For a small project, I needed a rectangular pulse generator that could generate positive and negative voltage pulses. These...

I was planning to build a 8x8x8 RGB LED matrix, however due to several complications only the half was finished. The frame is 3d printed...

At the moment the FDM 3d printing industry is moving towards 2 print head system, or it is already there. The main issue with this...

I wrote a short text about a super capacitor uninterruptible power supply. I hope this article can inspire some other people too. Link to...

An NFC visit card that shows a predefined webpage. The page can be later adjusted if needed or even locked if no modifications are...