Chengdu Silent Smart Technology Co., Ltd as STMicroelectronics China eco-partner with rich experience in module development, was the first one to release the STM32WL33-based wireless data transmission module - WS8561ELS in September 2023.

The WS8561ELS is developed using STM32WL33, ST's latest SoC chip that supports GFSK debugging wireless communication protocols. The STM32WL33 integrates a general-purpose microcontroller and an RF unit on a single chip, including an RF transceiver, a modem, and a 32-bit MCU with a 64MHz main frequency using Arm Cortex M0+ architecture, with a Flash capacity of 256kB and an SRAM capacity of 256kB. The WS8561ELS has a Flash capacity of 256kB and an SRAM capacity of 32kB, which provides a longer transmission distance, faster speed, lower power consumption and smaller size.

WS8561ELS supports fixed-point transmission, transparent transmission, wireless wake-up, wireless relay and other functions. Its high-performance MCU makes a substantial increase in functionality and efficiency. The internal data processing adopts 3-level cache, which greatly increases the stability and real-time data.