STM32 Open Source Multimeter – EmbedBlog

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One of the most essential tools for anybody interested in electrical engineering is certainly a Digital Multi Meter (DMM). The problem is you really never have enough of these – there is always one more voltage or one more current that you need to measure when testing a circuit. So about a year ago I thought, why not try making one? And now, finally, I have a presentable result, which is by no means perfect, but I think it is a really interesting and usable device. So here’s a short video of what I have after three revisions and countless hours of programming and developing:Why?That’s a good question. If you look on Ebay, you’ll find hundreds of multimeters there, from cheap 7 USD no-name ones to a several hundred dollars Fluke ones. So if I want more multimeters, why not just buy more of those cheap ones?Well, there are other reasons why I decided to make my own. First is of course curiosity – I wanted to see what I can achieve with a 32-bit processor, some programming and about…