Author Archives: M. Eric Carr

Reverse Shoplifting

Engineers love gadgets. Sometimes, we even anthropomorphize them a bit and get attached to pieces of vintage gear that we don’t really use anymore. The lure of the New And Shiny is strong, yes, but there’s something about the glow … Continue reading

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Multi-material 3D Printing with Palette+

Mosaic’s Palette+ adds four-color capability to most 3D printers. Here’s how the process works. Continue reading

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Component Tester

The microcontroller revolution has accelerated the development of tools available to the electronics industry. Multimeters (recently, DMMs) and oscilloscopes (recently, DSOs) have been a staple of electronics workbenches for decades, along with signal generators, frequency counters, and other specialized tools. … Continue reading

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NodeMCU

New toys are always such fun, especially when you find a replacement for a component that has more features, better specs, and costs half as much. The Arduino Uno is deservedly popular. It makes introductory embedded system design easy, and … Continue reading

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