The RFS board is designed for wireless communication, environmental monitoring, networking, and IoT (The Internet of Things) applications. It can be used with the DE series FPGA motherboard to expand board functions. The RFS uses a 2x20 GPIO to interface with the FPGA board. It has Wi-Fi and Bluetooth wireless communication capabilities; it also has the ability to communicate through a PC host from UART-to-USB interface. In addition, there are all kinds of sensors, such as an ambient light sensor, temperature and humidity sensors, accelerators, gyroscopes, magnetometer ... and so on.