In this interview, Chris Urban shares his work in automation, his DIY PLC trainers, and how his social media presence helps inspire other makers.

The chances are that many of you will have made an FM “bug” style transmitter, a simple one-transistor oscillator usually ...

bypassing tedious tasks like manual data entry or copy-pasting. In our experience, Adobe Acrobat remains the best PDF to Excel converter - as well as for a variety of other Office filetypes.

The best free PDF editor lets you create, manage, and share files completely free of charge. My team and I reviewed all the top free PDF editing software and these are my top recommendations.

The first Fnirsi tool that landed on my desk in 2025 is the LCR-P1 Transistor Tester, which reminds of some ... in my stock), but the LCR-P1 can go up to 32 V (according to the manual). Below the ...

How important are your high school grades for your future? By The Learning Network Looking for new ways to get students reading and responding to nonfiction? Try these exercises for discussion ...

The past few months have been tough for new car buyers who like to shift their own gears. Some of the machines we could always depend on to offer three pedals, like the Mini Cooper and VW Golf GTI ...

There is a race to see who can bend the PDF file format to do the most impressive thing. Considering the more-than-30-year-old shooter, Doom, has been ported to many unexpected places, it was ...

A high school student found a way to run the classic PC game Doom from within a PDF file by leveraging the format's support for JavaScript and the Chromium browser engine.

The optocoupled digital outputs are isolated Darlington transistor outputs and essentially behave as a switch that can sink up to a maximum of 150 mA - under 50mA is recommended by ElectroDacus (ref).