Mini-USB to TTL Serial Module with FTDI FT232RL chip

SKU: FA2046
Main Chipset

FTDI FT232RL (Original)
USB Interface

Mini-USB Type-B
Logic Levels

3.3V or 5V (Selectable via Jumper)
Baud Rate Range

300 bps to 3 Mbps
Output Power

3.3V (50mA max) / 5V (500mA max)
Operating Systems

Windows (All versions), macOS, Linux, Android
Communication Mode

Full-Duplex UART
Dimensions

36mm x 18mm
Product Description
The FT232RL Mini-USB to TTL Serial Module is the gold standard for USB-to-Serial communication. Built around the world-renowned FTDI FT232RL chipset, this module provides a rock-solid bridge between your computer’s USB port and any microcontroller or serial device. Unlike cheaper alternatives, the FTDI chipset is famous for its driver stability across Windows, macOS, and Linux, making it the preferred choice for professional engineers and industrial maintenance.
This module is designed for ultimate flexibility, featuring an onboard jumper to switch between 3.3V and 5V logic levels instantly. Whether you are programming an Arduino, “unbricking” a router, or performing high-speed data logging from an industrial sensor, the FT232RL ensures bit-perfect data transmission. Its compact Mini-USB interface and integrated status LEDs (TX/RX) provide immediate feedback, making it an indispensable tool for debugging and firmware development.
Key Features
  • Original FTDI FT232RL Chip: Industry-leading stability with official driver support integrated into most modern operating systems.
  • Dual-Voltage Logic Support: Onboard jumper allows seamless switching between 3.3V and 5V TTL levels to protect sensitive components.
  • Visual Status Indicators: Integrated LEDs for Power, Transmit (TX), and Receive (RX) provide real-time diagnostic feedback.
  • Integrated Over-Current Protection: Features an onboard 500mA self-restoring fuse to protect your computer’s USB port from accidental shorts.
  • Full Lead-Out Pins: Standard 6-pin header (DTR, RXD, TXD, VCC, CTS, GND) ensures compatibility with most Arduino-style programming interfaces.
  • Internal EEPROM: Includes 1024 bits of memory to store USB VID, PID, serial number, and product description strings.
Usage & Applications
  • Microcontroller Programming: The standard tool for uploading code to Arduino Pro Mini, LilyPad, and custom ESP8266/ESP32 boards.
  • Hardware Unbricking: Accessing the serial console of routers, switches, and hard drive controllers for low-level repair and firmware flashing.
  • Industrial Data Logging: Interfacing RS232/TTL sensors with a PC for long-term environmental or factory monitoring.
  • Device Configuration: Programming and fine-tuning 3DR telemetry radios, GPS modules, and OSD boards for drones and robotics.
  • Lab Prototyping: A reliable USB-to-UART bridge for testing new serial protocols during the R&D phase
Q: Why should I choose the FT232RL over a cheaper CH340 or CP2102 module?

The FTDI FT232RL is widely considered the most reliable serial chip in the industry. It has the best driver support (usually automatic on Windows) and handles high-speed, continuous data streams with significantly fewer errors than budget alternatives

Q: Do I need to move the jumper for my project?

Yes. If you are working with 3.3V devices (like ESP8266 or STM32), ensure the jumper is set to 3.3V to avoid damaging your chip. For standard Arduino Uno/Mega-based projects, use the 5V setting

Q: Does this module support "Auto-Reset" for Arduino programming?

Yes. The DTR (Data Terminal Ready) pin is broken out specifically to trigger the reset circuit on microcontrollers, allowing for automatic code uploads without manual button pressing

Q: Where can I find the drivers?

Most modern operating systems will download the drivers automatically when the module is plugged in. If not, the latest drivers are always available on the official FTDI Chip website

Q: Can this module power my external circuit?

It can provide 5V (up to 500mA) or 3.3V (up to 50mA). For high-power components like motors or cellular modules, we recommend using a separate external power supply.

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