The Serial Converter Module is designed to bridge the voltage gap between your PC's RS232 interface and the TTL levels required for seamless microcontroller communication. By connecting the DB9 connector to your PC, you can directly communicate with microcontrollers like Arduino, AVR, and ARM via the Serial port. This module is particularly useful for projects requiring multiple serial connections to your PC, even if your microcontroller already includes a UART2 to USB connection.

Features

• Voltage Bridging: Allows direct communication between RS232 and TTL voltage levels.
• Wide Compatibility: Works with various microcontroller units (MCUs), including Arduino, AVR, and ARM.
• Flexible Serial Connections: Ideal for projects needing multiple serial connections to a PC.
• Easy Integration: Connects directly to your PC using the DB9 connector.

Specifications

• Communications Chip: MAX3232
• Operating Voltage: 3.3V - 5.5V
• Interface: UART

Pinout of the Module

• VCC: 5V
• TX: Transmitting Data
• RX: Receiving Data
• GND: Ground

How to Connect

To enable direct communication between two devices using UART:

1. Connect the Transmitting UART: The UART at the transmitting end converts parallel data from the CPU into a serial format.
2. Transmitting Data: The converted serial data is sent to the receiving UART.
3. Receive and Convert Data: The receiving UART converts the serial data back into parallel format for the receiving device.
4. Synchronization: Both UARTs need to operate at nearly the same baud rate (within a 10% deviation) to ensure successful data transfer.
5. Configuration: Set the transmitting and receiving UARTs to handle the same data packages.

Package Includes

• 1 x Serial Converter Module