Raspberry pi chromium auto refresh

The current method involves printing on expensive paper and its time consuming and wasteful.

If you want to use RPi with a monitor for displaying any useful information, may be a site, you can use browser in a kiosk mode without tabs and other UI elements. You need to have installed desktop version of OS and Chromium. Of course, you can install desktop environment by yourself, so if you do, then you will have no problems with installing Chromium and setting up boot script correctly. Also you need to install a package unclutter that will hide a cursor. If your site updates its content automatically like a Grafana or TweetDeck, you don't need to set up anything more. If this is your own simple html-site you can add the following string to the head of your site's page to enable auto refresh every 60 seconds.

Raspberry pi chromium auto refresh

Then, we perform the usual Raspberry Pi setups, including things like updating password or enabling SSH. We will auto-run startx later in bash. Now, install the dependencies - X server, a window manager we use the lightweight openbox , Chromium and NodeJS. A quick note here about apt - if you are running commands directly in your terminal, apt offers a much better experience than apt-get! Next, we want to automatically start the X server on login. We can modify the. Note that we have configure the Pi to log into command line above. Combining with this change it will cause the Pi to start an empty X session on boot. A solution here is to restart the browser from time to time, usually at night when the dashboard is not needed. To achieve these, we can implement a service in node. The kiosk mode allows chromium to take over the whole screen with only the webpage and no frames or browsers UIs. You can also use the JavaScript code directly.

I totally started this project because of this post and another one. Of course, raspberry pi chromium auto refresh, you can install desktop environment by yourself, so if you do, then you will have no problems with installing Chromium and setting up boot script correctly. Is it on a timed loop or something?

.

Inspired by Scott Hanselmans wall mounted Family Calendar I installed a monitor with an attached Raspberry Pi Zero W 2 years back and been experimenting with various technical approaches to host the web page for this family board. Currently it is Blazor WebAssembly. This app occasionally breaks or has to recover from a wireless connection loss. Surely I will invest some time in the future to get down to the actual root cause of the problem, but until then I wanted to have a more or less intelligent way of refreshing when the kiosk app breaks. Based on this StackOverflow post I created this Python script evalimage. As my family board has a black background I assume when the most present color is not black, it is broken.

Raspberry pi chromium auto refresh

The current method involves printing on expensive paper and its time consuming and wasteful. Also expensive. I set up a display using Google Docs and I want to be able to change the display throughout the day. The issue is, when I change the doc, it doesnt autorefresh. The other option would be to have employees power down and power up the pis after every party. Not the best solution but it could work. OK this is probably going to blow you mind on how to solve this. Its a web site issue. You need your web site to refresh every XX seconds.

Busselton wa 6280

But if your project is a more complicated or you want to watch a site without content updating feature, you need to set up a script with will reload the page by itself. The other option would be to have employees power down and power up the pis after every party. I totally started this project because of this post and another one. Lastly, we can set up a new service to make sure that this service starts running when we reboot the Pi. Actually mine are accountants in this particular case if that tells you anything. Yes, I run it every 60s in the form of a cronjob. The current method involves printing on expensive paper and its time consuming and wasteful. And I suck at documentation. Its a web site issue. We can modify the. How does it know to press F5? You can also use the JavaScript code directly.

This will kill the Chromium process and the while loop will automatically restart it after one second. To find out the name of the executable, use. Problem: You are running a Chromium Kiosk e.

Would allow you to do this and much more. I need it to be as simple as possible for the end user. The current method involves printing on expensive paper and its time consuming and wasteful. Understand I just glued this function together without much though, it might or just as easily might not work. How does it know to press F5? If this is your own simple html-site you can add the following string to the head of your site's page to enable auto refresh every 60 seconds. The issue is, when I change the doc, it doesnt autorefresh. To achieve these, we can implement a service in node. Do I create some sort of shortcut on the windows pcs tbey use to run the xdotool to the pis? And the cron job had to kick off a script rather than run the xdotool directly. A quick note here about apt - if you are running commands directly in your terminal, apt offers a much better experience than apt-get! Knock on wood. The bad news is I did this last November. The employees would be updating the displays through google docs on a windows workstation.