How to interface Ultrasonic Sensor Module (HC-SR04) with Arduino

The HC-SR04 module is a specific ultrasonic sensor module commonly used for distance measurement. It comprises an ultrasonic transmitter-receiver pair and control circuitry, all integrated into a small board. The HC-SR04 operates by sending out a burst of ultrasonic sound waves and then measuring the time it takes to bounce off an object and return … Read more

How to interface HC-05 Bluetooth Module with Arduino

The HC-05 Bluetooth module is a popular wireless communication device that can add two-way (full-duplex) functionality in electronics projects. It enables wireless communication between devices using Bluetooth technology. The module is popular among hobbyists, makers, and electronics enthusiasts due to its ease of use, affordability, and versatility. It typically operates as a serial communication device, … Read more

How to interface Temperature and Humidity Sensor (DHT11) with Arduino

How to Interface DHT11 with Arduino

Fig. 1 The DHT11 sensor is a low-cost digital temperature and humidity sensor. It consists of a capacitive humidity sensor and a thermistor for measuring temperature, along with an analog-to-digital converter and a signal processing unit. The sensor provides digital output for both temperature and humidity, making it easy to interface with microcontrollers or single-board … Read more

How to Interface 16×2 LCD Module with Arduino

An LCD (Liquid Crystal Display) module with a 16×2 configuration is commonly employed in electronics projects, especially those involving microcontroller-based systems like the Arduino. The “16×2” specification denotes its dimensions: it features 16 characters per line across 2 lines, resulting in a total display width of 32 characters. Each character typically consists of a 5×8 … Read more

Active and Passive Devices

Active and passive devices are two broad categories of electronic components, each serving a distinct role in the functioning of electronic circuits. Here’s an overview of active and passive devices: Passive Devices: Passive devices are electronic components that do not require an external power source to perform their basic function. They respond to the electrical … Read more

Semiconductor Materials

Semiconductors are materials that have properties between those of conductors (materials that allow electric current to flow easily) and insulators (materials that resist the flow of electric current). The behavior of semiconductors is crucial for the functioning of electronic devices. Here are some common semiconductor materials:

Brief History of Semiconductors

The history of semiconductors is a fascinating journey that has played a pivotal role in shaping the modern world of electronics. Here is a brief overview of key milestones in the history of semiconductors:

Scope of Electronics

The scope of electronics is vast and continually expanding as technology advances. Electronics is a branch of physics and engineering that deals with the study and application of electrical circuits and systems. The scope of electronics encompasses a wide range of topics and applications, including but not limited to: