Introduction to the ACB Technology Seminar The Association of Computer Builders (ACB) recently hosted a groundbreaking technology seminar titled “Eyes on the future, feet on the ground.” The event brought together industry leaders, innovators, and technology enthusiasts to discuss the latest trends, challenges, and opportunities in the rapidly evolving world […]

Introduction to PCB Stackup Printed Circuit Board (PCB) stackup refers to the arrangement of copper and insulating layers that make up a PCB. The stackup design is crucial in determining the electrical properties, signal integrity, and overall performance of the PCB. In this article, we will delve into the world […]

What is an IoT Button? An IoT button is a simple device that can trigger actions or events through the internet. It consists of a physical button connected to a microcontroller, such as the ESP8266, which is programmed to send a signal to a web service or application when the […]

Introduction to Whitecat-Gateway The Whitecat ESP32 LoRa Gateway, also known as the Whitecat-Gateway, is a powerful and versatile device that combines the capabilities of the ESP32 microcontroller with Long Range (LoRa) communication technology. This gateway serves as a bridge between LoRa devices and the internet, enabling seamless data transmission and […]

What is PCB Impedance? PCB impedance refers to the opposition to the flow of electrical current in a printed circuit board (PCB). It is a critical factor in ensuring the integrity and reliability of high-speed digital signals and high-frequency analog signals in PCB designs. Controlling PCB impedance is essential for […]

What is a DC Chopper? A DC chopper is a power electronic device that converts fixed DC input voltage to a variable DC output voltage. It is essentially a high-speed switch that rapidly connects and disconnects the load from the power source, effectively “chopping” the DC voltage into discrete pulses. […]

Introduction to Opto-Isolator Circuits An opto-isolator, also known as an optocoupler or optical isolator, is an electronic component that provides electrical isolation between two circuits using light. It consists of an LED (light-emitting diode) and a photosensitive device, such as a phototransistor or photodiode, encased in a single package. The […]

Understanding DC Motor Speed Control To effectively control the speed of a DC motor, it is important to understand the fundamental principles behind its operation. A DC motor consists of a stator (stationary part) and a rotor (rotating part). When a DC voltage is applied to the motor, current flows […]

What are Halogen-free PCBs? Halogen-free PCBs are printed circuit boards that do not contain any halogenated flame retardants (HFRs) or other halogenated materials. Common halogens used in PCBs include chlorine (Cl) and bromine (Br). These substances can be harmful to the environment and human health when released during PCB manufacturing, […]

Introduction to Bidirectional Switches A bidirectional switch, also known as a bilateral switch or a double throw switch, is an electrical component that allows current to flow in both directions through a circuit. Unlike a regular switch that only allows current to flow in one direction, a bidirectional switch enables […]