Archive for August 2019
PiCockpit v.0.11.0 & picockpit-client v0.15.6 released–live pi monitoring!
Freshly released for you – now picockpit.com offers you a possibility to monitor up to 5 Pis from everywhere on this planet (with an Internet connection) for free! This is how it looks like: The data (under the heartbeat button) is updated live, currently every second. How do I start monitoring my Pis for free?…Weiterlesen
Specifying Debian dependency between two versions & apt-get installing .deb files
These informations are probably of most interest to package maintainers: Dependency on specific package versions Here is how to specify a python3 dependency between version 3.5 (equals to or later), and 3.6 (must be earlier) in debian/control: Depends: python3 (>= 3.5), python3 (<< 3.6) So you basically specify two dependencies. Note, this will not work…Weiterlesen
picockpit.com new version v.0.11.0 is live!
This new version of picockpit.com supports live streaming of MQTT measurement data from your Pi to your webinterface (desktop or mobile). By clicking on the info icon, you can see the public and private IPs, the serial number and the Pi model: The online state of the Pi is displayed with the online badge. Currently…Weiterlesen
PiCockpit preview: Sensors
Preview This is in the upcoming version of PiCockpit: All these values are updated live (currently each second) using MQTT messages to PiCockpit. The value for Root partition total available is static, as it is the total size of the root partition. Some values are rendered in a prettier (but less precise) view in the…Weiterlesen
PiCockpit showing CPU usage & temperature
The CPU information is updated live in your webinterface. No matter where your Pi will be in the world, if it has an Internet connection and can talk to the PiCockpit MQTT Broker, you will be able to monitor it. CPU Loaded with two hogs: The 51 % refers to overall system load – that…Weiterlesen
PiCockpit: online / offline states, and MQTT
In the upcoming PiCockpit release, we will have an online status tracking for Pi’s connected via picockpit-client. The online function is realized by MQTT’s Last Will & Testament feature. You can test it by unplugging your Pi from the network. I unplugged the Pi at: 17:59:10 At about 18:00:05 it was shown as offline: Why…Weiterlesen
VerneMQ how to disconnect clients forceably per command line
There is a command vmq-admin session show which will show you the currently connected clients: Unfortunately, this output is truncated for a total width of 80 characters (no matter how many would fit) and there is currently no indication that it is. See this VerneMQ Github issue: https://github.com/vernemq/vernemq/issues/1200 To disconnect clients you need the client_id…Weiterlesen
Paho failure to subscribe
Problem AMQJS0005E Internal error. Error Message: Cannot read property ‘show’ of undefined This error is shown sporadically, especially when you Shift-Reload the whole page. Solution I have a Vue.js Plugin to show “toast” messages (Vue.toasted). I currently use it for debugging purposes. Everything worked fine initially, as my code was executed after Vue was initialized…Weiterlesen
First message from picockpit client rendered!
Today, 7.8.2019, at around 18:16 the code is in place for the first message to have been rendered: Thus the Pi “Alexander” is shown as online. Thanks to the magic of vue.js, MQTT, VerneMQ, AdminLTE, Crystal Lang, Python, Paho, AXIOS and much much more! This is the effort of around 320 hours of work…Weiterlesen
Getting POST requests to work with Axios, Kemal (crystal lang), vue.js
In picockpit.com, I am using AJAX requests to communicate with the backend for update operations. For instance, if you want to change the name of this Pi, you would select: which shows an inline form: how to show this inline form with vue.js is besides the point of this post (even though very interesting!) Clicking…Weiterlesen