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Move Aside Mercury: Measuring Temperature Accurately with an RTD
Temperature is one of the most frequently measured physical quantities, and features prominently in many of our projects, from weather stations to 3D printers. Most commonly we’ll see thermistors,...
View ArticleQuartet of SMD Resistors Used to Sense Z-Axis Height
Here’s a neat trick for your next 3D-printer build or retrofit: a Z-axis sensor using a DIY strain gauge made from SMD resistors. We’re betting it could have plenty of other applications, too....
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Finding the Right Hack is Half the Battle
Sometimes you just get lucky. I had a project on my list for a long time, and it was one that I had been putting off for a few months now because I loathed one part of what it entailed — sensitive,...
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Circuit VR: The Wheatstone Bridge Analog Computer
We are always impressed with something so simple can actually be so complex. For example, what would you think goes into an analog computer? Of course, a “real” analog computer has opamps that can do...
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An In-Depth Look at the Haptic Smart Knob
At Hackaday, we love those times when we get a chance to follow up on a project that we’ve already featured. Generally, it’s because the project has advanced in some significant way, which is always...
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Urine Flow Measurement Made Accessible With uroFlow
If you’re dealing with a chronic illness, the ability to continuously monitor your symptoms is indispensable, helping you gain valuable insights into what makes your body tick – or, rather, mis-tick....
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A Wheatstone Bridge Matches Your Pots
Sometimes the simplest hacks can be the most useful or ingenious, and such is the case with [Keri Szafir]’s method of ensuring that potentiometers used in audio devices are matched. If you consider a...
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