Waveshare 2-Channel Isolated RS232 Expansion HAT for Raspberry Pi SC16IS752+SP3232 Solution with Multi Onboard Protection Circuits

Note: this HAT doesn't come with any serial cable, you may also want to pick up the following cables for easy use: Serial Cable Dual Female Crossover: for connecting RS232 devices with male connector, OR for self transceiving test of the HAT's 2 channels RS232. Serial Cable Male to Female Straight Through: for connecting RS232 devices with female connector. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. Adopts SC16IS752+SP3232 dual chip combination, converts SPI to RS232, data rate up to 921600bps. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic. Onboard LEDs for indicating the power and transceiver status. Breakout SPI control pins, for connecting with host control boards like Arduino. Comes with development resources and manual (examples in C and Python).