As the author mentions on the GitHub page Windows: it seems to be working for some people, not working for some others.A web browser then can display the page, be it on the same computer or over a network.Aha Isnt PHP a programming language for Internet related applications Yes, it is.It all starts by remembering that HTML allows the use of a meta tag that instructs the browser to reload a page periodically.
If we create a web page that includes this tag and point the browser to it, the latter will keep reloading it every ten seconds (the timeout can, of course, be another value). Send File Serial Port Python Serial Data IntoIf we rewrite the page every ten seconds and put fresh serial data into it, then the browser will show it too. It is also possible to put the refresh tag in a PHP file instead of an HTML file and the browser will do the same thing. The PHP file then could also contain a script to read the data from the serial port. This is the point where things become complicated because PHP doesnt natively support serial ports. And even if it did, it would mean that every time the browser requests the (latest version of the) page, the script would have to open the serial port, get some data and close the port again. Furthermore, some Arduino-like systems may reset when the serial port is opened, making the setup useless. Send File Serial Port Python Update A DataA solution to this is to split the process in two subprocesses: bullet list - Process 1: A script to continuously read the serial port and update a data file that is imported by the PHP webpage, see Listing 1. Listing 1: A PHP script that reads data from the serial port and writes it to a file named data.txt. It presents the comma-separated values read from the serial port data in a basic table. The title of the Command Prompt window shows the command to execute the script. Expected format:,id1,value1,id2,value2,CRLF list(startchar,id1,value1,id2,value2,newline) explode(,,data); Create array from list. Doing this solves the serial port opening and closing problem and the data loss resulting from it, but it requires a script to run in the background. If this is a PHP script, then the computer must be able to execute PHP scripts. Also, you need a web server to feed the PHP webpage to a browser. Send File Serial Port Python Code Making UpIf not, the browser will simply show the PHP code making up the page instead of the page itself. The traditional way of getting this done is by installing a so-called AMP or WAMP package. AMP stands for Apache-MySQL-PHP, the W is for Windows, and together they form an all-singing, all-dancing web server. ![]() Besides difficulties in setting up the web server, the main problem we encountered was getting PHP to reliably open a serial port to receive the data. Searching the Internet, there seems to be only one PHP library for serial communications, PHP Serial.
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