There was a time when getting weather conditions was only as timely or as local as the six o’clock news from the nearest big-city TV station. Monitoring the weather now is much more granular thanks to the proliferation of personal weather stations. For the ultimate in personalized weather, though, you might want to build your own solar powered weather station.
It looks like [Brian Masney] went all out in designing his weather station. It supports a full stack of sensors – wind speed and direction, rain, temperature, pressure, and dew point. About the only other parameters not supported (yet) are solar radiation, UV, and soil moisture and temperature. The design looks friendly enough that adding those sensors should be a snap – if fact, the 3D models in his GitHub repo suggest that he’s already working on soil sensors. The wind and rain sensor boom is an off-the-shelf unit from Sparkfun, and the temperature and pressure sensors are housed in a very professional 3D printed screen enclosure. All the sensors talk to a Raspberry Pi living in a (hopefully) waterproof enclosure topped with a solar panel for charging the stations batteries. All in all it’s a comprehensive build; you can check out the conditions at [Brian]’s place on Weather Underground.
Weather stations are popular around these parts, as witnessed by this reverse-engineered sensor suite or even this squirrel-logic based station.
According to reports from Android Police and ZDNet, you may soon have a new operating system from Google to run on your Raspberry Pi. Details are still extremely sparse, the only description on the GitHub page is “Pink + Purple == Fuchsia (a new Operating System)”. But, here’s what we do know:
The new OS, called Fuchsia, will be based on Magenta, which is in turn built on LittleKernel. That means that, surprisingly, Google will not be using a Linux kernel for the new OS but something more like an embedded RTOS. Although Google is targeting embedded systems, the possibility of being able to run it on a desktop has been mentioned, so it may not be too minimalistic.
Google’s Travis Geiselbrecht has named the Raspberry Pi 3 specifically as one system it will run on, and said that it’ll be available soon. But, it seems Google is aiming to make it run on a variety of ARM devices (both 32 bit and 64 bit), as well as 64 bit PCs. This is a direct effort to compete against other commercial embedded operating systems that are currently available, and especially on IoT devices.
If you’re eager to see what this is all about, you can follow Google’s quick start recipes and see what you can come up with, although details are still sketchy enough that we’re just going to wait a bit.
A decade and a half ago, a developer testified that he was contracted to make code that would swing an election using electronic voting machines. In this year’s presidential primaries, exit polling significantly differed from official results, but only in precincts using unverifiable electronic voting machines. A democracy can only exist if the integrity of the voting process can be assured, and there is no international electoral oversight committee that would verify the elections in every precinct of the United States.
Your vote may not count, but that doesn’t mean you should wait for hours to cast it. This Hackaday Prize aims to end excessive waiting times at polling places, by giving voters a handy app to check the wait times they’re about to face.
The Qubie is a device that simply keeps track of how long voters are waiting in line at their polling place. The tech behind this is extremely simple – just a Raspberry Pi, WiFi adapter, and a battery. The device keeps track of how long voters have been waiting in line by looking at WiFi coming from smartphones. This data, which has a MAC address in there somewhere, is pseudorandomized and checked every minute or so to get a very good idea of how long a specific smartphone has been in range of the Pi. This data is then broadcast out to a server which figures out how long wait times are at a specific polling place.
In the recent California primary election, the Qubie was used at ten polling places in Shasta county. They logged a total of over 30,000 WiFi contacts and after a cursory examination of the data, saw the phenomena you would expect: surges in activity around lunchtime and at the end of the day. It’s a great project that gathers data that should be automated and public, and a great entry for the Hackaday Prize.
When [the-rene] was building an escape room, he decided to have a clue delivered by radio. Well, not exactly radio, but rather an old-fashioned radio that lets you tune to a faux radio station that asks a riddle. When you solve the riddle, a secret compartment opens up. [the-rene] says you could have the compartment contain a key or a clue or even a cookie.
The outer case is actually an old radio gutted for this purpose. In addition, a laser cut box and a servo motor form the secret compartment.
Continue reading “Secret Riddle Retro Radio”
It’s hard to imagine a video game series with more potential for cool prop projects than Fallout. The Fallout series has a beautiful and unique art style that is chock full of potential for real-world builds. Pip-Boys, Fat Mans, and power armor projects abound. But, most of these projects are purely aesthetic: something to stick on a shelf and show off to your fellow geeks.
[themitch22] wanted something he could actually use, and what does a geek use more than their computer? Thus, he set out to create a Fallout-themed PC case, and a Nuka-Cola vending machine was the perfect choice for inspiration.
The attention to detail on the build is astounding, with a functional display (powered by a Raspberry Pi), glowing Nuka-Cola Quantum bottles, and weathering to make it feel like it has survived a nuclear apocalypse. He was also kind enough to post pictures of the entire process, which shows how all of the parts were 3D-printed and assembled.
Need some more Fallout goodness to inspire you next build? Check out this amazing Pip-Boy replica we featured last year.
[thanks to Nils Hitze for the tip]
A Raspberry Pi Zero is down to a price and size where it’s just begging to be integrated into your projects. Unless, that is, if your project involves a lot of 5 V equipment. Then it’s just begging to be fried.
[David Brown] solved this problem by breaking out pins with level converters. He used flat-flex cable and some pin-headers. While he was at it, he added a full-sized USB port and power headers. (Extra hack points are awarded for connecting the USB to the board through pogo pins.)
Continue reading “3.3V Is Not Enough for This Raspberry Pi Zero”
[TK] has a stretch goal for his RC car project — enabling it to recharge on solar power during the day and roam around under remote Internet control at night. It’s like a miniature, backyard version of NASA’s Curiosity rover.
Right now, he’s gotten a Raspberry Pi Zero and a camera on board, and has them controlling the robot over WiFi. He looks like he’s having a great time piloting it around his house. Check out the video down below for (crashy) remote-controlled operation.
We can’t wait to see if solar power is remotely possible (tee-hee!) as an option for this vehicle. The eventual plan to connect it via 3G cellular modem is still off in the future, and will probably demand more of the smarts of the Raspberry Pi than at present. But we love the idea of a long-running autonomous vehicle, so we’re pulling for you, [TK]!
Continue reading “Hackaday Prize Entry: Solar WiFi Rover Roves At Night”