MAX3232 RS232 to TTL Converter Module
This is a small handy module for rapid prototyping projects requiring RS232/PC interface to robotics and microcontroller based projects using 3.3V or 5V TTL logic. This module converts signals between RS232 voltage levels and TTL voltage levels.
Features:
- High-Speed Communication: Supports data transfer speeds up to 115kbps or higher in short bursts for quick, reliable communication.
- SMD MAX3232 Device: Built-in MAX3232 device offers high-speed, efficient signal conversion between RS232 and TTL logic levels.
- Selectable Signal Levels: Allows selection of +3.3V or +5V TTL signal levels via a header for easy adaptation to different systems.
- Status LED (D1): Indicates the operational status of the module for convenient monitoring.
- Microcontroller Compatibility: Works with a wide range of microcontrollers like Microchip PIC, Atmel AVR, STM32, Renesas MCU, NXP MCU, and more.
- Versatile Applications: Used in various fields such as radio modification, XBOX360 flash, vehicle detection, phone flash, GPS, and hard disk repair.
- Easy Integration: Designed for simple use with PCs, laptops, and UART-compatible microcontrollers.
Specifications:
| Attribute | Value |
|---|---|
| Working Voltage | 3.3V to 5.5V |
| PCB Size | 32mm x 28mm |
| Signal Conversion Device | Built-in SMD MAX3232 |
| Data Transfer Rate | Up to 115kbps or higher in short bursts |
| TTL Signal Levels | Selectable +3.3V or +5V |
| Port Interface | TX, RX, VCC, GND |
| Status LED | Yes (D1) |
| Microcontroller Compatibility | Microchip PIC, Atmel AVR, STM32, etc. |
| Applications | Radio mods, XBOX360 flash, GPS, etc. |
TTL Connections Pinout for RS232-TTL Converter:
| Pin | Function | Description |
|---|---|---|
| Pin 1 | VCC (+) | Requires 3.3V (or 5V for 5V TTL logic targets) to power the board. |
| Pin 2 | RX (MAX3232 ROUT1) | TTL output, typically connected to the RX pin of a microcontroller’s UART. |
| Pin 3 | TX (MAX3232 DIN1) | TTL input, usually connected to the TX pin of a microcontroller’s UART. |
| Pin 4 | GND | Ground pin, connected to the 0V rail of the application hardware. |
