Author: Paul

Front Panel Editor: design print-ready panels in your browser

The Front Panel Editor on www.open-hw.net/ lays out cutouts, scales and text for enclosure front panels, and exports a print-ready SVG or PNG plus a drilling template. It runs in your browser, and your designs never leave your computer.

7 min read

I²C Pull-up Resistors: Why 4.7 kΩ Is Not Always the Answer

An I²C bus is deceptively simple: two signal wires, common ground, and usually two pull-up resistors. But the resistors are not arbitrary. They determine how quickly SDA and SCL return to HIGH, and how much current a device must sink to pull a line LOW.

7 min read

AIS receiver with Ethernet interface

Due to my job I am very interested in the merchant shipping world. One of the websites I like a lot is www.marinetraffic.com. This website shows shipping…

3 min read