Reading data from a digital multimeter using a Raspberry pi

Abstract

The primary objective of this thesis was to read the data signal from a digital multimeter on a Raspberry Pi. This thesis aims to analyze how a communication process takes place between two devices. This thesis was conducted using a Raspberry Pi and a Fluke digital multimeter. The digital multimeter was connected with the Raspberry Pi using an USB-Serial cable that comes with the multimeter. To access the data from the multimeter, the Python programming language was used. The data obtained using the Python program in a digital method was also tested with an analog method simultaneously. One of the goals of this thesis was also to understand the communication protocol that is used by the two devices for talking to each other. On the basis of the tests and the results obtained, it was concluded that the data thus received using the python program was genuine. Therefore, reading data from the digital multimeter in Raspberry Pi was successfully carried out.