MagicMirror on Pi Zero W

rmd6502

Nice and thorough tutorial!
I followed most of it, but got off the train at Midori since I already had chromium-browser installed on my pi.
What I did instead was modify package.json to add a serveronly script thusly:

  "scripts": {
    "start": "electron js/electron.js",
    "serveronly": "node serveronly"
  },

then modified serveronly/index.js to kick off chrome thusly:

const spawn = require('child_process').spawn
...
console.log("Ready to go! Please point your browser to: http://" + bindAddress + ":" + config.port);
        process.env.DISPLAY=':0.0'
        var browser = spawn('chromium-browser',['http://localhost:8080', '--kiosk', '--incognito'])

Without --incognito I would get an annoying popup from Chrome telling me it didn’t shut down cleanly, and would I like to restore my window configuration.
I then added

su - pi -c "cd /home/pi/Documents/MagicMirror && PATH=/usr/local/bin:${PATH} && /usr/local/bin/npm run serveronly" &

to /etc/rc.local (how’s that for lazy?)
Anyway, HTH

Mitchfarino

This post is deleted!

Mitchfarino

Thanks for posting this, I’ve followed it through my Pi Zero (not the W)

The minute I try and add any kind of config, I just get a blank screen. Is there something I am missing?

I just tried it with the clock module, and it doesn’t give me anything.

If I corrupt the config file in any way, I get the standard error message saying to create a config.js file.

Do you have any idea what my issue could be?

Hawking

@Mitchfarino
I’m using the Zero W but have exactly the same problem (just a blank screen).
I found that the clock module gives me frequent errors in /var/log/daemon.log (complaining about missing “moment”, similar to my post here) do you get these as well?
However also most of the other modules don’t work for me. What worked for me was to remove all default modules from the config file and just use the very simple “halloworld” module

{
                module: "helloworld",
                position: "top_bar",
                config: {
                        text: "Hello world!"
                }
  }

Then I got at least some text on my empty screen and knew that in principle MM was working. I also could get the externally installed MMM-Globe and MMM-SystemStats running.
But of course it would be good to get the default modules running…

I also got this empty page if I requested the website from my regular PC using Firefox, so I think it is not related to a shortcoming of the midori browser.

I tried Jessie and Jessie Light and different versions of node.js/npm. During the npm install step I get several errors/warnings, however some people said that some of these are normal…

Iseknutz

@Hawking @Mitchfarino
I have the same problem too. I have set up the MM2 on Pi Zero W, everything looks good, but only the modules “helloworld” and “alert” are working. If I try to use the clock module I got a blank, black screen.
Did you solve the problem? Maybe the other modules use any functions that the Pi Zero don’t understand…?

McSorley

Wish I found this earlier! Spent a few days trying to get it running myself using docker but failed at every turn.

I will give this a run through later today and report back my findings.

blueeyed1

I have same problem, too. Any idea of solution?

Hawking

@Iseknutz said in MagicMirror on Pi Zero W:

Did you solve the problem? Maybe the other modules use any functions that the Pi Zero don’t understand…?

No, I didn’t solve the problem yet.
I found out that the working modules (helloworld and alert) don’t use the “moment” js library but the modules that result in a blank screen (calendar, clock, compliments, newsfeed and weatherforcast) do. As the error in my /var/log/daemon also contains “ReferenceError: Can’t find variable: moment” I think it is likely that something went wrong in installation of (the moment.js library of) node. And indeed, the installation with

sudo npm install

gave some warnings and errors in my case. As only the Pi Zeros seem to be concerned it must be something due to our “special” installation. The Pi Zero needs a special (ARM) node variant. The version one gets via

sudo wget http://node-arm.herokuapp.com/node_latest_armhf.deb
sudo dpkg -i node_latest_armhf.deb

is quite old (version 4.2.1; the regular installer of MM2 updates nodes to version 6 if the version of node is below 5.1.0 and in an other thread somebody reported that version 7 is working for a regular Pi as well) However, I also tried to use version 6 and 7, but the result was still a blank screen.
I also get this blank screen if I access the provided data via network using Firefox of a regular PC, so I think it is not related to some issues with the midori browser.

But I’m not not at all an expert in this issue, so I might have done something wrong or it could be an other reason (the working modules are also in other ways simpler than the other ones). I would be happy if somebody could tell us how to solve this issue.

strawberry 3.141

@Hawking you should check if moment weas installed properly it sits in the vendor directory in node_modules, if it isnt there run npm install in the vendor directory

Mitchfarino

@Hawking

I saw errors stating that MM requires a higher version of node, but I couldn’t figure out how to do it.

Could you provide the command you used? Then I’ll try it on mine too and will feed back