Low power LoRa sub-GHz module for battery-powered remote sensor applications

Microchip WLR089U0 Low Power LoRa Sub-GHz Module, available now from Mouser, is an ultra-low-power, regulatory certified LoRa module based on the ATSAMR34J18 LoRa IC. This standalone module comprises a 32-bit ARM Cortex-M0+ processor and offers 256KB of Flash and 40KB of SRAM (8KB battery-backed) in a compact 17 x 13.5mm package. With ultra-low power sleep currents as low as 790nA, the Microchip WLR089U0 modules are ideal for battery-powered remote sensor applications.

The highly configurable module peripherals incorporate up to four SERCOMs (configurable as I2C/SPI/UART/LIN interfaces) with one in the low power domain, seven 12-bit ADC channels, and two analog comparators. The module supports LoRa, FSK, MSK, and OOK modulations and gives up to 18.6dBm TX power with an RX sensitivity down to -136dBm.

The module works from 863MHz to 928MHz and is FCC, IC, and RED certified. Supported by WLR089 Xplained Pro Evaluation Kit, Atmel Studio, and a detailed module reference design package, these modules highly simplify the development and expedite the time to market for LoRa end-nodes.