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Make Your Own ESP8266-12E/F Module Programmer

This article describes a method for making an ESP8266-12E/F module programmer and also discusses the support circuitry required for real-time applications. NodeMCU board is a development kit that consists of ESP8266 Wi-Fi-enabled...
multi-doorbell system

Build a Smart Touch-Controlled Multi-Doorbell System

Technology is advancing daily and everything is turning smarter. A number of traditional devices that we use in our homes are becoming smarter now, including doorbells that are evolving with new...
Portable Rain and Steam Detector

Make Your Own Portable Rain and Steam Detector

This is a simple portable rain and steam detector in one circuit. It is compact in size, runs on 9V battery and is easy to assemble. Circuit and working The circuit diagram of...

RFID Based Smart Device For Storing Data

In order to not forget confidential details such as login IDs, passwords, bank account number etc. we often note them down on a document for future references. But it not safe...
video

How To Calculate The Maximum Power Output From A Solar Panel?

This video demonstrates calculating the maximum power output from a solar panel and discusses determining the optimum resistive load for a solar panel. Video Courtesy: ScienceOnline
HVDC Power Supply Design prototype

HVDC Power Supply Design

Circuits like Geiger counters, insect zappers, Nixie tubes and sensors require high-voltage direct-current (HVDC) supplies. There are various types of HVDC power supply designs available in the market, including voltage doubler...

Automatic PID Controlled Ambient Light System With IOT Home Automation

Wouldn’t it be amazing if our room light automatically adjusts its brightness according to our need? Or if we can control the brightness of LED lights from our phone? This would not only...
Electronic Candle

Electronic Candle

Electronic or flameless candles are an alternative to traditional wick candles. These are used for home décor and do not carry the risk of fire as these have LEDs that glow...

Control Four Appliances with a Touch Switch Panel

This project is based on a capacitive touch sensor for controlling four electrical appliances. Toggle switches have been used for operating lights or fans, and momentary press switches for operating electric...
distance meter prototype

Meter To Measure Short Distances

This Arduino-based distance meter can be used for measuring the distance between the sensor and object in the range of 2cm to 400cm using an ultrasonic sensor. The author’s prototype and...