Welcome

Dear Visitor

Welcome to my private homepage / knowledge base!

My name is J e₁n₂s₃ W a₁g₂n₃e₄r₅, and I’m from Germany (DE). => j3w5.de

I use this site to store miscellaneous informations about technical stuff I create or stumble upon, most of the time related to

• Automation/Digitalisation
• Property/Building Management Systems (PMS/BMS)
• Electric and electronic components
• Planned Obsolescence, and how to counter it
• Edge Computing vs. Cloud dependencies
• 3D Printing (cases and spare parts)

Over the course of the last 5 years, I found many interesting electronic components made in China, but you can barely find any information about them. That’s a pity, and so I started to gather and document my own trove of specs, hoping it will help others as well.

One big issue: While there are many quality components available, very often it’s impossible to find the actual manufacturer, or even a product name. So if you have any additional informations about the components listed, please let me know!

Most of the documents here have online comments enabled, but for legal reasons (Germany…), and to prevent spam, they require moderation before being published.