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使用低功耗远程物联网设计的解决方案
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在许多物联网应用中，设计者越来越需要能够在较长的范围内工作，但功耗更低的设备。通常情况下，这将需要匹配的低功耗单片机收发器并发展合适的协议栈。幸运的是，新的解决方案大大减少甚至消除了额外的工作，加快了上市时间，降低了成本。
山姆R30从微芯片技术是一个解决方案，消除了这些详细的开发步骤的单一封装中提供MCU和收发器的优化整合的一个例子。用于微芯片的MIWI协议栈结合，山姆R30提供解决方案的低功耗近滴，远程无线物联网设计。
本文将讨论山姆R30的关键属性和开发者如何启动和运行它，快。
Long-range IoT challenges
Long-range applications go well beyond those supported with more common wireless technologies such as Bluetooth or Wi-Fi. Also， these deployments carry a related requirement for multi-year battery life due to physical placement constraints or limited maintenance capabilities.
MCUs based on the 32-bit， ARM® Cortex®-M0+ core are typically relied upon to address the processing end of applications due to their combination of low power and high performance. By pairing these MCUs with sub-GHz transceivers， developers can create a solid foundation for IoT designs capable of operating over much longer ranges than practical with 2.5 GHz Bluetooth or Wi-Fi devices. For developers， however， integrating these devices into a low-power， long-range wireless solution can present multiple challenges.
At the hardware level， engineers must deal with sources of interference， such as switching noise， while maximizing processor performance and transceiver power output. In creating suitable software， engineers can also find themselves forced to develop low-level hardware abstraction layers needed for device support， protocol stacks， and IoT services.
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