All I/O to the pin headers on both sides, on board RGB light, buyers can also connect peripherals according to their own needs.Standard pin headers on both sides make operation easier when using bread boards for development and commissioning BW16 is a dual-frequency Wi-Fi + Bluetooth SoC module developed based on RTL8720DN.It supports dual-frequency (2.4GHz or 5GHz) WLAN and low power Bluetooth 5.0 Integrates ARMV8 (Cortex-M4F) high performance MCU, ARM V8M (Cortex-M0) low power MCU, WLAN (802.11 a / b / g / n), MAC, Bluetooth and RF baseband, and provides a set of configurable GPIO ports for the control of different peripherals. BW16 also integrates internal storage and supports simple application development for full Wi-Fi and BT5.0 protocol capabilities Applicable to industrial manufacturing, smart home, smart countryside and hotel management