Multimeter
A multimeter is an electronic measuring instrument that combines several measurement functions in one unit, typically including voltage (AC/DC), current (AC/DC), and resistance. It is essential for testing, diagnosing, and troubleshooting electrical circuits and components in electronics, electrical engineering, and hardware development. Digital multimeters (DMMs) are the most common type, providing precise readings on a digital display.
Developers should learn multimeter usage when working with hardware, embedded systems, IoT devices, or electronics prototyping to verify circuit integrity, measure power consumption, and debug electrical issues. It is crucial for tasks like testing sensors, checking battery levels, or ensuring proper connections in DIY projects or professional hardware development, helping prevent damage and ensure safety.