As you start to take in all that was involved with building these two aquariums it boggles the mind. At the time of writing the forum thread is 56 pages long and it’s not just filled up with the adoration of [Big Mr Tong’s] fans. He did so much work that every page is packed with progress pictures that cover the range of topics: plumbing, electrical, mechanical, artistic…. wow!
curse project was sparked by a friend giving him a couple of huge acrylic cylinders which were a perfect size for custom aquariums. [Tong] even had a couple of ideas in mind for underwater artwork to fill them with. One is a replica of statue ruins that give you the feeling that the tank is a piece of Atlantis capture for your own entertainment. The other is a fascinating replica of a plumbing stack. You know, the large cast-iron pipes that carry away waste? But these are actually PVC parts with modeling clay accents. They were broken, cut, melted, sanded, and who knows what else, to arrive at this look. The different aquariums feature different lighting techniques. There’s custom-made filter baffles. We could go on and on but we won’t so check out the link at the top for all the details.
In the end he went beyond the original cylinders and built his own square tank for the pipe design. It’s a steam-punk piece so there’s even analog dials to display the vital signs of the habitat.
Just looking to maintain a tank you already own? How about building an automatic chemical dispenser.
We looked through the build log for this in-wall aquarium and were a bit horrified by the before pictures. You look at the original basement photo and there’s wood paneling, an incredibly rusty plumbing stack, and good god what is that wire jumble hanging from the ceiling? But the project’s not about building codes, it’s about the infrastructure that supports this fish tank.
This corner of the basement has a window and the electrical panel in it. It needs to be this big in order to enclose that window, but that offered the opportunity to add in the aquarium while still allowing easy access for feeding and cleaning. Hot and cold water pipes were run over to the location for easy filling. There’s even a drain line running to a utility sink in a different part of the basement for easy cleaning.
This seems like a bit of an upgrade when compared to the coffee pot fish bowl.
The race is on to squeeze cycles out of an 8MHz AVR chip in order to better drive the WS2811 LED protocol.
[Asher] doesn’t want to buy charcoal aquarium filters if he can just build them himself. He filled a couple of plastic drink bottles with charcoal, cut slots in the sides, and hooked them up to his pump system. A gallery of his work is available after the break.
Is the best way to make microscopic sized batteries to 3d print them? Harvard researchers think so. [Thanks Jonathan and Itay]
The Ouya gaming console is now available for the general public. [Hunter Davis] reports that the Retrode works with Ouya out-of-the-box. If you don’t remember hearing about it, Retrode reads your original cartridge ROMs for use with emulators.
Making a cluster computer out of 300 Raspberry Pi boards sounds like a nightmare. Organization is the key to this project.
Hackaday alum [Jeremy Cook] is working on an animatronic cigar box. Here he’s demonstrating it’s ability to listen for voice commands.
A Kelvin clips is a type of crocodile clip that has the two jaws insulated from each other. [Kaushlesh] came up with a way to turn them into tweezer probes.
Continue reading “Hackaday Links: Sunday, June 30th, 2013″
If you are using live plants in your aquarium you must remember to fertilize them at regular intervals. Being a bit forgetful, [Deven] automated the process by building this auto-doser.
There are three different chemicals which are dispensed by the system. They are stored in the drink bottles seen above. Each has a plastic tube which runs up to the dosing motors mounted on the black box. [Deven] sourced the motors from eBay. They are designed for this type of application.
Inside the black box is the Arduino that handles timing and switches the motors. The control circuitry is protected using one MOSFET for each. To keep the fish safe the outflow is directed right into the aquarium pump so that the concentrated chemicals are quickly dispersed through the entire tank.
Now that he’s made it this far he might as well add the ability to feed the fish and control the lighting.
Continue reading “Automated aquarium fertilizer doser”
Beta fish are one of the easiest pets to care for. So when [Derek] gave his girlfriend one for Valentine’s day he thought the job was done. Turns out these tropical pets want 75-80 F water and that’s not going to happen in a plain old bowl when you keep your home thermostat in the mid sixties during the winter. While looking for a simple heating solution he stumbled across the idea of using a cheap drip coffee maker as an aquarium.
The two main components are already in place: a clear glass vessel for the water and a way to heat it. The real trick is to use the heating element to gently warm the water to the appropriate temperature. Perhaps the key piece of the project is that the device already had a timer that shut off the heating element. This translates to easy control with his MSP430 microcontroller as it means there’s a relay present. He also patched into the two seven-segment displays to give him feedback on the temperature currently being read by the RL1003 thermistor which is submerged in the water. You’ll also note that he added a few LEDs to the lid to give the aquarium some inner glow.
[McCaulsey] found an old TV waiting for garbage pick-up on the side of the curb. He brought it home and gave it a new life as an aquarium.
His technique is a little rough, but the finished look is exactly what he was going for. He picked up the cheapest aquarium set he could find at the pet store. It just happens to have a curved front to it which helps to recreate the look of the original CRT. After removing most of the electrical components he went to work on the plastic fins that were used to mount them. Having somehow misplaced his Dremel tool the work was done with a drill and a 1/4″ paddle bit.
Once the demolition was over he started the rebuild by placing a backer in the tank. This is an underwater image that will save him from having to look at the inside of the TV case through the water. A piece of Styrofoam was used as a base to properly frame the front of the tank. The only thing we can’t tell from the build album is how he will manage to feed the fish without taking everything apart again.
Very tiny keyboard
The idea behind the iControlPad2 is pretty simple – just take the slide-out keyboard from a phone, discard the phone part, add two analog sticks and a D-pad, and put Bluetooth in it. It makes for a very small keyboard perfect for controlling a Raspi, a home media server, or even a phone or tablet. I think it’s cool, anyway.
I mustache you a question. Where’s the Hawaiian Shirt?
At her local hackerspace, [Akki] heard someone pronouncing Raspberry Pi as, “Raspberry pee eye.” Of course this joke needed to be taken to its fullest absurdity, so [Akki] gave her Raspi a [Tom Selleck] mustache. Slightly better than the Googly Eyes Arduino shield.
Not giving a Flip about proprietary batteries
When powering a Flip video camera, [Dan] had two choices: regular AA batteries, or a proprietary battery rechargeable through the USB port. When the rechargeable battery is inserted, it closes a small switch telling the Flip it can recharge these batteries. Wanting to put his own rechargeable batteries in his camera, [Dan] closed the switch with a little bit of cardboard, thus allowing him to use his own NiMH rechargeable batteries.
Building operating systems from scratch
A while ago we posting something about a Cambridge professor putting up a tutorial for developing an operating system from scratch on the Raspberry Pi. [Joey] decided to follow these tutorials and has a blog dedicated to his adventures in OS development. It’s not a custom UNIX-inspired OS yet….
Put a quarter in, get a goldfish
[Yooder] over on Reddit spent a week turning a gumball machine into a fish tank. A very nice build that is now home to a few neon tetras. Check out the imgur album for a full build walkthrough.