Mini Serial TTL to RS232 Level Converter Module

This compact serial unit is designed to convert RS232 signals to TTL levels and vice versa, making it ideal for connecting older RS232 devices to modern microcontrollers. It utilizes a locally made version of the MAX3232CSE chip and supports 3-volt and 5-volt logic levels. Its small size facilitates integration into space-limited projects.

Features:

• Converts RS232 to TTL and TTL to RS232
• Compatible with 3-volt to 5-volt logic systems
• Supports up to 120 kilobits per second baud rate
• Dual channel (TX and RX on both sides)
• Small size for easy integration

Usage Instructions:

The power lines on both sides are internally connected, so you only need to power the unit from one side. One side of the unit is dedicated to transmitting and receiving at RS232 level (for connection to an RS232 device), while the other side is dedicated to transmitting and receiving at TTL level (for connection to a microcontroller or logic system).

Specifications:

• Operating voltage: 3 volts ~ 5 volts
• Baud rate: Up to 120 kilobits per second
• Dimensions: 9.4 mm × 15.9 mm
• Interfaces: Dual TX/RX channels

Applications:

• Connecting RS232 devices with Arduino, Raspberry Pi, or other microcontrollers
• Debugging serial communications errors
• Connecting older equipment
• Industrial systems and point of sale