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Scientific Research High Altitude Balloon for Fun and Profit. High-altitude balloons are unmanned balloons, usually filled with helium or hydrogen, that are released into the stratosphere, generally attaining between 60,000 to 120,000 feet (11 to 23 mi; 18 to 37 km).

Scientific Research High Altitude Balloon for Fun and Profit

Such a flight allows for the collection of an enormous amount of interesting scientific data. For our balloon, we chose to measure Barometric Pressure, Relative Humidity, Temperature, Battery level Voltage (to see the effects of temperature on battery life), Altitude, and Radiation (measured in CPM, count per minute). Out of all of these measurements, we found radiation to be the most interesting, as there was a HUGE difference in the radiological readings obtained on the ground versus those taken as the balloon increased in altitude.

Finally, we also took 1080p video of the flight, using a GoPro HERO 4, which provided some amazing footage of earth from near-space altitudes. Robo-Mobile - A Homemade Bluetooth Robot. Background.

Robo-Mobile - A Homemade Bluetooth Robot

Rechargeable LED Illuminated NightShoe. An Absolute Beginners Guide To The Intel Edison. Hey there!

An Absolute Beginners Guide To The Intel Edison

I recently received an Intel Edison board from Instructables, as a nice gift. If your wondering what that is, the Intel Edison is a tiny computer the size of an SD card (that's seriously small), for electronics and computer hobbyists out there. It has dual-core Atom CPU, and includes WiFi and Bluetooth in one heck of a tiny package. The Edison goes well with its breakout board (which I used), as it makes it easier to program and use. It runs Linux, and supports Arduino, Python, Node.js and other programming languages as well.

Tableau de bord Intel IdO Analytics. 3D Printer. Compact Arduino GPS Speedo + and more. Sound Localization using Arduino -Use Arduino for Projects. Well, it’s elementary simple in theory, how to do sound localization based on phase difference of signals, that received by two spatially distant microphones.

Sound Localization using Arduino -Use Arduino for Projects

The Devil, as always, in details. Get your fingerprint. Finger tambour sans fil. I came across these Force Sensitive Resistors.

Finger tambour sans fil

I like them a lot and I wanted to do something with them, may be making them more usesable than standing on the breadboard. Few months ago, I created the pocket-sized RevIO - Arduino Compatible and having fun with it since then. While playing with these two, I decided to put them together! To complicate things further, I wanted to use them wirelessly. So I added XBee module to send commands wirelessly from RevIO to play different drum sound snippets on the PC speakers. Above was not the only reason to make me put these four force sensitive resistors onto the RevIO case permanently. Fingerprint Scanning doorlock with access history printer. JST SH Jumper 4 Assemblée Wire - 8 "- PRT-10359. Sparkfun.com Shopping Cart 0 items JST SH Jumper 4 Wire Assembly - 8" Share Use this URL to share: Share on Google+ Share on Tumblr Submit to reddi Share on Twitter Share on Facebook Pin It Creative Commons images are CC BY-NC-SA 3.0 added to your shopping cart.

JST SH Jumper 4 Assemblée Wire - 8 "- PRT-10359

Mini Thermal Receipt Printer Starter Pack ID: 600 - $61.95 : Adafruit Industries, Unique & fun DIY electronics and kits. Lecteur d'empreintes digitales - 5V TTL (GT-511C1R) - SEN-13007. Description: Fingerprint scanners are awesome.

Lecteur d'empreintes digitales - 5V TTL (GT-511C1R) - SEN-13007

Why use a key when you have one right at the tip of your finger? Unfortunately, they’re usually unreliable or difficult to implement. Well not anymore! We’ve found this great fingerprint module from ADH-Tech that communicates over TTL Serial so you can easily embed it into your next project. The module itself does all of the heavy lifting behind reading and identifying the fingerprints with an on-board optical sensor and 32-bit CPU.

This is the more economical version of the GT-511 which has a decreased memory capacity (compared to the GT-511C3). The module is small and easy to mount using two mounting tabs on the side of the sensor. Note: The module does not come with a cable, check in the Recommended Products section for an appropriate one. Dimensions: 37 x 17 x 9.5 mm Features: Documents: A compact, Arduino altimeter for RC Planes. Please vote for this Instructable if you think it deserves it!

A compact, Arduino altimeter for RC Planes

Thanks! The Ultimate Altimeter is a super-compact, Arduino controlled altimeter capable of measuring the altitude with an accuracy of 0.3 meters, and saving the highest and lowest values it has measured. It is powered by a 40 mAh Lithium Polymer battery, uses a tiny LCD Bubble Display, and measures altitude with a MPL3115A2 Altitude Sensor. It's very simple and fairly easy to build with just six major components. Additionally, an optional 3D printed case can house the Altimeter. Home Automation/ Control a Relay with your Parallel Port. This is my version of controlling external devices with your computer.

Home Automation/ Control a Relay with your Parallel Port

Namely with the LPT or parallel port. The software is from Lalim, version 3.0.6. The patent was no longer valid scenes 2009 and the direct link to this controller is no longer working. How to hack digital Infra Red switch to make analogic IR distance sensor. Using Servos with Arduino made easy ! Servomotors or simply servos are essential components of a robot which convert electrical energy into mechanical energy.They are widely used in the field of RC hobby and robotics.

Using Servos with Arduino made easy !

But unlike simple geared motors , these servos are made by integrating a geared motor with a position feedback circuit which allows us to control the rotation of the shaft precisely. To drive a servo , we need a controller which provides PWM signals to the servo which in turn determines the angle of rotation. Using an arduino to do this is pretty easy job, all you need is : How to Use a Servo with Tessel. Hacking my RC Car using Arduino and Android Smart Phone.