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Sensors that are in a smart phone The uses for 65 year olds. Slide 2 Accelerometer! An accelerometer is an electromechanical device that will measure acceleration forces. These forces may be static, like the constant force of gravity pulling at your feet, or they could be dynamic - caused by moving or vibrating the accelerometer. Slide 3 Slide 4 smartphone is probably the most convenient camera you can have. You'll always have it with you, it fits in your pocket, and it doesn't require any manual adjustments before you can take a photo. Even if you own a nicer camera, you'll probably still use your smartphone to capture unexpected photo moments. Therefore, it's a good idea to learn how your phone's camera works so you'll be ready when you want to take a photo. Slide 5 Touchscreen A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus/pen and-or one or more fingers. Some touchscreens use an ordinary or specially coated gloves to work while others use a special stylus/pen only. The user can use the touchscreen to react to what is displayed and to control how it is displayed (for example by zooming the text size). Touchscreens are common in devices such as game consoles, personal computers, tablet computers, and smartphones. They can also be attached to computers or, as terminals, to networks. They also play a prominent role in the design of digital appliances such as personal digital assistants GPS navigation devices, mobile phones, and video games and some books (E-books). Slide 6 Magnetometer Magnetometers are measurement instruments used for two general purposes: to measure the magnetization of a magnetic material like a ferromagnet, or to measure the strength and, in some cases, the direction of the magnetic field at a point in space. Magnetic fields are vector quantities characterized by both strength and direction. The strength of a magnetic field is measured in units of tesla in the SI units, and in gauss in the cgs system of units. 10,000 gauss are equal to one tesla. Measurements of the Earth's magnetic field are often quoted in units of nanotesla, also called a gamma. The Earth's magnetic field can vary from 20,000 to 80,000 nT depending on location, fluctuations in the Earth's magnetic field are on the order of 100 nT, and magnetic field variations due to magnetic anomalies can be in the picotesla range. Slide 7 Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for different purposes. An altimeter is intended to be transported from place to place matching the atmospheric pressure to the corresponding altitude, while a barometer is kept stationary and measures subtle pressure changes caused by weather. The main exception to this is ships at sea, which can use a barometer because their elevation does not change. Due to the presence of weather systems, aircraftaltimeters may need to be adjusted as they fly between regions of varying normalized atmospheric pressure.Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for different purposes. An altimeter is intended to be transported from place to place matching the atmospheric pressure to the corresponding altitude, while a barometer is kept stationary and measures subtle pressure changes caused by weather. The main exception to this is ships at sea, which can use a barometer because their elevation does not change. Due to the presence of weather systems, aircraftaltimeters may need to be adjusted as they fly between regions of varying normalized atmospheric pressure. Slide 8 Blue tooth ! Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices, and building personal area networks. Invented by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization. Bluetooth is managed by the Bluetooth Special Interest Group, which has more than 25,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics. The IEEE standardized Bluetooth as IEEE 802.15.1, but no longer maintains the standard. The Bluetooth SIG oversees development of the specification, manages the qualification program, and protects the trademarks. A manufacturer must make a device meet Bluetooth SIG standards to market it as a Bluetooth device. A network of patents apply to the technology, which are licensed to individual qualifying devices. Slide 9 WIFI Wi-Fi Direct, initially called Wi-Fi P2P, is a Wi-Fi standard enabling devices to easily connect with each other without requiring a wireless access point. It is usable for everything from internet browsing to file transfer, and to communicate with more than one device simultaneously at typical Wi-Fi speeds. One advantage of Wi-Fi Direct is the ability to connect devices even if they are from different manufacturers. Only one of the Wi-Fi devices needs to be compliant with Wi-Fi Direct to establish a peer-to-peer connection that transfers data directly between them with greatly reduced setup. Wi- Fi Direct negotiates the link with a Wi-Fi Protected Setup system that assigns each device a limited wireless access point. The "pairing" of Wi-Fi Direct devices can be set up to require the proximity of a near field communication, a Bluetooth signal, or a button press on one or all the devices. Wi-Fi Direct may not only replace the need for routers, but may also replace the need of Bluetooth for applications that do not rely on low energy.Wi-Fi Direct, initially called Wi-Fi P2P, is a Wi-Fi standard enabling devices to easily connect with each other without requiring a wireless access point. It is usable for everything from internet browsing to file transfer, and to communicate with more than one device simultaneously at typical Wi-Fi speeds. One advantage of Wi-Fi Direct is the ability to connect devices even if they are from different manufacturers. Only one of the Wi-Fi devices needs to be compliant with Wi-Fi Direct to establish a peer-to-peer connection that transfers data directly between them with greatly reduced setup. Wi- Fi Direct negotiates the link with a Wi-Fi Protected Setup system that assigns each device a limited wireless access point. The "pairing" of Wi-Fi Direct devices can be set up to require the proximity of a near field communication, a Bluetooth signal, or a button press on one or all the devices. Wi-Fi Direct may not only replace the need for routers, but may also replace the need of Bluetooth for applications that do not rely on low energy. Slide 10 Thermometer thanks to a highly-sensitive sensor inside of its minuscule housing, Thermodo can tell you the exact air temperature wherever you are, whether thats at the top of a ski slope or sweating away in the sauna afterwards. It works with an accompanying app to show instant readings and if the temperature is climbing or falling. The Thermodo is available in two versions: a basic model in black, red, or silver that sells for $29.99, and a premium version for $44.99 that offers a brushed aluminum finish with engraved logos. Both have the same temperature reading capabilities, though, so youre really just paying more for aesthetics with the premium model. Robocat also ships the Thermodo with a matching keyring to house the unit when its not in use. tested the Thermodo with an iPhone 5S, Moto X, and new HTC One and found that it did live up to its promise: it was able to tell me the air temperature in my environment and track it as the temp rose or fell. The Thermodo would almost instantly react to changes in environment, such as when I walked outside or stuck my phone in the freezer. But its ultra-high sensitivity proved to be quite difficult to deal with when trying to get an accurate reading. Simply touching the unit would cause it to read a different temperature as it sensed my body heat, and the smartphones own heat would impact the reading significantly, as well. The app does have some basic adjustments to compensate for device heat, but if youre looking to get a truly exact reading, its best to use an audio extension cable.thanks to a highly-sensitive sensor inside of its minuscule housing, Thermodo can tell you the exact air temperature wherever you are, whether thats at the top of a ski slope or sweating away in the sauna afterwards. It works with an accompanying app to show instant readings and if the temperature is climbing or falling. The Thermodo is available in two versions: a basic model in black, red, or silver that sells for $29.99, and a premium version for $44.99 that offers a brushed aluminum finish with engraved logos. Both have the same temperature reading capabilities, though, so youre really just paying more for aesthetics with the premium model. Robocat also ships the Thermodo with a matching keyring to house the unit when its not in use. tested the Thermodo with an iPhone 5S, Moto X, and new HTC One and found that it did live up to its promise: it was able to tell me the air temperature in my environment and track it as the temp rose or fell. The Thermodo would almost instantly react to changes in environment, such as when I walked outside or stuck my phone in the freezer. But its ultra-high sensitivity proved to be quite difficult to deal with when trying to get an accurate reading. Simply touching the unit would cause it to read a different temperature as it sensed my body heat, and the smartphones own heat would impact the reading significantly, as well. The app does have some basic adjustments to compensate for device heat, but if youre looking to get a truly exact reading, its best to use an audio extension cable. Slide 11 Slide 12