Posted in Software Development, Tool Hacks Tagged atanua, digital logic, Logic simulation, software, software licensing, tools Post navigation It’s more than enough to learn digital logic on, and good enough for a test bed for some odd and bizarre projects you might have floating around your head. Atanua simulates individual logic gates, 74-series chips, and even an 8051 microcontroller in real-time (up to about 1 kHz), with enough buttons, LEDs, and displays to do some very cool stuff. While this isn’t great news for, if you’re looking for a neat tool to learn digital logic, you now have a very nice free option. is leaving the option to buy a license for Atanua open, and anyone who wants to see this bit of software open sourced could buy a license or hundred. The code is a little bit of a mess at the moment, and cleaning it up will require a bit of work. This isn’t an ideal situation, but is strongly considering open-sourcing Atanua. This neat little logic simulator has reached the end of its life, the license is free, and is out of the business. You can’t develop software with a pittance, so now is giving Atanua away. has sold only about 60 licenses for Atanua, netting him only a few thousand Euro. built a nice little graphical logic simulator that has tens of thousands of downloads, and is being used in dozens of universities. It looks like had a point with his Open Letter to Hobbyists. There’s a reason you don’t see shareware these days – nobody pays. The history of software is littered with developers that built a great product, gave people a reasonable option to license the software, and ended up making a pittance.
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