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

I2C Single Port TRIAC AC Switch Module (TRIACON1)

Features: Descriptions: TRIACON1 is a single-port AC switch module that utilizes TRIAC technology. This module can be controlled via a standard I2C interface. It features a programmable address, allowing customization to meet specific requirements.  Hardware developers will find it convenient for prototype designs where phase control is necessary. Additionally, the module interfaces seamlessly with popular platforms such as Arduino, Raspberry Pi, Banana Pi, Orange Pi, and other SBCs and microcontrollers. Application: 1 AC input terminal 2 … 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

IR-based Heartbeat Sensor Module (HBS201)

HBS201 is a Heartbeat Sensor Module based on infrared technology, offering a non-intrusive method of detecting heartbeats. By placing the fingertip on the sensor, it accurately detects the heartbeat. An illustration of its IR sensor is provided. It’s essential to note that this module is intended solely for educational and research applications and is not … Read more

Dead-Band control in bridge drivers

In a half-bridge or full-bridge MOSFET driver circuit, high-side and Low-side switches should not be turned on simultaneously for the system’s proper and safe functioning. Due to the propagation delay in driver circuits, both side switches may turn on for a short period. During this short period, a high current flows through the switches, and … 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: