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15 items tagged "heart"
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16:01
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Hack a Day
[Robert Mibus] took on a project which his kids could present to Mom on Mother’s Day. It’s an LED heart built into a ring or necklace box. The series of white LEDs are animated in a chase pattern. The project let [Robert] push his comfort boundaries by moving past a stock Arduino board. Inside you’ll [...]
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15:01
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Hack a Day
It’s somewhat amazing how these rather inexpensive electronics can augment the functionality of a common stethoscope. This digital stethoscope is using audio processing to add the features. A standard chest piece feeds a condenser microphone which is fed through a pretty standard OpAmp circuit which supplies the ADC of an ATmega644. After being digitized, the heart sound [...]
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6:01
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Hack a Day
Although [Danman] was right on time with his home-hacked Valentines day gift, this article comes to you a little late. With the message on the heart changed, however, it could be a perfect “Sorry I forgot Valentines Day again” gift, so it may still be useful. The concept isn’t that complicated, simply a strip of [...]
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8:05
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Hack a Day
If you’re forever alone we’d guess you’ve long since stopped crying about it. But if you’re still prone to shed a tear on a dateless Valentine’s day this project’s for you. [Mikeasaurus] spruced up this pillow to play a tune when it senses your lonely soul. It’s got a moisture sensor which triggers an audio [...]
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6:01
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Hack a Day
It’s not roses or jewelry, but we hope [Erik]‘s light-up USB heart will be appreciated by his significant other. When the two heart pieces come in contact with each other, each side lights up. [Erik] started his build by cutting two half-heart shaped pieces out of polycarbonate. After drilling a few holes for LEDs and wires, [...]
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12:36
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Hack a Day
This hack came out so well that [Levent] wishes he had tried it years ago. When exercising he wears a Polar heart rate monitor which sends data from a chest strap to his wristwatch. But his exercise bike also has a heart rate readout that depends on your hands touching metal contacts on the handlebars. He set [...]
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8:01
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Hack a Day
This week we continue on with another video in our series about how to program for the ATmega328p processor using C. The ATmega328p is at the heart of many Arduino boards. If you have been using them but want to add some more horsepower to your projects, this series of videos is for you. In [...]
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9:12
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Hack a Day
Many of you are familiar with the Arduino. Many of you hate it…* This post isn’t about the Arduino. It is about the processor that is at the heart of many Arduino boards. If you are in the camp of people who can’t understand why others dislike the Arduino so much, this series is for [...]
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11:01
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Hack a Day
[Wolf] had a Polar brand exercise watch that wirelessly monitored a chest strap that sends it heart rate data. It sounds like there’s some way to transfer data from the watch to a computer, but it’s only meant for use with Polar’s website. He wanted to do a little more with the equipment so he [...]
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11:30
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Hack a Day
[Relwin] has being working on using LEDs as bi-directional devices. The setup above allows him to use each LED as an input, looking for a bright light source and then syncing up with the activity it receives. It is the most basic of communications using the components. The hardware at the heart of the system [...]
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9:37
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Hack a Day
[Simoninns] is hoping to compete in the Sparkfun Microcontroller Contest with this cool little Microsimon instructible. The parts list is pretty small, at around 20 components. At the heart is a PIC 12F683 microcontroller. The whole project is very well documented with schematics, PCB layouts, code, and great pictures. This is a great project that [...]
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10:04
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Hack a Day
We don’t remember where we read it, but our favorite criticism of the iPad is that is does the same things a lot of other Apple devices do. So why wait until April to get your hands on that functionality? [Alexbates] built his own iPad clone using existing hardware and software. This started with an [...]
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13:34
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Hack a Day
I Heart Robotics has posted a guide for building your own clean room. They’ve been clever with their materials, starting with heavy-duty shelving to provide the framework. We like that idea, it allows you to position your workspace at whatever height you desire.
The side walls are MDF painted with white enamel. Light, power, and tools [...]
1337day (was: Inj3ct0r, 1337db)
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