Mini RS232 to TTL Level Converter Serial Module

This compact serial module converts RS232 signals to TTL levels and vice versa, making it ideal for interfacing legacy RS232 devices with modern microcontrollers. It uses a domestic version of the MAX3232CSE chip and supports both 3V and 5V logic levels. Its small footprint makes it easy to integrate into space-constrained projects.

Features:

• Converts RS232 to TTL and TTL to RS232
• Compatible with 3V to 5V logic systems
• Supports up to 120kbps baud rate
• Dual channel (TX and RX on both sides)
• Compact size for easy integration

Usage Instructions:

The power supply lines on both sides are connected internally, so you only need to power the module from one side. One side of the module is for RS232 level TX and RX (connect to RS232 device), while the other side is for TTL level TX and RX (connect to microcontroller or logic level system).

Specifications:

• Operating Voltage: 3V ~ 5V
• Baud Rate: Up to 120kbps
• Dimensions: 9.4mm x 15.9mm
• Interfaces: Dual TX/RX channels

Applications:

• Interfacing RS232 devices with Arduino, Raspberry Pi, or other MCUs
• Serial communication debugging
• Legacy equipment communication
• Industrial and POS systems