RS232 to TTL Serial Interface Module

(5 customer reviews)

In stock

SKU: 31154
  1. IC Chip: MAX3232
  2. Operating Voltage: 3.3-5.5V
  3. It can be used to program STC MCU, NXP MCU, Renesas MCU, STM32 MCU, N+-2EC MCU
  4. Pre-assembled compact size board
  5. Suitable for use with most microcontrollers
  6. Operates up to 250 kbit/s


(Including GST)

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Category: USB Interface Module
Tags: RS232, RS232 Female, Conversion Board, TTL, RS232 to TTL, Converter, MAX3232, Communication module

This RS232 to TTL Serial Interface Module is a board with the MAX3232 transceiver integrated circuit (IC). It facilitates serial communication between TTL and RS232 ports by providing the necessary electrical signal conversion.

These boards usually have a DB9 connector soldered at one end, and four header pins with jumper cables at the other end. The jumper cables enable the user to connect the wires to a breadboard or a microcontroller project board, whilst the DB9 connects directly to a COM port of a computer.

The MAX3232CSE+ IC, which comes in a 16 pin narrow SO package. It requires between 3.0 V to 5.5 V to operate and has two receivers and two transmitters. It has a maximum guaranteed data rate of 120 kbps, and the circuitry requires four 0.1µF charge-pump support capacitors. It is also compatible with the famous MAX3232 IC pins. These boards connect to systems with a UART  hence, they work with ATMEL and PIC microcontrollers.

MAX3232 RS232 Serial Port To TTL Converter Module DB9 Connector 5V RS232 to TTL + Female Serial TTL + serial modules / Brush board. This module can be used to the serial port of microcontroller module expand DVD, router, hard drive and other equipment to upgrade.

Note: The color of dupont cables may vary.

Features :

  1. It is widely used in radio modification, phone flash, XBOX360 flash, GPS, vehicle detection, DVD flash, hard disk repair set-top box upgrade.
  2.  It can be used to program STC MCU, NXP MCU, Renesas MCU, STM32 MCU, N+-2EC MCU
  3. Pre-assembled compact size board
  4. Suitable for use with most microcontrollers
  5. Operates up to 250 kbit/s

Package Includes :

1 x RS232 to TTL Serial Interface Module + Dupont Cable(4-pin/20CM)


Length (mm)


Width (mm)


Height (mm)


Weight (gm)


Shipment Weight

0.016 kg

Shipment Dimensions

7 × 5 × 2 cm

15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 5 reviews

5.0 overall

Add a review

  1. Shib (verified owner)

    good quality and working fine


  2. soforsaurabh (verified owner)

    working fine


  3. mbnmll (verified owner)

    Fast shipping. Product works as described.


  4. vinod kumar (verified owner)

    This item is very good for beginners. Thank you.

    vinod kumar

  5. rajsrims (verified owner)

    working perfectly



RS232 Pinout

Questions and answers of the customers

  1. 0 votes
    Q How much Vcc is required to operate the device? answer now
    Asked by navraj9089805991 on February 7, 2020 4:42 pm
    A DC 3.3~5.5 V
  2. 0 votes
    There are no answers for this question yet. Answer now
Only registered users are eligible to enter questions
Country Of Origin: China

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