Integrated modem maximises range for wireless designers

18th August 2015

Mick Elliott

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Datasheet

The RN2483 433/868MHz LoRa integrated module from Microchip is now available from distributor Mouser Electronics. The module is an integrated modem with a range of over 15km (suburban) and exceptionally low power consumption, giving a battery life in excess of ten years. The LoRa-integrated module enables wireless designers to maximise range and reduce power consumption without compromising either.

The modem operates over the 433MHz and 868MHz bandwidths, which are license-free Industry Scientific and Medical (ISM) frequency bands. The module can connect millions of wireless sensor nodes to LoRa gateways and cloud servers for Internet of Things (IoT) applications, and acts as the end-device in the LorRa network infrastructure.

This robust system with a unique spread-spectrum-based modulation is capable of demodulation 20dB below noise level, enabling high sensitivity for ultra-long range and improved network efficiency with no interference.

The modem includes secure AES-128 encryption, easy-to-use ASCII command interface over UART, adjustable output power up to +14dBM, and 14 GPIO for control, status, and ADC. The device meets the European R&TTE directive and is RoHS-compliant.

It uses a supply voltage of 2.1V – 3.6V and can operate in harsh outdoor environments of -40°C to +85°C. With mobilityand scalable, robust communications, the RN2483 is ideal for a broad range of low-data-rate wireless monitoring and control designs.