This module is a powerful multi-protocol module solution for ULP wireless applications. an ARM Cortex M0 CPU and 256 flash + 16kB RAM memory. Integrated an ultra-low power accelerometer, LIS3DH, which is a high performance three axes linear accelerometer, with digital I2C/SPI serial interface standard output.User defined outside 2.4Ghz antenna leaves the biggest flexibility to the customer for matching different application, like high power long distance and short distance application.