Raspberry Pi for Implementation of Web Technology in an Automation Process

This paper presents a novel implementation of web technology to automate a hydraulic process by means of a commercial development board, Raspberry Pi. A web page was designed and the Ethernet standard has been used to stablish the local connection with the input and output ports of the Raspberry board. A program was coded in Python language to receive signals from the limit switch sensors and control the electro valve through a relay module. The valve has two solenoids and requires 24 V DC to commute its position. This valve acts on the hydraulic cylinder to automate the process, which can be understood like an implementation of Indutry 4.0. The hydraulic process was simulated and the implementation with Raspberry Pi has shown successful results.