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35 items tagged "alarm"
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3:01
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Hack a Day
Here’s a sunrise alarm clock that keeps perfect time. It was designed and built by [Renaud Schleck] who also published a post detailing the process. As you can see, a series of white LEDs inside of the transparent case which provide the simulated sunrise. As the days get short and the nights longer we do [...]
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11:01
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Hack a Day
[Scott] has a pretty nice alarm system at his house – it will give the operator at his alarm company enough information to determine if it’s a fire alarm, burglary, or just a cat walking in front of a sensor. [Scott] wanted to cut out the middle man and receive notifications from his alarm system [...]
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7:39
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Hack a Day
[Lior] wanted to cancel the monitoring system for his home’s alarm, but he didn’t want to stop using the alarm all together. The trick is to rig up some way to monitor it himself. It would have been simple to have it just call him instead of the alarm company since the system just uses [...]
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13:01
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Hack a Day
When you move you generally load up everything you own into one truck. If your entire life is ever going to get ripped off, this is probably when it’s going to happen. To guard against the threat [Tim Flint] built his own alarm for a moving truck. If someone opens the door on the truck [...]
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6:01
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Hack a Day
This is something of a mandatory donation meter. If you don’t feed it with coins it sounds a very loud alarm continuously. [Piet De Vaere] built the device for a free festival in Ghent, Belgium. The intent is to help raise awareness that although free of an admission price, the success of the event depends [...]
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11:01
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Hack a Day
That awful buzzing/beeping beside the bed in the morning might not seem so bad if it were a cascade of bubbles instead. At least that’s what [Will] is hoping for. He took a child’s toy and turned it into a bubble blowing alarm clock. We’re guessing you’re not going to be too happy with the [...]
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6:01
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Hack a Day
[linux-dude] always wanted to have a binary clock, but he didn’t want to pay someone else to make it for him. Additionally, he was looking for a compact alarm clock he could take on the road, rather than relying on the one in his hotel room. Inspired by other binary clock projects he has seen [...]
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7:02
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Hack a Day
[Brad] was asked by his Sister to design a motion-based alarm that would help her catch her son sneaking out of the house at night. Obviously this didn’t need to be a long-term installation so he decided to throw something together that is only active at night and can be battery-powered. What he came up [...]
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8:04
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Hack a Day
[Corbin] hates fumbling around in the dark with his alarm blaring, looking for the off switch. He was so annoyed with regular alarm clocks that he decided to build his own simpler timepiece. The FlipClock resides in a simple black plastic case lacking any buttons whatsoever. When the alarm goes off, all one needs to [...]
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11:01
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Hack a Day
Nothing makes you feel the pressure of getting out of bed in the morning like a ticking-time-bomb on the bedside table. It may look like it came in the mail from ACME, but all that went into this is some wooden dowels covered in craft paper and an Arduino-compatible board. The 7-segment display can act [...]
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10:03
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Hack a Day
[Thomas] wrote in to tell us about his latest project, the “AlarmTock”. Like many hacks, this was inspired by some outdated hardware, a radio alarm clock from 1992. After finally getting fed up with his old alarm clock, [Thomas'] wife purchased him a new one for around $10 from a local retail store. Although most [...]
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14:06
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Hack a Day
When an earthquake is about to strike in Chile, who do you think is first to sound the alarm? You might be surprised that it’s not the government, but rather a 14 year old boy. After living through an earthquake in 2010 and seeing the devastation this spring in Japan, Chilean teenager [Sebastian Alegria] decided [...]
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12:49
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Hack a Day
Instructables user [willnue] wanted to build a DIY Tweeting alarm system from the ground up, but reconsidered after taking a close look at the scope of such a project. He settled on using an off the shelf security system, taking care of the Twitter interface on his own. He bought a GE 45142 Wireless alarm [...]
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8:08
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Hack a Day
[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 [...]
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8:13
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Hack a Day
If you don’t have a 9-to-5 type of job you might find yourself constantly resetting your alarm clock as your calendar commitments change. [Lucas] finally got fed up with the nightly ritual and decided to build his own alarm clock which has unique settings for each day of the week (translated). The display itself is an [...]
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13:45
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Hack a Day
As a project for an embedded systems class, [Alan] recently built himself a sunrise-simulating alarm clock. You are probably familiar with these sorts of timepieces – they gradually light up the room to awaken the sleeping individual rather than jarring them awake with a buzzer or the radio. Since many commercial units with this feature [...]
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10:01
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Hack a Day
[Markus] had a TI MSP430 sitting around from the LaunchPad kit he bought a while back. He didn’t know what to do with it, but eventually decided that it would make a great miniature alarm clock. He added a shift register to the mix in order to drive his 7-segment LCD display, using two of [...]
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14:20
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Hack a Day
Sometimes security doesn’t need to be overly complex to be effective. Instructables user [1234itouch] recently built a simple laser tripwire alarm that can be mounted virtually anywhere, complete with a keypad for disarming the device. He mounted a photo cell in a project box, along with an Arduino and a 12-button key pad. A laser [...]
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5:04
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Hack a Day
Forum user [Frank] shared with us his recent project, a musical alarm clock. More than just a simple alarm clock, his creation allows the user to load music onto a micro SD card, has alarm settings for each day of the week, and best of all, can be controlled using an IR remote. He uses [...]
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13:13
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Hack a Day
Here’s a way to make sure you don’t leave your Leatherman multitool somewhere. It’s an alarm system that will start a timer when the tool is removed from the holster. After five minutes the module beeps to remind you to put the tool back where it belongs. Annoying? Possibly, but if you’re not done with [...]
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9:13
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Hack a Day
This is the Edison clock, designed by [David Krawczyk]. It shows time in the same way as the multimeter clock, regulating power to two analog needle meters. The feature that makes this one a bit different is the alarm. You can see the series of holes on the front of the base. These have a [...]
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6:25
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Hack a Day
On the shortest day of the year wouldn’t it be nice to wake up to a bright room? This alarm clock with an integrated wake-up light is one way to do just that. It has some nice features, like a wood veneer that allows the seven-segment display to shine through, but hides it when the [...]
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10:10
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Hack a Day
Yep, if you’ve got a button that needs pushing, this is one way to do it. [Travis] combined an old alarm clock with a car door-lock actuator and minimal logic circuitry to make this happen. When the alarm time is reached, the adjustable actuator comes down to press whichever button has been placed under it. [...]
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14:56
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Hack a Day
Waking up at 5:30 in the morning. [Mark Stead] didn’t like the idea either when his chickens started crying to be let out. One simple solution obviously is to eat the chickens build an automatic door opener. The mechanism starts out with an old style mechanical alarm clock, add a geared motor with some creative [...]
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6:41
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Hack a Day
[Madmanmoe64] has really done a fantastic job with this burglar alarm built into a zippo. He crammed a picaxe microcontroller, some IR LEDs, an IR sensor, a battery and various switches in there quite well. It almost closes perfectly, something we think he could remedy if it really bugged him that much. It has several [...]
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12:02
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Hack a Day
This alarm system senses motion and then alerts you by phone. [Oscar] had an old external modem sitting around and, with some wise hardware choices, he came up with a simple circuit to use it. First up is the PIC 16F628A chosen because it doesn’t require an external crystal. This connects with the modem via [...]
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17:00
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Hack a Day
It seems everybody has a different interpretation of the perfect alarm clock. [Loic Royer's] alarm clock is not the loudest, or the smartest, but does have some interesting features. By monitoring several environmental factors like temperature, air quality, humidity, dew point, and your own sleep patterns, this alarm clock can determine the best moment in [...]
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12:00
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Hack a Day
[Bogdan] has some trouble getting up in the morning. A blaring alarm will do the trick but that’s no way to start the day. To get him through the dark winter months he wanted to try a sunrise simulator. He patched into the alarm signal of his bedside clock, intercepting the command from the clock’s [...]
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11:20
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Hack a Day
DPAC, the Dynamically Programmable Alarm Clock, goes far beyond what you would expect an alarm clock to do, yet we find all of its features useful. You can see there are four buttons at the bottom that control the menu scrolling. The second from the left currently reads “Sync”, a feature that the clock uses [...]
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6:22
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Hack a Day
[malikaii] needed to set up some kind of tripwire style alarm system for his office. His bosses kept sneaking in to find him slacking. So, like any loyal hacker, instead of just working harder he built an alarm system. After a failed attempt to recreate an IR alarm circuit he found on the web and [...]
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12:00
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Hack a Day
Need to monitor not only if a fan is running, but if it is running fast enough? Check out this PC fan failure alarm circuit. After several failed attempts using various circuits, they settled on a Schmitt trigger. They even show a couple variations including a manual reset and a relay instead of a buzzer.
[via [...]
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16:38
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Hack a Day
Ever accidentally left your front door ajar and had a pet escape? [BlackCow] came up with a simple solution to this problem. The circuit is fairly rudimentary but a great example of using the basics to get the job done. Now, instead of having an alarm that sounds as soon as the door is open, he has [...]
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6:26
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Hack a Day
[Anders] tipped us off about his hack that re-purposes a smoke alarm as a burglar alarm. Unfortunately, he came home in the middle of a burglary but wanted to be ready the next time someone tries to break in. By cleverly patching into the test button on an old smoke detector he created a circuit-trip [...]
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8:07
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Hack a Day
[Michiel], unsatisfied by his Phillips wake up light, decided just to make his own. He really wanted programmable weekend alarms as well as an easier to find snooze button. At first, his circuit was not reliable enough, losing several minutes per hour, but he gutted another alarm for the 1Hz crystal. After some carpentry, his [...]
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