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    AJMRTC ESP32-S3 Industrial 1CH Relay Module with RS485 Communication, Bluetooth & Wi-Fi IoT Controller, ESP32-S3-Relay-1CH Single Channel Relay Board for Industrial Automation and Remote Switch Contro

    • - Brand AJMRTC ESP32-S3 industrial single channel relay board, integrated RS485, Wi-Fi and Bluetooth, Production PN: ESP32S3-RELAY-1CH-RS485
    • - ESP32-S3 microcontroller delivers stable wireless connectivity and powerful computing capability for edge IoT tasks
    • - 1CH relay output supports switching AC/DC loads, ideal for remote on/off control of industrial equipment
    • - RS485 bus interface enables multi-drop wired communication for MODBUS RTU industrial network integration
    • - Compact industrial PCB design, supports Arduino, MicroPython and ESP-IDF for fast embedded development
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    Any questions? Our AI mode will help you find out quickly.

    AJMRTC ESP32-S3-Relay-1CH is an industrial IoT relay controller built around the ESP32-S3 microcontroller. The production part number is ESP32S3-RELAY-1CH-RS485. This board combines Wi-Fi, Bluetooth wireless connectivity, RS485 wired serial communication and one channel relay switch output on a single PCB.

    It supports remote relay control via wireless network, and can connect to industrial sensors and PLC devices through the RS485 bus with MODBUS RTU compatibility. The relay channel can control external loads such as lights, pumps and solenoid valves. Developers can use ESP-IDF, Arduino and MicroPython frameworks to build automation applications.

    Great for industrial control, smart home automation, remote device monitoring and edge IoT node deployment. Note: External power supply and controlled load equipment are sold separately. Pay attention to relay load rating to avoid burnout.

    Specifications
    1. Brand: AJMRTC
    2. Product Type: ESP32-S3 Industrial 1CH Relay IoT Module
    3. Production Part Number: ESP32S3-RELAY-1CH-RS485
    4. Main Chip: ESP32-S3
    5. Wireless: Wi-Fi + Bluetooth
    6. Serial Interface: RS485, MODBUS RTU supported
    7. Relay Channel: 1CH relay output
    8. Supported SDK: ESP-IDF, Arduino, MicroPython
    9. Application: Industrial automation, remote switch control, IoT monitoring, equipment control
    10. Note: Power supply and external controlled loads not included; follow relay load limits


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