Overview This is a 2-channel isolated RS232 expansion HAT designed for Raspberry Pi, adopts the SC16IS752+SP3232 solution, with embedded protection circuits such as power supply isolation, ADI magnetical isolation, and TVS diode, etc. It is easy to control the 2-channel RS232 via SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation. Features * 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) Specifications * UART expansion chip: SC16IS752 * RS232 transceiver: SP3232 * Communication interface: SPI * Data rate: 300 ~ 921600 bps * Operating voltage: 3.3V / 5V * Dimensions: 65mm × 56.5mm * Mounting hole size: 3.0mm Package Content 1.2-CH RS232 HAT x1 2.2x20PIN female pinheader x1 3.RPi screws pack (2pcs) x1 Note: this HAT doesn't come with any serial cable, you may also want to pick up the following cables for easy use: 1)Serial Cable Dual Female Crossover: for connecting RS232 devices with male connector, OR for self transceiving test of the HAT's 2 channels RS232 2) Serial Cable Male to Female Straight Through: for connecting RS232 devices with female connector Note: the Raspberry Pi and serial cables are NOT included.

How-to-use document/User Manual ://bit.ly/3OOT9ch. Adopts SC16IS752+SP3232 dual chip combination, converts SPI to RS232, data rate up to 921600bps UART expansion chip: SC16IS752. RS232 transceiver: SP3232. Features 3:Onboard LEDs for indicating the power and transceiver status.Breakout SPI control pins, for connecting with host control boards like Arduino. Features 1:Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. Features 2:Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic. This is a 2-channel isolated RS232 expansion HAT designed for Raspberry Pi, adopts the SC16IS752+SP3232 solution, with embedded protection circuits such as power supply isolation, ADI magnetical isolation, and TVS diode, etc. It is easy to control the 2-channel RS232 via SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation.