If there’s any looming, unwritten rule of learning a programming language, it states that one must break in the syntax by printing
Hello, World! in some form or another. If any such rule exists for game programming on a new microcontroller, then it is certainly that thou shalt implement Snake.
This is [__cultsauce__]’s first foray away from Arduinoville, and although they did use one to program the ATtiny85, they learned a lot along the way.
It doesn’t take much to conjure Snake with an ’85 — mostly you need a screen to play it on (an OLED in this case), some buttons to direct the snake toward the food dot, a handful of passives, and a power source.
[__cultsauce__] started by programming the microcontroller and then tested everything on a breadboard, both of which are admirable actions. Then it was time to make this plywood and cork sandwich, which gives the point-to-point solder joints some breathing room and keeps them from getting crushed. Be sure to check it out in action after the break, and grab the files from GitHub if you want to charm your own ‘tiny Snake.
There’s a ton you can do with this miniature microcontroller, and that includes machine learning.
Continue reading “ATtiny85 Snake Game Is A Circuit Sandwich”
Spend enough time riding a bike, and chances are good that you’ll start carrying a few tools with you. Even if you don’t, you’re probably going to use a bag to carry something along, so why not make that bag do triple duty? This convertible backpack/tote bag can charge your phone and provide safety lighting for nighttime rides. The design lends itself nicely to turn signals, too.
This bag was designed to show off the capabilities of Loomia, a line of prototyping parts made with e-textiles and other flexible applications in mind. It can be sewn, fused, or adhered to various substrates including fabric and wood. [AmpedAtelier] is using a Beetle microcontroller to control RGB LED strips using an illuminated Loomia soft switch on the strap. The switch is wired to the microcontroller through Loomia busses running through the strap.
Although Loomia’s site has a deep dive into the capabilities of their technology, it isn’t exactly open source. If that’s what you’re after, take a look at PolySense, which uses piezoresistive dye to create textile sensors.
The world has a bee problem. Honey bees are a major pollinator for all sorts of tasty crops, but an estimated one-third of all colonies in the US have vanished since 2006. These mass disappearances are collectively known as Colony Collapse Disorder, and everything from pesticides to global warming to a new bee virus has been blamed for bees going MIA. Regardless of the cause, keeping the bees that do remain alive and pollinating is important work, and an intelligent bee hive could go a long way toward that goal.
Normally, bee hives are a black – err, white – box, where the bees go about their business without revealing much about it. While bees are amazing animals with an incredibly rich social structure that allows them to, for instance, team together to ventilate a too-warm hive with their wings, or gang up on invading predators, they have their limits, and knowing what’s going on in the hive helps the beekeeper to maintain an optimal environment. [Miguel’s] system, which appears to still be in the prototyping phase, aims to provide the beekeeper with data on temperature and humidity within each hive. GPS tagging allows the beekeeper to track where a hive is, which is important since hives are moved around as various crops begin to flower. The system can even keep track of the comings and goings of bees using photoelectric sensors; while [Miguel] doesn’t go into detail, we imagine that aspect working something like this bee counter we featured a few years back. And being from Portugal, [Miguel] has incorporated cork into the design of the hive, a sustainable material available locally and offering great thermal properties.
Sounds like [Miguel] is onto something here. The bees need all the help they can get, and anything that improves their husbandry will go a long way toward keeping the world fed. We’ll be watching to see where [Miguel] takes this system.
This telepresence robot will never let your Skype callers sneak up on you. [Priit] built the project, which he calls Skype Got Legs, so that his distant friends could follow him around the house during chats. But as you can hear after the break, the electric drills used to motorize the base are extremely loud.
Noise pollution aside, we like the roughness of the hack. It’s utilitarian but seems to work quite well. Commands are sent via the web using a combination of Ajax and PHP function calls. The two drills are controlled by an Arduino via a couple of automotive relays. The drills are powered by their original rechargeable battery packs. So as not to alter those batteries, [Priit] figured out a way to use synthetic wine bottle corks as a connector. They’ve been cut to size, and had tinned wires pushed through holes in them. Now, when he inserts the altered corks they press the wires against the battery contacts. Continue reading “Loudest Telepresence Robot Ever”