Collaborate Disseminate
Having a device in your living room that shows weather information is convenient, and building one of those is a great project if you enjoy tinkering with microcontrollers and environmental …read more Continue reading Low Power Challenge: Weather Station Runs for Months Thanks to E-Ink Display
How low can you go? The 2023 Hackaday.io Low-Power Challenge is about doing the most with the least juice – bang for the power-budget buck, if you get our drift. …read more Continue reading Hackaday.io Low-Power Challenge Begins Today
[Petteri Aimonen] created an omnidirectional LED safety light to cling to his child’s winter hat in an effort to increase visibility during the dark winter months, but the design is …read more Continue reading LED Driver Circuit For Safety Hat Sucks Single AAA Cell Dry
There are no weird, specialized components nor esoteric sleep mode tricks behind the long battery life of [Zak]’s WiFi mail slot watcher. Just some sensible design and clever focus on …read more Continue reading Snail Mail Notifier’s Simple Power Management To Maximize Battery Life
Arduino has a library for quickly and easily setting up a simple web server on an ESP8622-based board, and [Tomaž] found that power consumption on an ESP-01 can be reduced …read more Continue reading ESP8266 Web Server Saves 60% Power With a 1 ms Delay
[Trichl] creates a tiny GPS logger, called ‘TickTag’, that was designed as an inexpensive location tracking option for animal studies. The low cost, tiny form factor, and large power density …read more Continue reading Tiny GPS Logger for the Internet of Animals
[David], DL1DN, is an Amateur Radio enthusiast with a penchant for low-power (QRP) portable operations. Recently he was out and about, and found that 10 m propagation was wide open. Not …read more Continue reading Aluminum Foil 20 cm Antenna for 10 m Operation
The operational amplifier, or op amp, is one of the most basic building blocks used in analog circuits. Ever since single-chip op amps were introduced in the 1960s, thousands of …read more Continue reading From Nanoamps to Gigahertz: The World’s Most Extreme Op Amps
[Paul Brown] wants to take advantage of off-site server colocation services. But the providers within [Paul]’s region typically place a limit of 1A @ 120V on each server. Rather than …read more Continue reading Raspberry Pi Server Cluster in 1U Rack-Mount Case
We’ll admit we are suckers for clock projects, and the more unusual, the better. We liked the look of [Peter Balch’s] astronomical clock, especially since it was handcrafted and was …read more Continue reading Astronomical Clock Uses Your Spare Clock Motors