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have you ever attempted to count the little lines that make up the digits in your "cheap 3 digit voltage meter"... u might find that there are 7, matt wasnt wrong calling it a segment display. Next time try to understand some people know more than you...trust me when I say it takes a lot of effort to find something to like about your build but he did and yet, you give additude in return
I would bet one could take the "black magic" out of it if they read the markings on the DC-DC converters and used google to find the data sheets.
nice dmm, u an eev blog fan? if you havent heard of it check it out. I ask because your choice in meter is one of his recomended ones
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