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. Modern multimeters often feature additional capabilities such as capacitance, frequency, and continuity testing.
Developers should learn to use a multimeter when working with hardware, embedded systems, IoT devices, or any electronics projects to verify circuit functionality, debug issues like short circuits or open connections, and ensure safety by checking voltage levels. It is particularly useful for prototyping, repairing hardware, and validating sensor or component performance in real-world applications.