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“This is the toughest project for me among all of my previous builds and also consumes my lot of money and time, but the end result brings a huge smile on my face when I saw the complete build. I …
“Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents.Tesla’s original circuits as well as most modern coils use a simple spark gap to excite oscillations in …
“A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by …
“What’s inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip.1 Inside I found several types of gates, implemented with interesting circuitry and unusual transistors. The …
“It’s amazing how quickly you can put together an IoT protect using a NodeMCU and a Blynk app. On this tutorial we will learn about a great, reliable and easy to use digital temperature sensor, the DS18B20. Also as …
“This project uses any number of Lunchbox Electronics Matrix Kits that you want to chain together and create a display for your name. You’ll need one kit per letter and you can use as many boxes as you want …
“I’ve always wanted to use cheap lipo battery used in drone and RC car to power my arduino, but since I didn’t found any tutorials about it, I thought this was probably a bad idea. Anyway, that didn …
“Ultrasonic distance sensors like the HC-SR04 work by emitting a tiny pulse of ultrasonic sound and then measuring the time taken to return. These are typically used to detect the presence of obstacles around things like a quadcopter, robotic …
“In this tutorial you will learn a simple way to program your Pi using Sonic Pi to create a piano accompaniment. Remember the piano scene in the move Big? You will be programming the bass part of the song they …
“The idea of this circuit is to hack PIC oscillator circuit, by replacing the crystal by a coil : the frequency of the oscillator then depends on presence of metal near the coil, just like in a classic metal detector. To …