The 2023 Low-Power Challenge Is Heating Up🔋

How low can you go? And for how long? Show us what you got. [3602421454791242043.png] Wednesday, February 1, 2023 [Compact Geiger Counter Lasts Up to Four Months »]( New Year, New Challenges We've got a brand new contest for you to ring in the new year, and it's a topic we know you'll like -- low power. How low can you go, and for how long? That's the name of the 2023 Low Power Challenge, which runs now through March 21st. Up for grabs are three $150 Digi-Key gift certificates, so fire up those soldering irons and bust out those coin cells. [2022 Hackaday Low-Power Challenge]( Of course, this contest isn't strictly about the coin cells -- think solar cells, e-paper displays, or even LCD art projects. We always get a ton of cool entries when we put contraints on you all, so have at it! While it's true that the $150 Digi-Key gift certificates will be awarded to the three best overall entries, we do have some honorable mention categories for which we may have to come up with some additional prizes -- Sensible Sensors, Artful Art, Battery Buster, Perpetual Motion, and Just How Low? While most of these are self-explanatory, [take a look at the contest announcement post]( for more details. Need some inspiration? Keep scrolling to find some of the great entries we've already seen so far. Highlights from the IO POPULAR BITS [project thumbnail]( [Is The Mail Here Yet?]( [Kevin] has to wonder no more thanks to the cutest possible solution -- a small mailbox inside the house that knows when the mail has come, thanks to a reed switch, an ESP32, and an MQTT server. And if you're wondering whether the little flag pop up when the mail arrives? You bet it does. [project thumbnail]( [TritiLED Should Last About 20 Years On a 2032]( Created for the Coin Cell Challenge, TritiLED was born of necessity and the eye-rolling illegality of gaseous tritium light sources for general-purpose night-time marking use. [project thumbnail]( [ESP Weather Station Uses Deep Sleep and ESP NOW]( This tidy weather station uses a SparkFun weather meter kit plus a couple of ESP32s to beam data back to Home Assistant via MQTT. Hack Chat LIVE CHAT WITH LEADING EXPERTS EVERY WEDNESDAY You Should Host a Hack Chat! If you've been thinking about hosting a Hack Chat, here's your chance. Do you work in an interesting field that people would love to hear about? Do you have a cool project you're working on? Or maybe there's just something you'd like to discuss? Then host a Hack Chat! Check out [our FAQ]( for all the details. And if there's someone you're just dying to see on the Hack Chat, let us know and we'll try to make it happen. [Send us your ideas](mailto:tips@hackaday.com?subject=Hack Chat Tip) and we'll see what we can do. Featured Projects POPULAR BITS [Temperature/Humidity Display Aims to Sip Power From an STM32L0]( [Low-Power, High-Power LoRa Device Can Sleep When It's Dead]( [Long-Range Thermocouple Should Monitor Smoker for Seven Years]( [Experimental Environmental Data Logger Runs on Just 3.2 µA]( Live Events MEETUPS, CONFERENCES AND WORKSHOPS [Trenton Computer Festival - Mar. 18]( The longest running computer festival in the world will return for its 47th year in 2023. We don't have a schedule this far out, but expect a full-day of talks and workshops, with a streaming component for those who can't make the trip to The College of New Jersey (TCNJ) in person. [Los Angeles Maker Faire - Apr. 1]( The downtown LA Mini Maker Faire returns for its third year, this time at the Los Angeles State Historic Park. Mark your calendars and fire up your soldering irons now. Don't you want to have something to show off? [VCF East - Apr. 14 - 16]( The Vintage Computer Festival East will be a hybrid event, with talks streamed worldwide from the InfoAge Science and History Museum in Wall, New Jersey. An absolute must-see event for anyone with a love of vintage hardware. [OSHW Summit 2023 - Apr. 28 - 29]( This year's Open Source Hardware Summit will be held in New York, both remotely and in person. More details to come. [twitter]( [facebook]( [instagram]( [Terms of Use]( [Privacy Policy]( [Hackaday.io]( [Hackaday.com]( This email was sent to {EMAIL} [why did I get this?]( [unsubscribe from this list]( [update subscription preferences]( Hackaday · 61 South Fair Oaks Avenue · Suite 200 · Pasadena, CA 91105 · USA