Abstract
Oscilloscope is an electronic test instrument which helps in monitoring the constantly varying voltage signal, that is represented in a two dimensional plot as a function of time. Oscilloscope can be called as CRO or DSO. It also display any other form of signal by converting it into voltages. These types of oscilloscopes are costly and they are difficult to carry to different places. Cost of maintenance and repair is very high in these kind of oscilloscope. Hence, in this project portable and cost effective Oscilloscope has been developed with the help of Raspberry Pi boards. Raspberry Pi is a tiny and an affordable computer which gives best Graphical User Interface and Graphical Programming can be done with the help of Matplotlib. Matplotlib is a plotting library for the Python programming language and it is built upon Numpy. MCP3008 (ADC), a 10 bit analog to digital converter, sampling at the rate of 200ksps is also used. This helps in converting the external signals to digital signals. With the help of Raspberry Pi, the captured signals are plotted and can be viewed in the output screen. Wi-Fi module is interfaced with Raspberry Pi and by installing a RDP (remote desktop connection) android application in the mobile phone, output can be viewed on mobile phone using Wi-Fi. With the help of remote desktop connection, portability is achieved.
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