It’s taken as canon that girls mature faster than boys. In reality, what happens is that boys stop maturing at about age 12 while girls keep going. And nothing tickles the fancy of the ageless pre-teen boy trapped within all men more than a good fart joke. To wit, we present a geolocating fart tracker for your daily commute.
[Michel] is the hero this world needs, and although he seems to have somewhat of a preoccupation with hacks involving combustible gasses, his other non-methane related projects have graced our pages before, like this electrical meter snooper or an IoT lawn mower. The current effort, though, is a bit on the cheekier side.
The goal is to keep track of his emissions while driving, so with a PIC, an ESP8266, a GPS module, and a small LCD display and keyboard, he now has a way to log his rolling flatulence. When the urge overcomes him he simply presses a button, which logs his location and speed and allows him to make certain qualitative notes regarding the event. The data gets uploaded to the cloud every Friday, which apparently allows [Michel] to while away his weekends mapping his results.
It turns out that he mainly farts while heading south, and he’s worried about the implications both in terms of polar ice cap loss and how Santa is going to treat him next month. We’re thinking he’s got a lock on coal — or at least activated charcoal.
Our beef with this project is obvious – it relies on the honor system for input. We really need to see this reworked with an in-seat methane detector to keep [Michel] honest. Until then, stay young, [Michel].
In the late 1940s and early 1950s, Europe was still struggling to recover from the crippling after-effects of war. In Britain it is referred to as the “austerity period”, with food still rationed and in which “make do and mend” was very much the order of the day. The consumer boom of the late 1950s and 1960s was very far in the future, and if you were a hardware hacker your source materials were limited to whatever you could find from war surplus or whatever prewar junk might come your way. This was a time in which the majority of adults had recently returned from war service, during which they had acquired practical skills through the necessities of battle that they sought an outlet for in peacetime.
One field that benefited from this unexpected flowering of creativity was that of motor racing. Before the war it had been an exclusive pursuit, with bespoke cars at famous circuits like the banked track at Brooklands, in Surrey. In a reflection of the wider social changes that followed the war the motor racers of the post-war years came from humbler backgrounds, they raced homemade specials made from tired-out prewar motors on wartime airfield perimeter tracks like the one at Silverstone which still hosts Formula One racing today.
It’s late, and you’re lost in a sea of cars trying to remember where you parked. If only your vehicle had a glow-in-the-dark antenna to make it easier to find, you wouldn’t be in this situation. Faced with just such a problem himself, Instructables user [botzendesign] has put together a handy tutorial to do just that.
[botzendesign] first removed the antenna and lightly abraded it to help the three coats adhesion promoter do its job. A white base coat of vehicle primer was applied — lightly, so it doesn’t crack over time — and once it had set, three coats of Plasti Dip followed. Before that had a chance to dry, he started applying the glow-in-the-dark powder, another coat of Plasti Dip, repeating four more times to ensure the entire antenna had an even coat of the photo-luminescent powder and then letting it dry for 24 hours. Continue reading “Glow-In-The-Dark Antenna Helps You Spot Your Car At Night”→
Nobody’s perfect. Sometimes you’re up late at night writing a blog post and you stumble upon an incredible story. You write it up, and it ends up being, well, incredible. IEEE Spectrum took the bait on this video (embedded below) where [Keran McKenzie] claims to have built a self-driving car for under $1,000 AUS with Arduinos.
The video is actually pretty funny, and we don’t think it’s intended to be a mass-media hoax as much as a YouTube joke. After letting the car “take over” for a few seconds, it swerves and [Keran] pretends to have hit something. (He’s using his knees people!) There are lots of takes with him under the car, and pointing at a single wire that supposedly makes the whole thing work. Yeah, right.
The build is pretty cool. She had to give up her passenger seat, but it’s a small price to pay for independence. He removed the door paneling on the passenger side. Then he welded on a few mounting points. Next he had to build the device.
The well-built device has a deceptively simple appearance. The frame is made from CNC milled panels and the ever popular aluminum extrusion. It uses a 12V right angle drive and some belting to lift the chair. There’s no abundance of fancy electronics here. A toggle switch changes the direction of the motor. There are some safety endstops and an e-stop.
Now all she has to do is strap the walker to the door. She picks the direction she wants the lift to go and presses a button. After which she walks the short distance to the driver’s seat, and cruises away.
It wasn’t the first time his group had worked together on something a little different, such as a robot that can deploy an antenna by climbing poles. However, this one had a time limit and they ended up trying to fit it all in the week before the race.
They had a pretty good design. [ITMAN496] had modeled the entire frame in SketchUp and even did physics simulations to get the steering just right. However, the best laid plans of mice and men often don’t fully take into account just how hard it is to get the motor drivers they bought working.
In the end, what they really needed was time to test. The setscrews couldn’t hold the motor on the shaft, the electronics needed debugging, and one of the belts was too long. The design was solid, but without time to percussively maintain the last bugs out of the system, it just wasn’t going to run.
[ITMAN496] is taking this lesson properly; he’s already planning for next year’s run, but this time he’ll have time to test. We must commend him — the build under these time constraints was still impressive. Even more so that he took the time to document everything while it was happening, and to share the story of shortfall after the fact. We’re always on the hunt for documented fails (the best way to really learn something).
[Greg’s] hack uses a Raspberry Pi Foundation display, which includes a touch screen, so you don’t need a mouse or other controls. Node.js displays the speed, RPM, and engine temperature (check engine lights and other warnings are planned additions) through a webpage displayed using Chromium. The Node page is pulling info from another program on the Pi which monitors the CAN Consult bus. It would be interesting to adapt this to use with more futuristic displays, maybe something like a pico projector and a 1-way mirror for a heads-up display.
To power the system [Greg] is using a Mausberry power supply which draws power from your car battery, but which also cleanly shuts down the Pi when the ignition is turned off so it won’t drain your battery. When you throw in an eBay sourced OBD-II Consult reader and the Consult Dash software that [Greg] wrote to interpret and display the data from the OBD-II Consult bus, you get a decent digital dash display. Sure, it isn’t a Tesla touchscreen, but at $170, it’s a lot cheaper. Spend more and you can easily move that 60″ from your livingroom out to your hoopty and still use a Raspberry Pi.
What kind of extras would you build into this system? Gamification of your speed? Long-term fuel averaging? Let us know in the comments.
UPDATE – This post originally listed this hack as working from the OBD-II bus. However, this car does not have OBD-II, but instead uses Consult, an older data bus used by Nissan. Apologies for any confusion!