi based module from our mobile phone’s Google Assistant Application. The charisma here is that your google assistant will take voice commands in Hindi and perform actions on...
To drive small devices like neon lamps, you need a high-voltage DC power supply. This circuit is a simple DC-to-DC boost (step-up) converter for general-purpose applications. It uses readily available parts that can be bought from any electronic components...
In this IoT LED Lamp project, we handle the output pin of ESP32 for switching and dimming a DC LED lamp using a local Web server. For a local Web server, we do not need an Internet connection; we...
Presented here is an Arduino-based vehicle tracking system using global positioning system (GPS) and global system for mobile communication (GSM) modules. GSM modem with a SIM card used here uses the communication technique of a regular cellphone. The system...
This project demonstrates a wireless security system in which four pyroelectric infrared (PIR) motion sensors are placed in four sides—front, back, left and right—of the area to be covered. It detects motion from any side and turns on the...
This article describes how to build a simple and low-cost digital kitchen weighing machine, which can measure weight of up to five kilograms. This digital weighing machine is easier to design. For a heavy-duty weighing machine like your bathroom...
In this video, the presenter will have a look at the classic boost converter circuit and find a way to create a proper feedback based boost converter without a microcontroller. Also, he will show you how commercial boost converter...