Rank Product Name Score
1 5pcs MAX3232 Root Module Connector Chip RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board fit Equipment Upgrades Like DVD 5pcs MAX3232 Root Module Connector Chip RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board fit Equipment Upgrades Like DVD
Does Not Apply
9.9 GET ON AMAZON
2 ANMBEST 2PCS TTL to RS232 Module, RS232 Serial Port to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers ANMBEST 2PCS TTL to RS232 Module, RS232 Serial Port to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers
ANMBEST
9.8 GET ON AMAZON
3 HiLetgo 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE HiLetgo 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE
HiLetgo
9.5 GET ON AMAZON
4 Anmbest 2PCS MAX3232 3.3V to 5V DB9 Male RS232 Serial Prot to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers Anmbest 2PCS MAX3232 3.3V to 5V DB9 Male RS232 Serial Prot to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers
Anmbest
9.4 GET ON AMAZON
5 NOYITO TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 TTL Serial Port communicates with RS232 Level Device NOYITO TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 TTL Serial Port communicates with RS232 Level Device
NOYITO
9.2 GET ON AMAZON
6 Ultra Compact RS232 to TTL Converter with Female DB9 and Hood Kit (3.3V to 5V) Ultra Compact RS232 to TTL Converter with Female DB9 and Hood Kit (3.3V to 5V)
NulSom Inc.
8.9 GET ON AMAZON
7 RS232 Serial Port to TTL Converter Module LED DB9 Breakout Full Signals RS232 Serial Port to TTL Converter Module LED DB9 Breakout Full Signals
MDFLY
8.6 GET ON AMAZON
8 3pcs TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 for MCU, ARM, FPGA, for Arduino TTL Serial Port communicates with RS232 Level Device 3pcs TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 for MCU, ARM, FPGA, for Arduino TTL Serial Port communicates with RS232 Level Device
UMLIFE
8.5 GET ON AMAZON
9 Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments
Waveshare
8.2 GET ON AMAZON
10 10PCS MAX3232 Root Module Connector Chip Serial Port Converter Module RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board for Equipment Upgrades Like DVD 10PCS MAX3232 Root Module Connector Chip Serial Port Converter Module RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board for Equipment Upgrades Like DVD
UMLIFE
8.2 GET ON AMAZON

5pcs MAX3232 Root Module Connector Chip RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board fit Equipment Upgrades Like DVD

5pcs MAX3232 Root Module Connector Chip RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board fit Equipment Upgrades Like DVD

    Features:

  • Control chip: MAX3232.
  • Operating voltage: 3.3V-5V DC.
  • Operating Current: 6MA.
  • Power supply: external
  • Interface : T X RX VCC GND

ANMBEST 2PCS TTL to RS232 Module, RS232 Serial Port to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers

ANMBEST 2PCS TTL to RS232 Module, RS232 Serial Port to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers

    Features:

  • Supports 3V to 5.5V power supply and provides bidirectional data communication at baud rates up to 115.2 Kbps.
  • This converter can be connected to an Arduino Serial pin (0,1) to convert standard Arduino TTL to RS232. It allows Arduino talk to hundreds of RS232 devices.
  • Using immersion gold board, the combination of solder mask and copper layer on the circuit is stronger, and it is not easy to cause micro short circuit.
  • In order to facilitate the use of the product, each pin is marked, and a schematic diagram of the product is printed on the back of the product.
  • WIDELY APPLICATIONS: RS232 is widely used in radio modifications, phone flash, XBOX360 flash, GPS, vehicle detection, DVD flash, hard disk repair set-top box upgrade. It can be used to program STC MCU, NXP MCU, Renesas MCU, STM32 MCU, N+-2EC MCU.

HiLetgo 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE

HiLetgo 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE

    Features:

  • HiLetgo MAX3232 RS232 to TTL Converter Module
  • Operating Voltage: 3.3V~5V
  • Four Interface: VCC, GND, RXD, TXD
  • Communication Chip: MAX3232 chip

Anmbest 2PCS MAX3232 3.3V to 5V DB9 Male RS232 Serial Prot to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers

Anmbest 2PCS MAX3232 3.3V to 5V DB9 Male RS232 Serial Prot to TTL Converter Module Root Connector for Arduino Raspberry Pi and Microcontrollers

    Features:

  • Main chip: MAX3232; Operating voltage: 3.3V-5V; Interface: TX, RX, GND, VCC; Bauds: 300 to 115200.
  • Supports 3V to 5.5V power supply and provides bidirectional data communication at baud rates up to 115.2 Kbps.
  • This converter can be connected to an Arduino Serial pin (0,1) to convert standard Arduino TTL to RS232.  It allows Arduino talk to hundreds of RS232 devices. 
  • This converter uses MAX3232-based level shifter for converting TTL (Transistor-Transistor Logic) -level serial to standard RS232 serial.
  • Application: RS232 is widely used in radio modifications,phone flash, XBOX360 flash, GPS, vehicle detection, DVD flash, hard disk repair set-top box upgrade. It can be used to program STC MCU, NXP MCU, Renesas MCU, STM32 MCU, N+-2EC MCU. 

NOYITO TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 TTL Serial Port communicates with RS232 Level Device

NOYITO TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 TTL Serial Port communicates with RS232 Level Device

    Features:

  • Uses: MCU’s TTL serial port communicates with RS232 level devices. Serial expansion of the device. RS232 port communication with Computer PC.
  • Supports 3-5.5V power supply.
  • Use high-quality chips. In order to facilitate the use of the product, each pin is marked, and a schematic diagram of the product is printed on the back of the product.

Ultra Compact RS232 to TTL Converter with Female DB9 and Hood Kit (3.3V to 5V)

Ultra Compact RS232 to TTL Converter with Female DB9 and Hood Kit (3.3V to 5V)

    Features:

  • Female DB9 Connector (NS-RS232-01: B00OPTOKI0)
  • Includes a plastic DB9 Hood Kit
  • Ultra compact board size: 15 x 14 mm, FCC Certified
  • Supports 3V to 5.5V power supply (***The Rx/Tx logic level is equal to the Vcc-supply.*** Vcc: 3.3V -> Rx/Tx High Logic Level: 3.3V. Vcc: 5V -> Rx/Tx: 5V )
  • 4 pin through hole: VCC, GND, Logic out (TX), Logic In (RX) and 2 pin through hole: CTS, RTS

RS232 Serial Port to TTL Converter Module LED DB9 Breakout Full Signals

RS232 Serial Port to TTL Converter Module LED DB9 Breakout Full Signals

    Features:

  • RS232 Serial Port To TTL Converter Module LED DB9 Breakout Full Signals

3pcs TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 for MCU, ARM, FPGA, for Arduino TTL Serial Port communicates with RS232 Level Device

3pcs TTL to RS232 Module TTL RS232 Mutual Conversion Module Serial Level Conversion to SP232 for MCU, ARM, FPGA, for Arduino TTL Serial Port communicates with RS232 Level Device

    Features:

  • Supports 3-5.5V power supply.
  • Uses: Microcontroller, ARM, FPGA, for Arduino and other MCU’s TTL serial port communicates with RS232 level devices. Serial expansion of the device. RS232 port communication with Computer PC.
  • RS232 port communication with computer PC.
  • Can be used for GPS, electronic compass, car detection, hard disk maintenance etc
  • In order to facilitate the use of the product, each pin is marked, and a schematic diagram of the product is printed on the back of the product.

Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments

Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments

    Features:

  • This is an industrial USB to RS232/485/TTL isolated converter with original FT232RL inside. It features embedded protection circuits such as power isolation ADI magnetical isolation and TVS diode etc. What’s more the USB TO RS232/485/TTL comes with an aluminium alloy enclosure make it solid and durable to work.
  • The USB TO RS232/485/TTL is very easy to use fully automatic transceiving without delay. Due to its fast communication stability reliability and safety it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
  • Fully automatic transceiver circuit with no delay ensures the USB port communicates with different interfaces fastly and stably without interfering each other
  • Onboard unibody power supply isolation provides stable isolated voltage needs no extra power supply for the isolated terminal
  • High quality USB-B and RS232 connectors smoothly plug/pull

10PCS MAX3232 Root Module Connector Chip Serial Port Converter Module RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board for Equipment Upgrades Like DVD

10PCS MAX3232 Root Module Connector Chip Serial Port Converter Module RS232 to TTL Female Serial Port to TTL DB9 Converter Module Board for Equipment Upgrades Like DVD

    Features:

  • Control chip: MAX3232. Compatible with Arduino, Raspberry Pi and any microcontrollers, such as: PIC, Atmel£¬STM or other systems with TTL serial communication.
  • Operating voltage: 3.3V-5V DC.
  • Can be used to program the type of microcontroller: STC/STM32 / NXP / Renesas MCU / NEC.
  • Interface: TX RX VCC GND.
  • Used in radio modification, mobile phone brushing, XBOX360 brushing machine, GPS, car detection, DVD brushing, hard disk repair, set-top box upgrade.

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