Google Tech Talk August 2, 2010 ABSTRACT Presented by David Sachs. Gyroscopes, accelerometers, and compasses are increasingly prevalent in mainstream consumer electronics. Applications of these sensors include user interface, augmented reality, gaming, image stabilization, and navigation. This talk will demonstrate how all three sensor types work separately and in conjunction on a modified Android handset running a modified sensor API, then explain how algorithms are used to enable a multitude of applications. Application developers who wish to make sense of rotational motion must master Euler angles, rotation matrices, and quaternions. Under the hood, sensor fusion algorithms must be used in order to create responsive, accurate, and low noise descriptions of motion. Reducing sensing errors involves compensating for temperature changes, magnetic disturbances, and sharp accelerations. Some of these algorithms must run at a very high rate and with very precise timing, which makes them difficult to implement within low-power real-time operating systems. Within Android specifically, this involves modifying the sensor manager, introducing new APIs, and partitioning motion processing tasks. David Sachs began developing motion processing systems as a graduate student at the MIT Media Lab. His research there led him to InvenSense, where he continues this work with MEMS inertial sensors used in products such as the Nintendo Wii Motion Plus. David's designs incorporate gyroscopes ...
Теги: google tech talk android sensor games

Please note: I did not come up with this invention. I saw it in a video by "ribbitz". All credit for the idea belongs to him. You can view his original video here: www.youtube.com The reason I've posted this video is show people my compact version of it, how to build it from scratch, how you can wire it, and just how easy it is to build one. I love his idea and want to help people take advantage of it. What his device does is detect water and sends an inverted redstone signal indicating if there is water. I demonstrate how to use the device to implement a secret locking mechanism for your doors. There are many other applications you could use this for.
Теги: minecraft mine craft etho ribbitz water sensor floater boat redstone lock double door mechanism secret hidden switch pressure plate

I decided to take another stab at the Light Sensor. There were a few things I felt I could improve upon and I applied a lot of the suggestions and concerns people left me. This new version should be more stable, detect day faster, is more compact, and easy to hide in the ground or under water. BUD Switch: www.youtube.com Light Sensor: www.youtube.com Minecraftaddict: www.youtube.com sethbling: www.youtube.com FallOfWar: www.youtube.com TrinkerTank: www.youtube.com World Download (83): www.mediafire.com Donate: www.paypal.com /webscr?cmd=_donations&business=dlaskiwski@live.ca&lc=US&item_name=EthosLab¤cy_code=CAD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHostedGuest
Теги: minecraft mine craft game etho let's lets play tutorial instruction creeper zombie skeleton world boat cart station survival dispenser beta epic mob trap grinder eats redstone red stone circuit water lava elevator fire track house base mining digging diamond invention mechanism fun notch cave light sensor

This tutorial demonstrates and teaches you how to build a Light Sensor. This can be used to detect day and night cycles as a redstone signal. The Light Sensor is built from 3 main components. A piston is used to control killing grass during the night, and growing grass during the day. A redstone BUD Switch is used to detect grass growing and dying. A T-FlipFlop memory unit keeps track of the day and night cycle. If it rains during the day, the Light Sensor will still detect it as being day, despite the darker conditions. FallOfWar: www.youtube.com World Download (83): www.mediafire.com Donate: www.paypal.com
Теги: minecraft mine craft game etho let's lets play tutorial instruction creeper zombie skeleton world boat cart station survival dispenser beta epic mob trap grinder eats redstone red stone circuit water lava elevator fire track house base mining digging diamond invention mechanism fun notch cave light sensor day night timer

We took a $20 digital scale from Target and hooked it up to an amplifier and a microcontroller. This video outlines taking apart the scale, wiring it to the amplifier, and the code, as well as an overview of the concepts behind strain gauges and Wheatstone bridges. There's a demo of two live scale apps written in Python near the end of the video. For the source code or more information about our microcontroller kits, go to www.nerdkits.com
Теги: digital scale bathroom weight force sensor strain gauge load cell amplifier analog differential wheatstone bridge avr

Mighty Car Mods install a wideband oxygen sensor kit into the March SuperTurbo, which us one of the best ways to monitor your cars tune by
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Battlefield 3 Gameplay Tips | T-UGS SUBSCRIBE: www.youtube.com TWITTER: twitter.com SUBSCRIBE BATTLEFIELD 3 SHOW! www.youtube.com Had a question from a viewer that I have seen a lot. How does the Battlefield 3 T-UGS work in multiplayer gameplay? In this video I give you a quick tutorial full of tips on using the Recon / Sniper T-UGS Gadget on your kit. Lean how the TUGS works and how to use it to be effective. BattleStrats: www.BattleStrats.com Follow BattleStrats on Twitter twitter.com Follow BattleStrats on Facebook: www.facebook.com TAGS: "Battlefield 3" Battlefield 3 Gameplay "Battlefield 3 Gameplay" Motion Sensor "Battlefield 3 Multiplayer" BF3 Multiplayer Online Commentary walkthrough tutorial TUGS "Battlefield 3 T-UGS" "Battlefield 3 Tugs" How to Use Gadget Recon Sniper Kit Class Weapons Specializations tips tactics tricks help guide TUGS T-UGS Xbox PS3 PlayStation 3 PC Xbox360 Military War Video Game TODAY MONTH WEEK
Теги: Battlefield 3 Battlefield Gameplay Battlefield 3 Gameplay Motion Sensor Battlefield 3 Multiplayer BF3 Multiplayer Online Commentary walkthrough tutorial TUGS Battlefield 3 T-UGS Battlefield 3 Tugs How to Use Gadget Recon Sniper Kit Class Weapons Specializations tips tactics tricks help guide T-UGS Xbox PS3 playstation PC Xbox360 today Week Month

Car running rich? Down on power? In this episode the boys from MCM squeeze a bit more power and fuel economy out of the S15.
Теги: mighty car mods how to change o2 02 sensor oxygen nissan silvia s15 subaru liberty drift fuel economy save money mpg km per 100 speed

This is how to clean a mass airflow sensor , this car is a 2003 ford crow vic police interceptor , but any car or truck with a mass air flow sensor will be cleaned in the same way , and they all are located in the air intake like this one , open your hood and you are sure to spot it , and the process is very simple , so clean away , even if you don't think you have a problem , clean it , you will notice power , and fuel mpg improvements 100% guaranteed , so get cleaning , also check out my video on cleaning your throttle body , this can be done with the same cleaner , and will help idle smoothness , and off idle stumbles , misses , and could turn off that big orange light on your dash too !!!
Теги: mass airflow sensor meter air flow clean cleaner cleaning how to do it yourself and save DIY ford chevy chevrolet honda toyota mazda nissan buick olds oldsmobile pontiac caddilac dodge chrysler crown vic victoria police interceptor used cars auto ram robot new digital computer cadillac dodge ram charger cherokee sierra electronics caravan gadget simple easy technology motors grand cherokee yukon mechanics

MythBusters- Motion Sensor! Confirmed? Plausible? Busted?
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