Custom Dog Door Prevents Culinary Atrocities

April 17, 2024 by 32 Comments

Riley, an 8 lb pug, has more beauty than brains, and a palate as unrefined as crude oil. While we hate criticizing others’ interests and tastes, his penchant for eating cat poop needed to stop. After a thorough exploration of a variety of options, including cat food additives that make its excrement taste worse (HOW? WHY? Clearly taste wasn’t the issue!), automatic litter boxes that stow the secretions, and pet doors that authenticate access to the room with the litter box, [Science Buddies] eventually settled on a solution that was amenable to all members of the family.

The trick was in creating a door mechanism with a blacklist of sorts rather than a whitelist. As the cat didn’t like to push the door open itself, the solution needed to have the pet door open by default. A magnet on Riley’s collar would trip a sensor attached to an Arduino that would control servos to swing the door shut immediately if he attempted to access the defecated delights. Of course safety was a consideration with the door swinging in Riley’s face.

We’ve covered a few pet screeners, including one for the same purpose that used IR sensors (but a much bigger dog also named Riley), and a flock of solutions for chickens. We’ve also seen [Science Buddies] in previous posts, so they’re not on the tips line blacklist.

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DIY Chicken McMansion Is A Real Hen House

July 6, 2022 by 9 Comments

You might recognize [Robert Dunn] from his YouTube channel Aging Wheels, where he hacks on all sorts of automotive delights. On his other channel, Under Dunn, [Robert] tends to focus on building things. In this case, his nine chickens grew a bit, and he needs a new coop for his twenty chickens, three turkeys, and two geese. The build, the video, and the outcome are all typical of [Robert Dunn]’s videos- that is to say fun, informative, and easy to follow along with.

Rather than building on to his existing coop that was designed for less than a dozen chickens, [Robert] decided to start from scratch. Using CAD to overcomplicate matters at every possible step, the build flies together with impressive speed- but never quite takes off until the very last moment.

The video highlights all the things we want to see: The CNC’ing, the fails (including one very large fall-flat-on-your-face moment), the recovery from the fails, routed butt joints, and screen door handles. It’s also got all of the overengineered goodness we’ve all come to love. You’ll also enjoy his solution to moving, then fixing, then finally installing the coop.

If you enjoyed this, and watching people fail, check out [Robert]’s Fail Of The Week that we featured a while back.

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Robot Delivery To Your Door

December 29, 2021 by 21 Comments

While online shopping was already very popular in South Korea, it has become even more so as people stay home more during the pandemic. Several robotic delivery services have launched around the city, such as 7-Eleven using the Neubie robot by Neubility, the GS25 convenience store using LG’s CLOi ServeBot, and the Baemin food delivery service using the Delidrive robot.

Love it or hate it, in the dense population of big cities like Seoul the vast majority of people live in apartment complexes. This lends itself well to these robot delivery projects. In fact, many of these pilot projects are only available in one apartment complex, which can consist of ten to twenty 15+ story buildings. Training your robot to navigate the sidewalks, operating the doors, calling the elevators, and buzzing the customer’s home intercom is an easier task when dealing with only one campus.

Some projects are more ambitious, like another Neubility system operating on the Yonsei University Songdo City campus. You can order fried chicken and have it delivered by a Neubie robot, which comes to your address along the sidewalk at a brisk 5 to 6 km/h. There are some issues, however. First of all, government regulations haven’t quite kept up with the technology. These services are basically operating case-by-case, temporary waiver basis. They are not allowed to operate on the streets, and when driving on the sidewalks they have to avoid bumping into people.

We wrote about a prototype RC truck delivery system last year, and covered Amazon drones and Automating Freight Delivery as well. These all show promise, but are not mainstream yet. The vast majority of your orders are still delivered by a person. Will these automated delivery services eventually replace humans? Let us know your thoughts in the comments below.

Appeasing Chicken Tastes With 3D Printing

July 23, 2020 by 4 Comments

Like most of us, [Hunter] and his partner [Katyrose] have been in quarantine for the past few months. Unlike most of us, they spun a 3D printed chicken playground design hackathon out of their self-isolation. The idea is simple: to build a playground full of toys custom-tailored to appease each chicken’s distinctive taste. The execution, however, can be proven a little tricky given that chickens are very unpredictable.

For each of the four select chickens in their coop, the couple designed separate toys based on their perceived interests. One, showing a fondness for worms, inspired the construction of a tree adorned with rice noodles in place of the living article, and moss to top it off. For late-night entertainment, the tree is printed in glow-in-the-dark filament. The others were presented with a print-in-place rotating mirror disguised as a flower, and a pecking post covered in peanut butter and corn. As a finishing piece, the fourth toy is designed as a jungle gym post with a reward of bread at the top for the chicken who dares climb it. Since none of the chickens seemed interested in it, they were eventually hand-fed the bread.

With no other entries to their hackathon, [Hunter] declared themselves as the winners. The 3D files for their designs are available for their patrons to print, should they have their own chicken coops they want to adorn. While the hackathon might’ve been a success for them, their chickens in particular seemed unimpressed with their new toys, only going to show that the only difference between science and messing around is writing it down, or in this case, filming the process. If you’re looking for other ways to integrate your chickens into the maker world, check out this Twitch-enabled chicken feeder, or this home automation IoT chicken coop door. Meanwhile, check out the video about their findings after the break.

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Have Alexa Open Your Garage Door

September 3, 2017 by 17 Comments

[yoyotechKnows] built an Alexa-controlled garage door opener after his Liftmaster stopped working. Now all he has to do is holler at his mobile phone and he can raise and lower his garage doors at will.

His project is based around a Photon WiFi kit, with a pair of LCC 120 digital relays triggering the two doors, reed switches, and a serial-equipped LCD to display door status, with Alexa, IFTTT, and OpenHab to process the commands. You can find his code in the project writeup.

Currently he has a LCD display informing him of the status of each door, hot glued a reed switch to keep track of whether each one is closed. This might seem a little bit extraneous since he can also just look at the doors from within the garage. However, he’s thinking about putting the display inside his house. But couldn’t he just ask Alexa?

We love us our home automation here at Hackaday, with everything from swimming pools to chicken coops rigged for app control and datalogging.

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Aquarium Light Mimics The Outdoor Sky

March 24, 2016 by 5 Comments

[OlegZero] has some pet fish in his basement, and decided to work on a little project for them — an aquarium light that mimics the outdoors. He calls it the FishLight project.

His goal was to create a light panel that could imitate the color of the outdoor sky (approximately) using an RGB LED strip. During normal operation, the LEDs cycle through the colors of day, from dusk to dawn using an ATmega88 microcontroller. After his girlfriend saw what it could do, she quickly came up with the idea to add a cityscape to the background to turn it into a piece of attractive decor for their home.

Still fail to see the point of going to this much effort for a few fish? Well, besides it turning into a rather nice artistic light for their basement, the concept can be applied to other animals as well. Like encouraging chickens to produce more eggs by making the days “longer” with artificial light. As it turns out chickens produce less eggs when the days get shorter — an easy fix with something like this!

Automatic Garage Door Opener Works For Your Cat

February 17, 2015 by 14 Comments

Using an Arduino or Raspberry Pi to perform a task in the real world is certainly a project we’ve seen here before, and certainly most of these projects help to make up the nebulous “Internet of Things” that’s all the rage these days. Once in a while though, a project comes along that really catches our eye, as is the case with [Jamie’s] meticulously documented automatic garage door opener.

This garage door opener uses an ATMega328 to connect the internet to the garage door. A reed switch is installed which lets the device sense the position of the door, which is relayed back to the internet. [Jamie] wrote an Android app that can open and close the door and give the user the information on the door’s status. One really interesting feature is the ability to “crack” the garage door. This is done by triggering the garage door opener twice with a delay in between. From the video after the break we’d say this is how [Jamie’s] cat gets in and out.

We love seeing projects that are extremely well documented so that anyone who wants to make one can easily figure out how. Internet-connected garage door openers have been featured in other unique ways before too, but we’ve also seen ways to automatically open blinds or chicken coops!