Hacks of Electronics
Here are the basic electronics tutorial circuits for beginners. You can find here tutorials on operational amplifiers (opamp), transistor, MOSFETs, 555 timer IC, audio amplifiers and many more.
Constant Current Diode (CCD) (also known as Current Regulator Diodes, or simply CRDs) are unique semiconductor devices designed to maintain a constant current over a wide range of voltages. They are extremely useful in circuits where a stable and predictable current is crucial, regardless of voltage variations. In this article, we will cover the Symbol, […]
An Astable Multivibrator is an essential oscillator circuit in electronics, used to generate continuous square wave signals without any external triggering. It is called “astable” because it has no stable state — both transistors in the circuit keep switching ON and OFF alternately, producing a continuous flip-flop output. In this article, we will explore a […]
Creating a wireless remote-control car using 433MHz RF modules is a classic electronics project. This guide explores a fully functional DIY 433MHz RF Remote Control Car Circuit using the HT12E/HT12D encoder-decoder pair, STX882/SRX882 RF modules, L293D motor driver, and BC557C transistors. We’ll also delve deep into how the transistors and diodes manage motor control and […]
In this article, we will explore the construction and working of a digital voltmeter circuit using the ICL7107, including how to measure both AC and DC voltages, how to calibrate the device, and an analysis of its advantages, limitations, and real-world applications. Digital voltmeters have become an essential part of electronics laboratories, industrial equipment, and […]
Monitoring the air, we breathe indoors is becoming increasingly important, especially in urban environments where pollution levels can impact our health. In this project, we’ll build a smart Indoor Air Quality Monitoring System using the BME680 environmental sensor, ESP8266 Wi-Fi module, and Blynk IoT platform. This compact setup allows real-time tracking of temperature, humidity, barometric […]
Explore Universal NAND Gate from its truth table to its IC pin diagram, delve into transistor-based logic circuit construction and working, and discuss the advantages, disadvantages, and various applications of the NAND gate. Just as the NOR gate combines the OR and NOT functions to provide an inverted output when all inputs are low, the […]