Adding Variometer Functionality to a GPS

Flying a glider, or similarly piloting a paraglider or hang glider, can all be pathways into aviation with a lower barrier of entry than powered flight. Sacrificing one’s engine does …read more Continue reading Adding Variometer Functionality to a GPS

Ethersweep: An Easy-To-Deploy Ethernet Connected Stepper Controller

[Neumi] over on Hackaday.IO wanted a simple-to-use way to drive stepper motors, which could be quickly deployed in a wide variety of applications yet to be determined. The solution is …read more Continue reading Ethersweep: An Easy-To-Deploy Ethernet Connected Stepper Controller

Calculate Like It’s 1989 With This HP15C Emulator

An HP15-C emulator PCB

Back in the day, your choice of calculator said a lot about your chops, and nothing made a stronger statement than the legendary Hewlett-Packard Voyager series of programmable calculators. From …read more Continue reading Calculate Like It’s 1989 With This HP15C Emulator

Squeezing Every Bit from an ATMega

While the ATMega328 is “mega” for a microcontroller, it’s still a fairly limited platform. It has plenty of I/O and working memory for most tasks, but this Battleship game that [thorlancaster328] has put together really stretches the capabilities of this tiny chip. Normally a Battleship game wouldn’t be that complicated, …read more

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Minimalist Low Power Supercapacitor Sensor Node

One of the biggest challenges for wireless sensor networks is that of power. Solar panels usually produce less power than you hoped, especially small ones, and designing super low power circuits is tricky. [Strange.rand] has dropped into the low-power rabbit hole, and is designing a low-cost wireless sensor node that …read more

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