The LoRaWAN network with the XMEGA AU based sensor node, Microchip LoRa Gateway board, and The Things Network server has successfully demonstrated secure, bi-directional LoRa communication.
All the experiments with the wireless sensor node are carried out in Bengaluru, India. In highly dense urban areas that are surrounded by high rise buildings, the sensor node reliably communicated with LoRa gateway within a radius of approximately 1 km, where the gateway is positioned inside the building.
The sensor node realized using ATxmega256A3BU MCU and RN2483 LoRa transceiver module has demonstrated effective utilization of ADC, Event System controller, DMA controller, Timer, RTC, UART, and USB peripherals of ATxmega256A3BU MCU for IoT applications.
The sensor node has attained optimized power consumption due to the lower power consumption of ATxmega256A3BU MCU and RN2483 LoRa transceiver module, both in active and power down modes.