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    AJMRTC Isolated RS485 RS232 Expansion HAT for Raspberry Pi Series, SPI Controlled Serial Communication Module, Overcurrent Overvoltage Protection, Industrial Isolation Serial Port Board

    • Dual isolated RS485 and RS232 serial ports for reliable industrial communication
    • Controlled via SPI bus, easy to communicate with Raspberry Pi mainboard
    • Built-in isolation circuit to suppress ground loop interference
    • Equipped with overcurrent and overvoltage protection for circuit safety
    • Stackable HAT design, compatible with multiple Raspberry Pi models
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    Overview
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    Any questions? Ask CelesteSM will help you find out quickly.

    AJMRTC isolated RS485 RS232 expansion HAT is designed for Raspberry Pi series boards. It uses SPI for control and integrates isolated RS485 and RS232 interfaces, effectively isolating interference from different power domains and avoiding ground loop noise. The board adds overcurrent and overvoltage protection to defend against abnormal electrical conditions in industrial environments. It supports connection with sensors, converters, PLC and other serial devices. It is widely used for industrial data acquisition, MODBUS communication, equipment monitoring and long-distance serial transmission projects.


    Specifications

    1. Compatible: Raspberry Pi series boards
    2. Communication Interfaces: Isolated RS485, Isolated RS232
    3. Control Bus: SPI
    4. Protection: Overcurrent protection, overvoltage protection
    5. Anti-interference: Electrical isolation design
    6. Installation: Stackable HAT
    7. Application: MODBUS, industrial data collection, long-distance serial communication
    8. Note: Raspberry Pi board is not included


    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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