The UART I2C/SPI Click Board™ Board is an all-in-one solution which allows ESD-protected RS-232 connectivity to any embedded application while bridging the UART and I2C/SPI interfaces at the same time. It is equipped with the DE-9 connector, so it can be easily connected. By offering true RS-232 interface, auto hardware flow control using CTS an RTS, auto software control by programmable Xon/Xoff characters, Line-Break generation and detection, programmable special character detection, and more, this Click Board™ is an ideal solution to be used in a wide range of applications that require RS-232 support.