Bidirectional RS422 to TTL Converter Module

The Bidirectional RS422 to TTL Converter Module with UART Support is a high-performance and precise electronic component designed to convert RS422 signals to TTL and vice versa, enabling reliable two-way communication between devices. Operating at a voltage range of 3.3 to 5V DC, this module features a compact size of 4.5 × 2 cm and a lightweight design of 30 grams, making it easy to integrate into various microcontroller projects. Using this module helps reduce communication errors caused by voltage differences or signal types, improving overall system performance.

On the terminal side, the VCC pin supplies power to the module, TXD transmits TTL signals from the module to the microcontroller's RXD pin, and RXD receives TTL signals from the microcontroller's TXD pin. The GND pin provides grounding and must be connected to the microcontroller’s ground. On the RS422 terminal, the R+/A, R-/B, T+/Y, and T-/Z pins establish communication with other RS422 modules, while GND serves as a common signal return path.

The Bidirectional RS422 to TTL Converter Module offers accurate signal conversion and supports two-way communication, making it ideal for industrial and microcontroller device communication, electronics education projects, and UART-based systems. Implementing this Bidirectional RS422 to TTL Signal Converter Module ensures fast and reliable data transmission, reducing communication errors. It is fully compatible with popular microcontroller boards such as STM32 and ESP32, providing stable and consistent performance.

Key features of this RS422 to TTL Converter Module include a compact design, 3.3–5V operating voltage, lightweight 30-gram build, and support for bidirectional UART communication. Known in the industry as a Bidirectional UART Converter Module, it allows easy connection to other RS422 modules and devices without requiring complex tools. Using the RS422 to TTL Signal Converter in industrial and educational projects minimizes errors and improves data transfer speed, ensuring high-precision communication in all applications.

Applications of the Converter Module with UART Support

1. Connecting microcontrollers to industrial devices using the RS422 protocol.
2. Enabling bidirectional UART communication between STM32 and ESP32 boards.
3. Converting RS422 signals to TTL for use with sensors and digital modules.
4. Implementing high-speed data transfer in industrial automation systems.
5. Creating a communication bridge between industrial equipment and educational or experimental boards.
6. Developing electronics and robotics projects that require stable and precise communication.

Specifications of the RS422 to TTL Converter

1. Operating Voltage: 3.3V and 5V DC
2. Signal Type: Converts RS422 signals to TTL and vice versa
3. UART Communication: Transmits and receives TTL via TXD and RXD pins

4-Pin Terminal:

• VCC: Supplies 3.3V or 5V to the module
• TXD: Sends TTL signals to the microcontroller’s RXD pin
• RXD: Receives TTL signals from the microcontroller’s TXD pin
• GND: Module ground; must be connected to the microcontroller system ground

5-Pin Terminal:

• R+/A: Connects to T+/Y of other RS422 modules
• R-/B: Connects to T-/Z of other RS422 modules
• T+/Y: Connects to R+/A of other RS422 modules
• T-/Z: Connects to R-/B of other RS422 modules
• GND: Common signal return path if needed
• Module Dimensions: 4.5 × 2 cm
• Module Weight: 30 grams