• MAX3232 RS232 to TTL module with DB9 connector for Arduino projects and serial communications.
  • RS232 to TTL converter module for Arduino, featuring DB9 connector and ideal for microcontroller programming.
  • RS232 to TTL module for Arduino with a DB9 connector, ideal for serial communication and microcontroller programming.
  • RS232 to TTL Converter Module for Arduino with DB9 Connector, dimensions 30.8mm x 28.8mm, weight 11.4g.
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MAX3232 RS232 to TTL Converter Module DB9 Serial Adapter for Arduino

MAX3232 RS232 to TTL Converter Module DB9 Serial Adapter for Arduino

HK$10.00
HK$10.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

This RS232 to TTL Serial Port Converter Module is designed for reliable and easy signal conversion between RS232 devices and TTL serial interfaces used by microcontrollers like Arduino, STM32, STC, NXP, NEC, and Renesas. Featuring the MAX3232 chip, the module delivers stable voltage level conversion for seamless communication between 3.3V–5.5V logic systems and traditional RS232 ports (DB9 connector).
Perfect for radio modification, GPS interfacing, hard disk repair, set-top box upgrades, phone flashing, and debugging embedded systems.

Features

  • Converts RS232 signals to TTL (3.3V/5V) logic levels
  • Built-in MAX3232 IC for compatibility with a wide range of microcontrollers
  • Standard DB9 female connector for easy integration
  • Supports both full-duplex data transmission (TX/RX)
  • Operating voltage: 3.3V–5.5V
  • Clearly labeled pins: VCC, GND, TX, RX
  • Compact PCB for versatile installation

Important Notes

  • Some compatibility issues have been reported with certain laptops when used with USB-to-Serial adapters. If communication is unstable, try switching MAX3232 to MAX232 or adjusting operating voltage.
  • This module is intended for basic serial communication and does not include technical support for device programming or flashing.

Common Applications

  • Industrial automation and debugging
  • Embedded system upgrades
  • Microcontroller programming
  • Vehicle diagnostics
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