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Small green circuit board with USB and screw terminals

Ruth's sister

Ruth's sister CH340 USB RS485 Serial Converter Adapter Board

SKU CH-YR8Y-CJS0J

Converts USB to RS485 serial using a CH340 chip with automatic direction control and supplies 5 V power

  • CH340 chip handles automatic direction control for reliable RS485 communication
  • Adapter provides 5V power supply to connected serial devices
  • USB interface enables simple connection to host computer
  • RS485 converter board designed for industrial serial applications

CH340 USB to RS485 converter

This adapter board uses a CH340 chip to translate USB signals into RS485 serial data. It provides automatic direction control so no external logic is required. The board also supplies a 5 V power output for connected devices. It suits engineers, hobbyists and technicians adding serial links to modern computers.

Fits a USB port and standard RS485 wiring

Connect the board to any free USB header or port on the host system. Screw terminals or pins accept the differential pair for the RS485 bus. Automatic direction handling frees the host from managing transmit and receive timing. The integrated 5 V supply removes the need for a separate power rail at the remote node.

Highlights

  • CH340 chip handles automatic direction control for reliable RS485 communication
  • Adapter provides 5V power supply to connected serial devices
  • USB interface enables simple connection to host computer
  • RS485 converter board designed for industrial serial applications

Specifications

No published specifications for this item yet.

Questions about this item

What limits the CH340 USB RS485 converter during sustained operation?

The CH340 chip handles automatic direction control for continuous RS485 communication without manual timing intervention.

How much power does the adapter draw when running all day?

The board provides a 5V power supply output through the USB connection for attached RS485 devices.

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