ESP32 8CH MOSFET Module RS485 Modbus RTU WiFi BT Type-C

ESP32 8-Channel MOSFET Module with RS485, Modbus RTU, WiFi & Bluetooth

Take your DIY automation and embedded systems projects to the next level with this powerful ESP32 8-Channel MOSFET Module. Featuring built-in WiFi and Bluetooth connectivity, RS485 interface with Modbus RTU support, and 8-channel opto-isolated inputs, this versatile module is the ideal control hub for industrial automation, smart home projects, and IoT development.

Key Features

• ESP32 Microcontroller: Dual-core processor with integrated WiFi and Bluetooth for seamless wireless communication and remote control.
• 8-Channel MOSFET Output: Drive loads, relays, motors, LEDs, or other devices with 8 independent high-power MOSFET switching channels.
• 8-Channel Opto-Isolated Inputs: Protects your controller from voltage spikes and electrical noise — ideal for connecting sensors, switches, and PLCs safely.
• RS485 Interface with Modbus RTU Support: Industry-standard serial communication for long-distance, noise-resistant data transmission and easy integration with SCADA systems and industrial devices.
• Built-in CH340 USB-to-Serial Chip: Enables one-click firmware flashing via USB — no extra programmer needed.
• Dual Power Supply: Supports both 7–24VDC wide-range input and USB Type-C power, offering flexible deployment options.
• TTL UART Interface: Provides additional serial communication flexibility for debugging and peripheral connectivity.
• Compact & Robust Design: Optional protective shell available for installation in enclosures or DIN rail setups.

Specifications

• Microcontroller: ESP32 (WiFi + Bluetooth)
• Output Channels: 8x MOSFET
• Input Channels: 8x Opto-Isolated
• Communication: RS485 (Modbus RTU), TTL UART, WiFi, Bluetooth
• USB Interface: Type-C (with CH340 serial chip)
• Power Supply: 7–24VDC or USB Type-C
• Country of Origin: Made in Mainland China

What's in the Box

• 1× ESP32 8CH MOSFET Module or 1× Protective Shell (please select your variant)

Ideal For

• Industrial automation and Modbus RTU networks
• Smart home and IoT control systems
• Embedded electronics prototyping and DIY electrical projects
• Remote monitoring and switching via WiFi or Bluetooth
• PLC expansion and sensor interfacing

Note: Due to lighting and screen differences, the item's color may appear slightly different from the photos. Please allow 1–10mm differences due to manual measurement.

For more information on electrical safety standards for DIY and industrial electronics, visit the OSHA Electrical Safety Resource.

Frequently Asked Questions

Q: Does the ESP32 8CH MOSFET Module support Modbus RTU communication over RS485?

A: Yes! This module features a built-in RS485 interface with full Modbus RTU protocol support, making it fully compatible with industrial PLCs, SCADA systems, and other Modbus-enabled devices for reliable long-distance serial communication.

Q: Can I program this module directly via USB without a separate programmer?

A: Absolutely. The built-in CH340 USB-to-serial chip allows you to connect the module directly to your PC via the USB Type-C port and flash firmware with one click using the Arduino IDE or other ESP32-compatible development environments — no external programmer required.

Q: What power supply options does this ESP32 MOSFET module support?

A: This module offers dual power supply options: a wide-range 7–24VDC input for industrial or panel-mount setups, and a USB Type-C port for bench-top development and programming. Both options can be used depending on your deployment environment.

Q: What is the purpose of the 8-channel opto-isolated inputs?

A: The 8-channel optocoupler-isolated inputs electrically isolate the ESP32 microcontroller from external signal sources, protecting it from voltage surges, ground loops, and electrical noise. This is especially important when interfacing with industrial sensors, PLCs, or high-voltage switching environments.