Description

The M5Stack RS232F Module is an isolated RS232 module for serial communication expansion. It uses a TD301D232H serial conversion chip with a DB9 female interface to convert between RS232 and TTL/CMOS logic-level signals, while the F0505S-2WR3 DC/DC power module provides electrical and noise isolation.

This isolated RS232 module includes a DC power input socket and a matching DC-DC circuit to power the connected device. It is designed for industrial automation, instrumentation, medical equipment, and communication equipment where reliable full-duplex RS232 communication is required.

Usage notes: The toggle switch and rotary switch allow straight-through or crossover DB9 signal-line selection and serial interface switching. The DC power input supports 9-24V.

Features

• TD301D232H serial port chip for fast, reliable, full-duplex communication.
• F0505S-2WR3 electrical and noise isolation for RS232 signal transmission.
• DB9 female interface for RS232 to TTL/CMOS level conversion.
• Toggle switch and rotary switch for line sequence and GPIO/interface switching.
• Programming support for Arduino and UIFlow.

Specifications

Applications

• Industrial automation
• Instrumentation
• Medical equipment
• Communication equipment

Product List

• 1 x Module13.2 RS232F
• 1 x HT3.96-4P terminal

Other Content

Before integration, check the official documentation for pin mapping, switch behavior, schematic details, and software examples. The M5Stack RS232F Module is intended for projects that need a compact isolated RS232 module with a DB9 female interface.

Resources

• Official documentation
• Schematic
• Arduino example
• UIFlow module API

FAQ

What is this module used for?

It is used to add isolated RS232 serial communication to M5Stack-based systems, especially in industrial automation, instrumentation, medical equipment, and communication equipment.

What connector does it use?

It uses a DB9 connector and supports full-duplex RS232 communication with RS232 to TTL/CMOS logic-level conversion.

Does it provide signal isolation?

Yes. The F0505S-2WR3 DC/DC power module provides electrical and noise isolation for more reliable RS232 communication.