Isolated Rs232 Expansion Hat for Raspberry Pi 4b, Sc16is752+sp3232

Standard for Raspberry Pi 40PIN GPIO extension header, supports for Raspberry Pi series boardsAdopts SC16IS752+SP3232 dual chip combination, converts SPI to RS232, data rate up to 921600bpsOnboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, anti-electrostaticOnboard LEDs for indicating the power and transceiver statusBreakout SPI control pins, for connecting with host control boards like for ArduinoOperating voltage: 3.3V / 5VMounting hole size: 3.0mm1. ADUM1412 digital isolator2. B0505LS power supply isolation module3. RT9193-33 power chip4. for Raspberry Pi GPIO connector: for connecting Raspberry Pi5. MCU control header: for connecting host control boards like for Arduino6. RS232 connector: 2 channels RS232 interface (RS232 9PIN male)7. Transient suppress diode array8. ESD protection two-way diode9. Serial port status indicator: RXD1/TXD1: channel 1 transceiving indicator; RXD2/TXD2: channel 2 transceiving indicator10. Power indicator11. Interrupt pin switch: The interrupt pin IRQ is connected to P5 (BCM P24) by default; Changeable via 0R resistorcolour: blueMaterial: plasticSize: about: 65x56.5mmPackage Contents:1 x 2-channel isolated RS232 expansion HATOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.