The CMWX1ZZABZ-078 LoRa wireless module from Murata is a stand-alone, compact and low power solution that supports the LoRaWAN™ wireless protocol. Measuring 12.5 x 11.6 x 1.76 mm, in a metal shielded LGA package, the Murata LoRa module is one of the world’s smallest solutions for adding LoRa connectivity to applications. The module is designed to be a fully standalone solution incorporating an SX1276 RF transceiver from Semtech and a STM32L Cortex M0+ microcontroller from ST Microelectronics, with 192Kbytes available flash memory. All frequency bands specified for LoRa applications globally are supported with this module, removing the requirement for separate solutions for different regions.
With 192kB flash available, design engineers have enough memory available to embed applications and even host other modulation stacks. Security is a key consideration for Internet of Things applications and the CMWX1ZZABZ-078 is available with an optional STSAFE secure element to enhance network security. Standalone applications can be designed by simply adding a sensor or combination of sensors, power supply (battery or alternative energy solution) and external antenna. External interfaces for the LoRa module include UART / SPI / I2C, an A/D converter interface and 20 GPIO pins are available.
The B-L072Z-LRWAN1 Discovery kit includes an ST-LINK/V2-1 embedded debug tool interface, LEDs, push-buttons, antenna, Arduino™Uno V3 connectors and USB OTG connector in Micro-B format.
The LoRaWAN™stack is certified class A and C compliant. It is available inI-CUBE-LRWAN firmware package. Several examples, as an AT-command stack, are available to help users setting up a complete LoRaWAN™node.