RS232 to TTL Converter Module

The RS232 to TTL Converter Module is used to convert standard RS232 serial signals into TTL-level signals, allowing seamless communication between computers, industrial equipment, and microcontrollers such as Arduino, ESP8266, ESP32, Raspberry Pi, and other TTL-based devices.

RS232 signals operate at higher voltage levels (±12V), which are not compatible with microcontrollers. This module safely converts those voltage levels to TTL (0–5V or 0–3.3V), ensuring reliable and secure serial data communication.

Key Features

• Converts RS232 ↔ TTL serial communication

• Compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and more

• Built-in voltage level shifting for safe operation

• Supports standard TXD, RXD, GND signals

• Compact size and easy to integrate

• Stable and reliable data transmission

• Typically based on MAX232 / SP3232 IC (model dependent)

Technical Specifications

• Input Voltage: 3.3V / 5V (depending on module)

• RS232 Voltage Level: ±5V to ±12V

• TTL Level: 0–3.3V or 0–5V

• Baud Rate: Up to 115200 bps (typical)

• Interface: TX, RX, GND

• Operating Temperature: -40°C to +85°C

Applications

• Serial communication with industrial machines

• PC to microcontroller communication

• CNC machines and automation systems

• Embedded system development

• Data logging and debugging

• Robotics and IoT projects

Package Includes

• 1 × RS232 to TTL Converter Module