LoRa gateway module is world’s smallest, says Murata
Supporting eight channels and available in two variants for use in either EU or US ISM bands, the LBAA0ZZ1QM (US) and LBAA0ZZ1TY (EU) LoRa Pico Gateway compact module measures 55.0 x 21.0 x 3.4mm and it is the world’s smallest LoRaWAN gateway module, claims Murata.
The LoRa Pico Gateway is a 14-pin metal-shielded module, designed as a single substrate, low cost module for the fast provision of low data rate LoRa radio links. It comprises a Semtech SX1308 transceiver concentrator capable of managing packets from many remotely dispersed end-points, two Semtech SX1257 integrated RF front end I/Q transceivers and an STMicroElectronics STM32F401 Arm Cortex M4 microcontroller. A Skyworks RF front-end multi-chip module provides antenna matching, receiver pre-amplifier and transmitter final stage function.
The microcontroller hosts packet forwarding, communication with the application host controller and the module’s power management functions. The packet forwarder handles the two-way communication of packets between an end-point and the network server while the host driver provisions a USB CDC virtual port to communication with the host gateway application processor. Alternatively, the module’s UART port can be used for communication with the gateway’s host. The microcontroller firmware controls power management, especially when using a USB port, by limiting downlink power consumption to within the 500mA maximum power budget.
The LoRa network is deployed in utility meter reading, smart agriculture and industrial IoT applications.
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