Hi you can refer to this: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/unit/uwb/uwb_unit_at_command_en.pdf When in use, it supports the configuration of 4 base station devices (with different IDs), and only a single tag device is allowed to access and operate at the same time. how many of them are in arrays?