For the upcoming PiCockpit v2.0 release, I am preparing a GPIO application.The GPIO entries are table rows – and to configure them, we want to be able to access the detail row by clicking on the configure button:clicking either the chevron or the configure button will lead to the detail row opening:Here is the corresponding [...]
The upcoming picockpit-client reacts to deletion events from the frontend by disabling it’s service (the application will stay installed, however).Similarly, when you decide to run picockpit-client connect again, the service will be re-enabled and started automatically for you.This is possible using the Python DBus interface.the DBus is a bus system for interacting with other applications. [...]
picockpit.com makes heavy use of MQTT. For the upcoming version 2.0 I have decided to switch it to MsgPack.Why MsgPack?MsgPack (actually called MessagePack – packages tend to use MsgPack) is a binary format, aimed at compatibility with JSON, but decreasing file size (which is good for saving bandwidth & server resources).Another advantage: MessagePack allows you [...]
Customers were complaining about not being able to download big files from our websites (e.g. PiDoctor on PiCockpit.com). Initially I could not replicate the issue locally, the files seemed to be downloading fine.After further investigation I determined that the downloads were cutting out after a certain time – depending on your download speed, thus, for [...]
One of the challenges when developing with Crystal is that it is not as forgiving about data types as, say, Python or Ruby.nil will keep you occupied.The following error message:cast from Nil to String failed, at /usr/share/crystal/src/json/any.cr:220:5:220can be solved by:# cast to string, THEN check if it is nil if !(shopify_data[spid]["billing_address"]["address2"].as_s? == nil) name = [...]
While running Chromium with chromium-browser --display=:0 https://www.picockpit.comwill allow you to start Chromium from an SSH connection (and it will output to the main display in the X Server), this will fail when you try to run it with subprocess.Popen in Python:"command": ["chromium-browser", "--display=:0", “https://picockpit.com”](this is part of the JSON format I have specified for PiControl [...]
Security is important for me while developing the picockpit-client. The following applies to Linux systems (but probably is applicable to all Unix like systems, including macOS)Python allows to run external commands using the subprocess module.import subprocessIn the upcoming version of PiCockpit, users will be able to create their own buttons (simply editing a JSON file [...]
I am currently working on an updated picockpit-client version, which should add additional configuration files in /etc/picockpit-client for the individual modules (PiDoctor & PiControl).picockpit-client is a Raspbian package for picockpit.com, linking the Web platform with your individual Raspberry Pi.As Raspbian is based on Debian, the following information holds true for general packaging for Debian and [...]