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Find the latest semiconductor products, industry insights and upcoming technologies from the industry's experts on the HQ Online blog. Here we share technical guides, industry opinions, case studies and more from engineers on the ground working with the latest hardware.

ESP32 with DC Motor and L298N Motor Driver | Speed and Direction Control

Hello everyone, I hope you all are doing great. In today’s tutorial, we will interface ESP32 with DC Motor using an L298 Motor Driver. We will control both the speed and direction of the DC Motor and will use Arduino IDE to compile and upload code to the ESP32 Microcontroller Board.

April 02,2024

Line Following Robot using ESP32

A Line Following Robot is an autonomous robot(normally a 3-wheeler robot) that follows a dark line on a white surface. Such robots are normally used in industries to perform different tasks(i.e. pick & place objects) on a fixed track. Line Following Robots are also used in restaurants to take orders and deliver food. It also has some applications in the toy industry.To design this Line Following Robot, we are going to use an ESP32 Microcontroller Board.

April 15,2024

GigaDevice: Empowering the Future with Innovative Solutions

Explore Gigadevice's top-notch memory, microcontroller, sensor, and analog solutions. Trusted for quality and efficiency, they power everyday devices seamlessly.

March 19,2024

DC Voltage: What is it? (Circuit Symbol & Wire Color Codes)

DC voltage, or direct current voltage, is a type of electrical voltage that flows in a constant direction. It is commonly used in devices such as smartphones, laptops, and household appliances. DC voltage provides a stable and constant power supply, making it ideal for powering electronic devices that require a consistent and reliable source of power. This blog post discusses the circuit symbol for DC voltage, how it can be generated, and its advantages in providing a stable power supply for sensitive electronic components.

April 22,2024

Smart Heart Rate Monitoring with ESP32

In today’s tutorial, we are going to design an IoT-based Heart Rate Monitoring System with ESP32 Microcontroller Board. Remote Health Monitoring Systems are evolving in the modern tech world because of their immense advantages, especially in rural areas where healthcare facilities are not readily available. Nowadays, these remote healthcare systems are even embedded in wearable devices to promptly warn doctors about their patient's health conditions.In today’s project, we will use a Pulse Sensor to monitor the Patient’s Heart Rate and will send its data over the WebServer, so that a doctor can easily analyze it from anywhere in the world. In order to remotely monitor the heart rate data, we will plot a heart rate graph for visual demonstration.

March 25,2024

Diode Current Flow: Functionality and Characteristics

Welcome to our blog post on diode current flow. In this article, we will explore the functionality and characteristics of diodes, an essential component in electronic circuits. Understand how diodes control the flow of current and ensure the proper functioning of your electronic devices. Explore the two regions of a diode, diode current flow functionality, and important diode characteristics.

April 08,2024

The Footprint Files: Electrolytic Capacitors

In this blog post, we will be exploring the world of electrolytic capacitors. Here we will learn about electrolytic capacitors, their types, symbols, and applications in electronic circuits. Understand the differences between surface mount and through-hole electrolytic capacitors. Enhance your electronics knowledge and skills with this informative article.

March 13,2024

Current Divider Rule: What is it? Formula, Derivation & Examples

Learn about the current divider rule, a fundamental concept in electrical engineering that helps calculate the current flowing through different branches of a parallel circuit. Understand the formula and derivation of the current divider rule and how it simplifies the analysis process for engineers and technicians. Apply this rule to accurately calculate currents and design circuits in your electrical projects.

April 22,2024

A Beginner's Guide to Understanding IC Chip Specifications and Data Sheets

Regardless of your application, whether as a designer of electronic gadgets or hooked to know the details of integrated circuits (ICs), the mastery of your IC chip specifications and data sheets is key. Modern IC chips are unbelievably complicated to assemble, having billions of transistors and revealing the technical details. Yet, deciphering robust chip datasheets as a beginner might sound rather boring and confusing because of the strange language of engineering and parameters.

April 15,2024

Tips for Finding Current in a Circuit

Understanding how to find the current in a circuit is an essential for anyone working with electrical systems. This blog post explains how to calculate current using Ohm's Law, as well as formulas for calculating current in circuits with capacitors and inductors. It also discusses techniques for determining current in non-linear circuits using Kirchhoff's laws. With this information, you'll be well-equipped to analyze and understand current flow in various electrical circuits.

March 13,2024