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Small green circuit board with USB-A plug six-pin header voltage jumper and two indicator LEDs

SMUGDESK

SMUGDESK FT232BL USB 2.0 TTL Serial Adapter 6Pin 3.3V/5V

SKU CH-CZGX-SF6NT

USB 2.0 to TTL serial converter with FT232BL chip, 3.3V/5V switchable logic and TX/RX LEDs for Arduino, ESP32, STM32 and Raspberry Pi debugging

  • FT232BL chip provides stable, cost-effective serial conversion
  • Switchable 3.3V/5V jumper protects low-voltage MCUs
  • USB 2.0 interface supports 300 to 3Mbps baud rates
  • TX/RX LEDs give instant visual data monitoring
  • Works with Arduino, ESP32, STM32, Raspberry Pi and more

SMUGDESK FT232BL USB 2.0 TTL Adapter

The SMUGDESK FT232BL is a USB 2.0 to TTL serial converter built around the original FT232BL chip. It provides bidirectional signal translation between a computer and 3.3V or 5V logic microcontrollers. The 6-pin header layout supports quick wiring for embedded development, firmware flashing and hardware debugging tasks.

FT232BL chip alternative to FT232RL modules

This module serves as a cost-effective substitute for the common FT232RL serial adapter. The onboard voltage jumper lets you switch logic levels to match the target device, preventing overvoltage damage to sensitive 3.3V components. It replaces older fixed-voltage cables that cannot accommodate mixed-voltage projects.

300 to 3Mbps baud range with TX/RX LEDs

The adapter handles standard serial speeds from 300 baud up to 3Mbps, covering typical sensor, GPS and microcontroller communication needs. TX and RX indicator LEDs give immediate visual feedback on data flow during debugging. It is not suited for protocols requiring differential signalling or isolation beyond simple TTL UART.

Highlights

  • FT232BL chip provides stable, cost-effective serial conversion
  • Switchable 3.3V/5V jumper protects low-voltage MCUs
  • USB 2.0 interface supports 300 to 3Mbps baud rates
  • TX/RX LEDs give instant visual data monitoring
  • Works with Arduino, ESP32, STM32, Raspberry Pi and more

Specifications

No published specifications for this item yet.

Questions about this item

Does the adapter include a 6-pin header for connecting to an Arduino or ESP32?

Yes, the board has a standard 6-pin terminal that matches the typical pinout used by Arduino, ESP32, STM32 and Raspberry Pi boards for serial wiring.

What driver step is required before the FT232BL adapter appears as a COM port on Windows?

Install the FTDI VCP driver from the chip vendor; after installation the adapter enumerates as a virtual COM port without further configuration.

Are the TX and RX LEDs on the board replaceable if they fail?

The TX and RX indicator LEDs are surface-mounted on the PCB and are not designed to be user-replaceable.

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