Android operating system Wikipedia. Android. Android 8. Oreo home screen. Developer. Written in. Java UI, C core, C1OS family. Unix like. Working state. Current. Source model. Click start button to start sharing On your Wireless Connection Status, click Details to get the network connection information, note the IPV4 Address. Samsung Galaxy S3 Manual User Guide for Samsung Galaxy S3 Owners. Include Picture and Latest Firmware Update for Galaxy S3 GTi9300. Samsung Galaxy S3 using Android. Android Debug Bridge ADB is one of the toolkits included in the Android SDK package that facilitates communication between your Android device and the computer. Guide to Update Galaxy Nexus YAKJUXW to Android 4. YAKJU and Get future Updates from Google. Mayur April 18, 2012. There are lots of different ways to take screenshots on your Android device. Some are manufacturerspecific Android Skins Explained How Do Hardware Makers Change. Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Replies to Android USB Host Arduino How to communicate without rooting your Android Tablet or Phone. Free, Safe, Simple, Manage your files efficiently and easily with ES File Explorer File Manager ES File Explorer File Manager is a fullfeatured file. KZCOjGU/Vu6Env1hdfI/AAAAAAAACwM/lRzaZ-ODvm8-JHrES47ZWfVK29eMa63-w/s1600/UnlockRoot-PRO-2.png' alt='One Click Root Android 4.0.4' title='One Click Root Android 4.0.4' />Open source and in most devices with proprietary components. Initial release. September 2. Latest release. 8. Oreo August 2. Latest preview. Oreo October 2. Marketing target. Smartphones, tablet computers, Android TV, Android Auto and Android Wear. Available in. 10. Package manager. APK primarily through Google Play installation of APKs also possible locally or from alternative sources such as F DroidPlatforms. ARM, x. 86, x. 86 6. MIPS and MIPS6. 4Kernel type. Monolithic modified Linux kernelUserland. Bionic libc,4mksh shell,5Toybox as core utilities beginning with Android 6. Net. BSD89Default user interface. Graphical multi touchLicense. Apache License 2. GNU GPL v. 2 for the Linux kernel modifications1. Official websiteandroid. Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Androids user interface is mainly based on direct manipulation, using touch gestures that loosely correspond to real world actions, such as swiping, tapping and pinching, to manipulate on screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, Google has further developed Android TV for televisions, Android Auto for cars, and Android Wear for wrist watches, each with a specialized user interface. Variants of Android are also used on game consoles, digital cameras, PCs and other electronics. Initially developed by Android Inc., which Google bought in 2. Android was unveiled in 2. Open Handset Alliance  a consortium of hardware, software, and telecommunication companies devoted to advancing open standards for mobile devices. Beginning with the first commercial Android device in September 2. Oreo, released in August 2. Android applications apps can be downloaded from the Google Play store, which features over 2. February 2. 01. 7. Android has been the best selling OS on tablets since 2. As of May 2. 01. 7update, Android has two billion monthly active users, and it has the largest installed base of any operating system. Androids source code is released by Google under an open source license, although most Android devices ultimately ship with a combination of free and open source and proprietary software, including proprietary software required for accessing Google services. Android is popular with technology companies that require a ready made, low cost and customizable operating system for high tech devices. Its open nature has encouraged a large community of developers and enthusiasts to use the open source code as a foundation for community driven projects, which deliver updates to older devices, add new features for advanced users or bring Android to devices originally shipped with other operating systems. The extensive variation of hardware in Android devices causes significant delays for software upgrades, with new versions of the operating system and security patches typically taking months before reaching consumers, or sometimes not at all. The success of Android has made it a target for patent and copyright litigation between technology companies. History. Former Android logo wordmark 2. The Sooner prototype phone,1. Android. Android Inc. Palo Alto, California in October 2. Andy Rubin, Rich Miner, Nick Sears, and Chris White. Rubin described the Android project as tremendous potential in developing smarter mobile devices that are more aware of its owners location and preferences. The early intentions of the company were to develop an advanced operating system for digital cameras, and this was the basis of its pitch to investors in April 2. The company then decided that the market for cameras was not large enough for its goals, and by five months later it had diverted its efforts and was pitching Android as a handset operating system that would rival Symbian and Microsoft Windows Mobile. Rubin had difficulty attracting investors early on, and Android was facing eviction from its office space. Steve Perlman, a close friend of Rubin, brought him 1. Perlman refused a stake in the company, and has stated I did it because I believed in the thing, and I wanted to help Andy. In July 2. 00. 5,1. Google acquired Android Inc. Its key employees, including Rubin, Miner and White, joined Google as part of the acquisition. Not much was known about the secretive Android at the time, with the company having provided few details other than that it was making software for mobile phones. At Google, the team led by Rubin developed a mobile device platform powered by the Linux kernel. Google marketed the platform to handset makers and carriers on the promise of providing a flexible, upgradeable system. Google had lined up a series of hardware components and software partners and signaled to carriers that it was open to various degrees of cooperation. Speculation about Googles intention to enter the mobile communications market continued to build through December 2. An early prototype had a close resemblance to a Black. Berry phone, with no touchscreen and a physical QWERTYkeyboard, but the arrival of 2. Applei. Phone meant that Android had to go back to the drawing board. Google later changed its Android specification documents to state that Touchscreens will be supported, although the Product was designed with the presence of discrete physical buttons as an assumption, therefore a touchscreen cannot completely replace physical buttons. In September 2. 00. Information. Week covered an Evalueserve study reporting that Google had filed several patent applications in the area of mobile telephony. On November 5, 2. Open Handset Alliance, a consortium of technology companies including Google, device manufacturers such as HTC, Motorola and Samsung, wireless carriers such as Sprint and T Mobile, and chipset makers such as Qualcomm and Texas Instruments, unveiled itself, with a goal to develop the first truly open and comprehensive platform for mobile devices. The first commercially available smartphone running Android was the HTC Dream, also known as T Mobile G1, announced on September 2. Since 2. 00. 8, Android has seen numerous updates which have incrementally improved the operating system, adding new features and fixing bugs in previous releases. Each major release is named in alphabetical order after a dessert or sugary treat, with the first few Android versions being called Cupcake, Donut, Eclair, and Froyo, respectively. During its announcement of Android Kit. Kat in 2. 01. 3, Google explained that Since these devices make our lives so sweet, each Android version is named after a dessert, although a Google spokesperson told CNN in an interview that Its kind of like an internal team thing, and we prefer to be a little bit how should I say a bit inscrutable in the matter, Ill say. In 2. 01. 0, Google launched its Nexus series of devices, a lineup in which Google partnered with different device manufacturers to produce new devices and introduce new Android versions. The series was described as having played a pivotal role in Androids history by introducing new software iterations and hardware standards across the board, and became known for its bloat free software with timely. How to communicate without rooting your Android Tablet or Phone Using Android in Industrial Automation. Intro. In the past two posts we have explained the basics of USB communication with the Arduino Uno also applicable for Arduino Mega. Galaxy Nexus to Arduino UNO via USBIn this post well put everything together and show you how to communicate between your Android application and the Arduino using nothing but the Android USB host API. Remember, this approach has nothing to do with Android ADK Unlike Android ADK, your Android device will act as the USB host, while your Arduino board will act as the USB device. For the following application to work, you will require an Android device that supports USB host mode as well as the USB host API. Most Android 3. 1 tablets will suffice some may require an USB OTG adapter. Also, the Galaxy Nexus has host mode enabled and matches the requirements you will need an USB OTG adapter however. This example consists of two parts The Android application that makes use of the USB APIA simple Android app that lets you regulate the brightness of an LED on the Arduino using a slider. It also features a button to enumerate the USB device. Firmware for the Arduino that does some serial IO with the Android app. Very basic firmware for the Arduino. An interrupt is generated when a new byte is received. The received data controls the brightness of the Arduinos on board LED. The Arduino firmware. In the main loop the firmware asserts and clears the LED pin of the Arduino PB5. Here is a shortened excerpt. PORTB 1 lt lt LED. PORTB 1 lt lt LED. During a period of 2. LED is asserted for a duration of pause1. Simply put, this is a very simple software PWM. During that time, data and consequently pause may be changed within an interrupt routine form the serial USART port. This happens when the Android side sends data to the Arduino. The interrupt routine is extremely basic. ISRUSARTRXvect attention to the name and argument here, wont work otherwise. UDR0 UDR0 needs to be read. The RX data has to be read in the ISR interrupt service routine from UDR0 have a look at the Atmega. P reference manual for further details. Since we are doing no multi buffering shenanigans the handling is extremely simple no need to call cli or anything. The rest of the code is initialization of the IO pins and UART functionality. Download the complete example here ledpwm. Controlled LED on the UNO by the firmware. The Android app. The Android application uses the basic knowledge of the preceding blog post Arduino USB transfers. During USB initialization, the Arduino USB serial converter is set up and after that, communication is done using the bulk IN endpoint of the very same serial converter. With both the aforementioned firmware installed your Arduino board and the Android application installed on your phone or tablet, you will be able to control the brightness of the Arduino Unos built in LED with a slider on your Android device. Again, please note that this will only work with devices that actually support both USB host mode hardware, kernel requirement as well as the Android USB host API Android OS requirement. The source code is available here Usb. Controller. tar. gz You may need to change the PID value in Usb. Controller. Activity. Arduino Uno Rev. 3 or higher. You can check the VIDPID value with lsusb after connecting the Arduino to your computer. Many parts of the code are probably familiar to Android SW engineers. The most interesting section is in the class Usb. Controller where the Arduino device is set up and communication is initiated. So lets have a closer look at the inner class Usb. Runnable within Usb. Controller. private class Usb. Runnable implements Runnable. Usb. Device m. Device. Usb. RunnableUsb. Device dev. m. Device dev. USB functionality is implemented. Usb. Device. Connection conn m. Usb. Manager. open. Devicem. Device. Interfacem. Device. Interface1, true. Arduino USB serial converter setup. Transfer0x. 21, 3. Transfer0x. 21, 3. Usb. Endpoint ep. IN null. Usb. Endpoint ep. OUT null. Usb. Interface usb. If m. Device. get. Interface1. for int i 0 i lt usb. If. get. Endpoint. Count i. if usb. If. Endpointi. Type Usb. Constants. USBENDPOINTXFERBULK. If. get. Endpointi. Direction Usb. Constants. USBDIRIN. IN usb. Stage Truss Design Software. If. get. Endpointi. OUT usb. If. get. Endpointi. Send. Lock ok there should be a OUT queue, no guarantee that the byte is sent actually. Send. Lock. wait. Interrupted. Exception e. Stop. m. Connection. Handler. on. Usb. Stopped. e. print. Stack. Trace. conn. Transferep. OUT, new byte m. Data, 1, 0. if m. Stop. m. Connection. Handler. on. Usb. Stopped. After the USB interface has been claimed the Arduino USB serial converter is initialized by issuing the following control transfers. Transfer0x. 21, 3. Transfer0x. 21, 3. The first call sets the control line state, the second call sets the line encoding 9. N1. For communication, an additional thread is used to send data without blocking the Activitys main UI thread. By notifying s. Send. Lock of the Usb. Controller the data will be transferred. After submission, the thread will go into wait again. This way, even if submission takes more time than expected, the Activitys main thread will not be blocked and hence the app will not become unresponsive. Screenshot of the Android App. Also note that in the Android Manifest none of the XML style device filters are needed, since enumeration happens by the user in the app when pressing the enumerate button. Device filters and therefore automatic activity launch when connecting the Arduino are not used in this example in order to make the code simpler to comprehend. However, this could be easily implemented with a few lines of additional code. For developing this example we have used a Galaxy Nexus Phone with an USB OTG adapter cable. It has also been successfully tested with an Android Tablet, the Acer Iconia Tab A5. This post concludes the 3 Part Arduino USB communication series. Feel free to post any questions or feedbackideas in the comments section or contact us via E Mail http www. All code you find in this post can be used under GPL for your own projects. The following section About Android and USB Host again concludes why USB Host is becoming more and more important for mobile devices and points out main differences between Android ADK Android Accessory Development Kit and the Android USB Host API. EDIT control transfers for FTDI equiped Arduinos. Since we got requested a lot if the FTDI Usb Serial converter will work too, here ist the control transfer code that needs to be exchanged. No warranties though. Transfer0x. 40, 0, 0, 0, null, 0, 0 reset. Transfer0x. 40, 0, 1, 0, null, 0, 0 clear Rx. Transfer0x. 40, 0, 2, 0, null, 0, 0 clear Tx. Transfer0x. 40, 0x. Source Links. Android App Usb. Controller. tar. gzrduino main ledpwm. You may need to change the PID value in Usb. Controller. Activity. Arduino Uno Rev. 3 or higher. You can check the VIDPID value with lsusb after connecting the Arduino to your computer. About Android and USB Host. Lately it has become more and more popular to use tablets or mobile phones to communicate with the outside world over USB.