How can I use JavaScript to read and display temperature data from a text file generated by a C program? The information should update every five minutes.
Based on my experience, using JavaScript’s fetch API is a reliable way to retrieve the temperature file. Assuming your server can serve the file through HTTP, you can set up a function that calls fetch to gain the file’s content and then update your DOM element with the new data. Another key aspect is managing the refresh period; using setInterval with a 300000 millisecond delay is a straightforward solution. This approach ensures that your data is updated regularly, keeping your display in sync with the C program output.
hey, try using xhr to load the file and then update the page content. i set a setInterval for 5 min refresh. make sure your server allows cors so it works as expected
Based on my own experience with updating live data, I’ve found that using JavaScript’s Fetch API works well, especially when combined with periodic refreshes. I implemented a similar solution in a project where the temperature data was updated every few minutes by calling fetch to get file contents uploaded by a C program. One thing I learned is that you need to address caching, either device by adding random query parameters or setting proper HTTP headers. This helped ensure the data refreshed cleanly without displaying outdated measurements.