Abstract
With the rapid development of integrated circuit technology, a favorable condition has been created for miniaturization, intelligence, and digitization of the measurement instruments. Meanwhile, with the advent of the Internet of Things, another possibility for advancement of the digital multimeter (DMM) is found. A DMM is designed to measure some key electrical parameters such as dc voltage, ac voltage, and resistance. In this article, a smart pen-shaped digital multimeter (PDMM) is proposed, which is more compact in structure and more intelligent in function. By employing a smartphone as the display, the volume of DMM is reduced. Through Bluetooth, PDMM can communicate with a smartphone, where data cloud management can be implemented.
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