Wireless Security System Using PIR Sensors
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...
Doorbell with Security Feature
This doorbell Security system works such that when someone presses your calling bell switch during the night, not only the bell rings but the...
Audio Compression Using Wavelets In MATLAB
Audio frequencies range from 20Hz to 20kHz but these frequencies are not heard in the same way. Frequencies below 20Hz and above 20kHz are...
Build Your Own Digital Weighing Machine
This article guides you through building a budget-friendly digital kitchen scale that can measure up to 5 kilograms. It’s a simple design that's easy...
Power-Saving Relay Driver
In many circuits, the switching action is performed by a relay, which in turn activates an external load. The power consumed by the relay...
Road Safety Solution for Drunken Driving
Drunken driving is one of the major problems today, this causes several deaths every year across the world. Here is a simple method of...
Weather Logger
Presented here is a personal weather logger whose various transducers are used to log weather data such as humidity, atmospheric pressure and temperature. The...
Solar MPPT using IC LM5118
The need for renewable energy sources is on the rise because of the acute energy crisis in the world today. The main limitation for...
Touchscreen and GLCD-Based Home Automation
This project controls home electrical appliances using a touchscreen input device. The system comprises two relays for controlling a bulb and a fan as...
Home Automation Using Arduino Through Android Device
This project is based on Interfacing an android application to Arduino Uno board using Bluetooth. The result is a home automation system with minimal...
GPS Clock using Arduino
Global positioning system (GPS) synchronised clocks give accurate time. These clocks are universal and commonly used at railway stations, bus stands and airports. These...
Fridge Temperature and Humidity Indicator
We can measure temperature and humidity inside the fridge using a normal temperature-humidity indicator but relative humidity (RH) could be inaccurate in that case....
Arduino Projects: Making Arduino Shields Using Fritzing
We are all familiar with Arduino shields available in the market. These allow us to increase the functions and capabilities of Arduino boards. Without...
ESP32 Internet Radio
The cheap MP3 VS1053 codec processor from aliexpress.com is told to be capable of decoding a variety of music formats, including Ogg Vorbis/MP3/AAC/WMA/MIDI audio....
Signal Generator and Inverter Using NE555 Timers
Often we require a squarewave signal generator with adjustable frequency, almost equal high and low output pulses and adjustable amplitudes. Here we present a...
Weather Forecasting on ESP32
In any power utility corporation ash dyke management is a huge issue. For fugitive dust control huge sprinklers that spray water all along the...
Arduino-Based Two-Wheel Self-Balancing Segway
Segbot, Segway and inverted pendulum—two-wheel self-balancing robots are known by many names. Here we build a two-wheel self-balancing robot (segway) using an MPU-6050 chip....
ESP32 Particulate Matter Monitoring
Dust is a silent killer. Ever since the smog pollution of Delhi has hit the headlines, the public awareness about these two particulate matters...