FMLR-72-STM

FMLR-72-STM is a LoRa^® and LoRaWAN^® IoT module built on Semtech's SX1272 chipset. It provides wireless connectivity to devices and sensors operating in the sub-GHz spectrum, covering frequencies from 860 MHz to 1020 MHz and supporting all major sub-GHz ISM bands globally. Offering a 157dB link budget, it supports a constant RF output of +20dBm and exhibits high sensitivity down to -137dBm. In addition to LoRa modulation, the module supports (G)FSK, (G)MSK, and OOK modulation for legacy use cases.

The modules are ideal for small battery applications thanks to their low power consumption. It has an integrated STM32L0 MCU featuring a low-power 32-bit ARM Cortex^®-M0+ microcontroller with 192 kB flash and 20 kB RAM. However, for firmware over-the-air updates (FUOTA), we recommend using the FMLR-61-STM with an STM32L4 MCU, as FUOTA typically requires higher RAM capabilities.

The modules adhere to the Miromico Standard Module Footprint (MSMF), ensuring strong investment protection. This feature allows for the creation of different variants with minimal to no need for adjustments to device hardware, production, test tools, and enclosure designs. It makes it easy to switch between different wireless technologies by just swapping the module, providing a secure long-term investment.