The STR54L15 is a 6*6mm ultra-tiny embedded system-level ultra-low-power Bluetooth multi-protocol module based on the Nordic nRF54L15. The module integrates an Arm Cortex-M33 processor core and a RISC-V coprocessor with a processor clock frequency of up to 128MHz, and the processors are optimized for specific workloads. The module is equipped with ample integrated internal memory, excellent perfor-mance, and ample memory, making it ideal for IoT products, running machine learning (ML) models, and edge sensor fusion applicaons. The STR54L15 module helps simplify design, reduce costs, and speed up time to market. With professional design, strict quality control, and relevant certifications, the module can help customers quickly bring products to the global market without worri.