Fresh hacks every day
[Fernando] sent in a tangential project update that uses an ATtiny45 to play Pong on his television. Last time we looked in on his work he had just finished getting the eight-pin chip to display a big number on the TV via the VGA port. This expands on the idea while he continues to wait for parts. Right now the chip plays against itself, but he's got one input pin left and we'd love to see a … [Read more...]
Servo8bit is a library for AVR microcontrollers that allows you to drive servo motors without the need for a 16-bit timer. Obviously, this is quite useful for smaller chips that only have 8-bit timers and it is specifically targeted at the ATtiny45 and ATtiny85 microcontrollers. The library offers 256 steps of resolution, and can drive up to five servos at one time. Servo control pulses can be … [Read more...]
[Dan’s] office is awfully hot, but he needed some real temperature numbers that he could show the building management office to justify opening a maintenance ticket. He had seen some simple temperature probe examples online, and decided to build his own using a small AVR chip. Based off a similar temperature monitoring example called EasyLogger, his temperature probe uses an LM34 temperature … [Read more...]
Looking at the size of this bristlebot the first thing we wondered is where's the battery? All we know is that it's a rechargeable NiMH and it must be hiding under that tiny circuit board. But [Naghi Sotoudeh] didn't just build a mindless device that jiggles its way across a table. This vibrating robot is controllable with an infrared remote control. It uses an ATtiny45 microcontroller to monitor … [Read more...]
Feeling a bit left out because he didn't have a PICAXE on hand, [Rob Miles] decided to port the Luna Mod code so that it would work on an AVR chip. He chose to build his around an ATtiny45, but also mentions that this is Arduino compatible. This case layout is a bit different from the original Make version, but we like this look just a bit better. It might not satisfy your need for that hipster … [Read more...]
Kids love games of exclusion. This usually manifests itself in games of 'keep away,' having someone 'catch cooties,' or the ever-popular 'No Brian club.' [Rob] wrote in to tell us about the digital cootie detector he built. The cootie detector operates on galvanic skin response. It's actually very similar to an E-Meter, although instead of Thetans this device measures something that actually … [Read more...]
If you are planning on using more than a handful of BlinkMs in a project, you will likely find that their $15 price tag quickly adds up. Instructables user [jimthree] found himself in that position and opted to create his own homebrew version of a BlinkM instead. He calls his creations “Ghetto Pixels”, and while they might not look as professional as the real thing, they get the job done just … [Read more...]
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