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Function generators are a handy bench tool to have around, and while you can usually cobble something together that works, it is much more handy to grab a device when you need it. Thats where this function generator sent to us by [Mohonri]comes in. Based around a ATTiny25 and a rail to rail op amp which is able to replicate frequencies from 1Hz to about 40KHz, in square, triangle, and sinewaves … [Read more...]
Two months ago we featured a transceiver based on the Microchip MRF49XA, and a lot of feedback was sent to [hpux735] requesting that some brains be added onto the system. [hpux735] decided that if he was going to do it, might as well go the distance and make a make a native USB transceiver. The prototype model is designed for use with the Atmel AT90USBKey, and uses the LUFA USB framework. The … [Read more...]
Most useless machine We love 'em, and we hope you do too. Here's [Phase2plus'] take on the most useless machine. Scratching like it's 1989 [Nick] spent three bucks at the thrift store and ended up buying days worth of fun with this cassette player. He hacked it to scratch like vinyl. 3D printed jawbone This lady now has her own 3D-printed jawbone. We're not talking … [Read more...]
To us it makes a lot of sense to hold the tablet in one hand and type with the other. That's exactly how [Adam Kumpf] has implemented this one-handed typing interface which was originally conceived by [Doug Engelbart]. As you can see, there's a large contextual area for each finger on your right hand. Letters and navigational keystrokes are input through this interface based on single touches, … [Read more...]
[Abhimanyu Kumar] has been hard at work building and posting about his quadcopter. So far he's published ten installments for this build, letting us relive the adventure vicariously. But it's number 11 that we're really excited about as he plans to share the first free-flight footage in that one. The bug was planted in his brain after hearing that a quadcopter was used to shoot some of the … [Read more...]
Add some fruit to your indoor bounty with this hydroponic strawberry farm. [Dino] whipped this up as his 45th hack a week episode (getting pretty close to his year-long goal). He used parts you probably already have sitting around the house somewhere. But even if you bought everything and used it once you still wouldn't be out much. A plastic storage container serves as the base. [Dino] also … [Read more...]
What would you do if you wanted to demonstrate a linear bearing system? If you're like [Bart] the obvious solution is building a tiny little 3D printer. [Bart]'s Quantum ORD Bot is constructed out of a previous project of his, the MakerSlide linear bearing system. The idea of a printer made out of MakerSlide materials came from [Bart]'s invitation to ORD Camp. The fact that this build went … [Read more...]
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