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                             <h2 id="introduction">Introduction</h2>
 <h3 id="welcome-to-apache-mynewt">Welcome to Apache Mynewt</h3>
 <p>Apache Mynewt is an operating system that makes it easy to develop
 applications for microcontroller environments where power and cost
 are driving factors. Examples of these devices are connected locks,
 lights, and wearables.</p>
 <p>Microcontroller environments have a number of characteristics that
 makes the operating system requirements for them unique: </p>
 <ul>
 <li>
 <p>Low memory footprint: memory on these systems range from
 8-16KB (on the low end) to 16MB (on the high end).</p>
 </li>
 <li>
 <p>Reduced code size: code often runs out of flash, and total available code size ranges from 64-128KB to 16-32MB.</p>
 </li>
 <li>
 <p>Low processing speed: processor speeds vary from 10-12MHz to 160-200MHz.  </p>
 </li>
 <li>
 <p>Low power operation: devices operate in mostly sleeping mode, in order to conserve
 battery power and maximize power usage.</p>
 </li>
 </ul>
 <p>As more and more devices get connected, these interconnected devices perform complex tasks. To
 perform these tasks, you need low-level operational functionality built into the operating system.
 Typically, connected devices built with these microcontrollers perform a myriad of functions: </p>
 <ul>
 <li>
 <p>Networking Stacks: Bluetooth Low Energy and Thread</p>
 </li>
 <li>
 <p>Peripherals: PWM to drive motors, ADCs to measure sensor data, and RTCs
 to keep time.</p>
 </li>
 <li>
 <p>Scheduled Processing: actions must happen on a calendared or periodic basis.</p>
 </li>
 </ul>
 <p>Apache Mynewt accomplishes all the above easily, by providing a complete
 operating system for constrained devices, including:</p>
 <ul>
 <li>
 <p>A fully open-source Bluetooth Low Energy stack with both Host and
 Controller implementations. </p>
 </li>
 <li>
 <p>A pre-emptive, multi-tasking Real Time operating system kernel</p>
 </li>
 <li>
 <p>A Hardware Abstraction Layer (HAL) that abstracts the MCU's
 peripheral functions, allowing developers to easily write cross-platform
 code.</p>
 </li>
 </ul>
 <p><br></p>
 <h3 id="newt">Newt</h3>
 <p>In order to provide all this functionality, and operate in an
 extremely low resource environment, Mynewt provides a very fine-grained source
 package management and build system tool, called <em>newt</em>.</p>
 <p>You can install <em>newt</em> for <a href="../newt/install/newt_mac/">Mac OS</a>, <a href="../newt/install/newt_linux/">Linux</a>, or <a href="../newt/install/newt_windows/">Windows</a>.</p>
 <p><br></p>
 <h3 id="newt-manager">Newt Manager</h3>
 <p>In order to enable a user to communicate with remote instances of Mynewt OS and query, configure, and operate them, Mynewt provides an application tool called Newt Manager or <em>newtmgr</em>.</p>
 <p>You can install <em>newtmgr</em> for <a href="../newtmgr/install_mac/">Mac OS</a>, <a href="../newtmgr/install_linux/">Linux</a>, or <a href="../newtmgr/install_windows/">Windows</a>.</p>
 <p><br></p>
 <h3 id="build-your-first-mynewt-app-with-newt">Build your first Mynewt App with Newt</h3>
 <p>With the introductions out of the way, now is a good time to <a href="/os/get_started/get_started/">get set up and
 started</a> with your first Mynewt application.</p>
 <p>Happy Hacking!</p>

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	<div class="alert alert-warning">
	<p>
	Version 1.2.0 is not the most recent version of the Apache Mynewt
	documentation. Click <a href="/latest">here</a> to read the latest
	version.
	</p>
	</div>



	<h2 id="introduction">Introduction</h2>
	<h3 id="welcome-to-apache-mynewt">Welcome to Apache Mynewt</h3>
	<p>Apache Mynewt is an operating system that makes it easy to develop
	applications for microcontroller environments where power and cost
	are driving factors. Examples of these devices are connected locks,
	lights, and wearables.</p>
	<p>Microcontroller environments have a number of characteristics that
	makes the operating system requirements for them unique: </p>
	<ul>
	<li>
	<p>Low memory footprint: memory on these systems range from
	8-16KB (on the low end) to 16MB (on the high end).</p>
	</li>
	<li>
	<p>Reduced code size: code often runs out of flash, and total available code size ranges from 64-128KB to 16-32MB.</p>
	</li>
	<li>
	<p>Low processing speed: processor speeds vary from 10-12MHz to 160-200MHz. </p>
	</li>
	<li>
	<p>Low power operation: devices operate in mostly sleeping mode, in order to conserve
	battery power and maximize power usage.</p>
	</li>
	</ul>
	<p>As more and more devices get connected, these interconnected devices perform complex tasks. To
	perform these tasks, you need low-level operational functionality built into the operating system.
	Typically, connected devices built with these microcontrollers perform a myriad of functions: </p>
	<ul>
	<li>
	<p>Networking Stacks: Bluetooth Low Energy and Thread</p>
	</li>
	<li>
	<p>Peripherals: PWM to drive motors, ADCs to measure sensor data, and RTCs
	to keep time.</p>
	</li>
	<li>
	<p>Scheduled Processing: actions must happen on a calendared or periodic basis.</p>
	</li>
	</ul>
	<p>Apache Mynewt accomplishes all the above easily, by providing a complete
	operating system for constrained devices, including:</p>
	<ul>
	<li>
	<p>A fully open-source Bluetooth Low Energy stack with both Host and
	Controller implementations. </p>
	</li>
	<li>
	<p>A pre-emptive, multi-tasking Real Time operating system kernel</p>
	</li>
	<li>
	<p>A Hardware Abstraction Layer (HAL) that abstracts the MCU's
	peripheral functions, allowing developers to easily write cross-platform
	code.</p>
	</li>
	</ul>
	<p><br></p>
	<h3 id="newt">Newt</h3>
	<p>In order to provide all this functionality, and operate in an
	extremely low resource environment, Mynewt provides a very fine-grained source
	package management and build system tool, called <em>newt</em>.</p>
	<p>You can install <em>newt</em> for <a href="../newt/install/newt_mac/">Mac OS</a>, <a href="../newt/install/newt_linux/">Linux</a>, or <a href="../newt/install/newt_windows/">Windows</a>.</p>
	<p><br></p>
	<h3 id="newt-manager">Newt Manager</h3>
	<p>In order to enable a user to communicate with remote instances of Mynewt OS and query, configure, and operate them, Mynewt provides an application tool called Newt Manager or <em>newtmgr</em>.</p>
	<p>You can install <em>newtmgr</em> for <a href="../newtmgr/install_mac/">Mac OS</a>, <a href="../newtmgr/install_linux/">Linux</a>, or <a href="../newtmgr/install_windows/">Windows</a>.</p>
	<p><br></p>
	<h3 id="build-your-first-mynewt-app-with-newt">Build your first Mynewt App with Newt</h3>
	<p>With the introductions out of the way, now is a good time to <a href="/os/get_started/get_started/">get set up and
	started</a> with your first Mynewt application.</p>
	<p>Happy Hacking!</p>

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