electroniccomponent.hashnode.devHow Does a Passive Infrared Sensor Detect Motion So Well?What Is a Passive Infrared Sensor A passive infrared sensor (PIR sensor) is an electronic component that detects motion by sensing changes in infrared radiation emitted by objects, especially the human body. Unlike active sensors, it does not emit en...Dec 22, 2025·2 min read
electroniccomponent.hashnode.devWhy Do CH340 Drivers Matter for Modern USB-to-Serial Communication?What Are CH340 Drivers? CH340 drivers are software packages that allow computers to communicate with CH340 USB-to-serial chips used in Arduino boards, USB converters, and embedded devices. Without the driver, the operating system cannot detect or int...Dec 8, 2025·2 min read
electroniccomponent.hashnode.devWhich Battery Is Better for Your Device: LR44 or 357?Introduction to LR44 and 357 Batteries The LR44 and 357 batteries are small, button-cell batteries widely used in devices like watches, toys, and calculators. While similar in size and shape, they differ in chemistry, performance, and price. Understa...Dec 2, 2025·2 min read
electroniccomponent.hashnode.devAre Vibration Isolators the Hidden Hero Behind Smooth Machinery?What Is a Vibration Isolator? A vibration isolator is a mechanical device designed to reduce or absorb vibrations between two surfaces. It prevents unwanted movement from transferring into sensitive equipment or structures. Made from rubber, springs,...Nov 27, 2025·2 min read
electroniccomponent.hashnode.devWhy Do Resistor Symbols Matter in Circuit Diagrams?What Is a Resistor Symbol? A resistor symbol represents a resistor in electronic circuit diagrams. It helps engineers identify where current limitation or voltage division occurs. The symbol varies between standards—zigzag lines in the American syste...Oct 29, 2025·2 min read