WS8404FLS is a LoRa wireless transceiver SoC module designed and produced by Chengdu Wusheng Xuntong Technology Co., Ltd. that supports multiple frequency bands. It supports 868/815 frequency bands and has a maximum transmission power of 22dBm.

WS8404FLS is developed using the STM32WLE5xx launched by ST. The STM32WLE5xx integrates STMicroelectronics' STM32L4 ultra-low power microcontroller technology and Semtech's sub-GHz RF IP core optimized to meet the requirements of radio equipment regulations around the world. It has the characteristics of low power consumption and small size.

WS8404FLS is a pure hardware SoC module and cannot be used independently. Users need to carry out secondary development. (Our company supports customized standard LoRaWan and Ali linkWan nodes).