MAX3232 Mini RS232 to TTL Module

MAX3232 Mini RS232 to TTL Module 

The MAX3232 Mini RS232 to TTL Module is a compact level-shifting converter used to translate RS232 serial signals (±12V levels) to TTL logic levels (3.3V or 5V).
It is based on the MAX3232 IC, which supports high-speed communication and works with both 3.3V and 5V systems—making it ideal for microcontrollers, embedded boards, and PC serial interfaces.

The module allows reliable serial communication between devices like computers, PLCs, GPS receivers, and microcontrollers by converting the voltage levels safely and efficiently.

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Pin-outs :

Circuit Connection :

Specifications :-

• High speed, replaceable MAX232 based. The device fitted supports up to 120kbps
• Works with PCs or Laptops
• Supports microcontroller UARTs – 5V TTL signal levels.
• Single DC supply: wide input range for 4201 or 5V for 4202 and 4203
• Low current status LED(s)
• Very low power consumption

Applications

• Interface between PC RS232 ports and microcontrollers
• Arduino, ESP8266, ESP32, STM32 serial communication
• Industrial RS232 devices to TTL logic conversion
• Connecting GPS, GSM, and sensor modules using RS232
• Serial communication with PLCs, CNC machines
• Debugging and monitoring hardware via RS232
• Data logging and terminal interfaces
• Robotics and embedded systems requiring RS232 link
• Upgrading old RS232 devices to modern MCU systems