Wireless module for the Internet of Things Microchip LoRa RN2483. Free Technical Library News

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Microchip LoRa RN2483 IoT Wireless Module

14.03.2015

Gartner predicts that by 2020 there will be 25 billion connected devices worldwide. The rapid growth of the Internet of Things challenges developers to create a simple and reliable infrastructure. Using ready-made modules simplifies this task.

Microchip Technology has unveiled a series of wireless communication modules that meet the specification developed by members of the industry organization LoRa Alliance. The alliance, which announced its creation in February, intends to promote a specification that describes low-speed long-range networks for the Internet of things.

A series of modules was opened by the RN2483 model, capable, according to the manufacturer, of providing communication at a distance of at least 16 km (in the suburbs) for at least 10 years without replacing the power source. The task of such modules is to connect network nodes corresponding to sensors with LoRa gateways. The module operates at frequencies of 433/868 MHz and can significantly speed up and simplify the development of IoT devices. Its dimensions are 17,8 x 26,3 x 3 mm. In addition to its small size, the module features 14 general purpose input/output (GPIO) lines, which provides flexibility in connecting and controlling various sensors and actuators.

The RN2483 firmware implements the LoRaWAN protocol stack so that the module is ready to be integrated into the infrastructure promoted by the members of the LoRa Alliance. The presence of a built-in stack allows you to connect the module to any microcontroller, as long as the latter has a UART interface, since the microcontroller is not required to allocate resources for the implementation of the stack. For example, any of the hundreds of Microchip PIC models is suitable for this role. In addition, the RN2483 supports the Microchip ASCII command and control interface.

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