Fresh hacks every day
[Owen] just finished putting together a portable helicopter game. It's pretty impressive, especially since he used an ATtiny13 microcontroller. That chip uses an 8-pin dip package, offering only five I/O pins (six if you use the reset pin) and 1k of programming space. The game runs on a small cellphone-type LCD screen. The helicopter remains somewhere in the center column of the screen as the … [Read more...]
Those following the ProtoStack tutorials will be happy to hear that there is a new installment which explains Pulse Width Modulation. If you've never heard of PWM before, it's a method of generating a signal that is logic 1 for a portion of the time and logic 0 for the remainder of the time. It is the most commonly used method for dimming an LED, and that's [Daniel's] example in this tutorial. But … [Read more...]
This one's a bit abstract. Remember those LCD games that became quite popular sometime in the 1990's? You know, the ones that had only one game, usually a character that could be moved back and forth to catch, hit, or block objects falling from the sky or being thrown by some villain? [Tobie Nortje] sure remembers them and has built an Arduino controller to play virtual versions of the … [Read more...]
We saw this one a few days ago when it was first bouncing around the interwebs but never took a close look at it. Today, when we ran across a direct link in the tips box it was the promo video (embedded after the break) that won us over. Once you dig into the particulars of The Verbalizer we think you'll agree that this is a hackable conference badge without the pesky need to attend a … [Read more...]
Instructables user [msuzuki777] had amassed quite a collection of batteries over the years, but was finding that some of his rechargeable AA and AAA cells seemed to be at the end of their useful life. After reading some information at the Battery University regarding the restoration process for nickel-based batteries, he figured he might as well try building a battery reconditioner of his … [Read more...]
Hackaday reader [grenadier] wrote in to share a series of tutorials he is working on, where he discusses the basics of electricity and electronics. The first lesson titled, What is Electricity?” has been wrapped up, and is available for free on his site. For any of our regular readers, the lesson will seem pretty basic (and likely full of things to nitpick). However, we imagine his lessons … [Read more...]
[Dino's] project of the week is a backup alarm for your car. This is a feature that has become popular on many large vehicles like SUVs where visibility is an issue when moving in reverse. But it doesn't sound like he was motivated by the need to have this in his own car. Instead, he was looking for something to build using a laser range finder. [Joe Grand] (the brains behind DEFCON badges) has … [Read more...]
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