Collaborate Disseminate
We’re suckers for good-looking old-school calculators, so this interesting numerical equation-solving calculator by [Peter Balch] caught our attention. Based around the ESP32-WROOM-32 module and an LCD, the build is quite straightforward …read more Continue reading Solve: An ESP32-Based Equation Solving Calculator
Smartphones have replaced a desktop calculator for most folks these days, but sometimes that tactility is just what you need to get the mathematical juices flowing. Why not spruce up …read more Continue reading Mechanical Switch Sci-Calc is Also a Macropad
In an educational project with ethically questionable applications, [ChromaLock] has converted the ubiquitous TI-84 calculator into the ultimate cheating device. The foundation of this hack lies in the TI-84’s link …read more Continue reading Internet Connected TI-84 To Cut Your Academic Career Short
While Texas Instruments maintains dominance in the calculator market (especially graphing calculators), there was a time when this wasn’t the case. HP famously built the first portable scientific calculator, the …read more Continue reading Reverse Time Back to the Days of RPN
For vintage calculator fans, nothing strikes more fear than knowing that someday their precious and irreplaceable daily driver will become a museum piece to be looked at and admired — …read more Continue reading Slim Tactile Switches Save Classic TI Calculator with a Bad Keypad
Back in 1976, when calculators were not common or cheap, a company named MEGO made the Star Trekulator: a calculator sporting a Star Trek theme. However, it was a bit …read more Continue reading Retro Calculator Panders to Trekkies… or Trekkers
We’re big fans of calculators, computers and vintage magazines, so when we see something at the intersection of all three we always take a look. Back in 1966, Electronics Illustrated …read more Continue reading Early “Computer Kit” Really Just a Fancy Calculator
At the start of the 1970s the pocket calculator was the last word in personal electronics, and consumers in Europe looked eagerly towards Japan or the USA for a glimpse …read more Continue reading The First European Pocket Calculator Came From Yugoslavia
In the era of the smartphone, an electronic calculator may seem a bit old-hat. But they continue to hold a fascination in our community, both when used for their original …read more Continue reading Classic Calculator Goes RPN, With New Brain
Before there were home computers, among the hottest pieces of consumer technology to own was a pocket calculator. In the early 1970s a series of exciting new chips appeared which …read more Continue reading Decoding a ROM From a Picture of the Chip