FT232RL USB to Serial TTL Converter Module - Supports 5V, 3.3V, 1.8V Logic Levels

Technical Specifications

• Main Chip: Genuine FTDI FT232RL for maximum driver compatibility.

• Interface: Mini-USB (Standard USB 2.0).

• Logic Level Support: 1.8V, 3.3V, and 5V (Jumper Selectable).

• Data Rates: 300 baud to 3 Megabaud.

• On-board LEDs: Power (PWR), Transmit (TXD), and Receive (RXD).

• Power Output: The VCC header provides the selected voltage to power external circuits.

• EEPROM: 1024-bit internal EEPROM for device ID and product string storage.

• OS Support: Windows (11/10/8/7), Linux, Mac OS, and Android.

Key Applications & Projects

• Embedded Debugging: Real-time logging for ESP32, STM32, and Raspberry Pi Pico.

• Modern SOC Interfacing: Safe communication with 1.8V logic processors used in mobile and IoT tech.

• Firmware Flashing: Recovering bricked routers, hard drives, or 3D printer boards.

• Industrial Automation: Reliable UART-to-PC bridge for PLC testing.

Project Evolution

• Past Projects (Prerequisites): If you’ve used a standard CH340 or CP2102 module for basic Arduino projects, you’re ready for this upgrade.

• Feature Upgrade: This module unlocks the ability to work with Low-Voltage CMOS logic. While basic modules would fry a 1.8V sensor or microprocessor, this FT232RL variant keeps your signals within the safe operating area.

• Effort/Requirements: Intermediate. No complex setup required—simply move the jumper to your target voltage before connecting to your PC. Our Probots Tech-Bridge support team is available if you need help with driver installation on specialised Linux distros.

Virtual Technician & Wiring

⚠️ Safety Warning: Always verify your target device's logic level before connecting. Connecting a 5V-set jumper to a 1.8V sensitive pin will cause hardware failure.

Package Includes: 1 x FT232RL USB to Serial TTL Converter Module

Frequently Asked Questions (FAQ)

• Does this module support Windows 11? Yes, the FT232RL drivers are natively supported and updated via Windows Update.
• Can I use this for 1.8V logic on an ESP32-S3? Yes, it is specifically designed for 1.8V logic domains.
• What happens if I set the jumper to 5V but connect to a 3.3V device? You risk damaging the 3.3V device's RX pin. Always match voltages.
• Is the mini-USB cable included? This listing is for the module only; USB cables are sold separately.
• Does it support hardware flow control (RTS/CTS)? Yes, the side pins break out RTS and CTS for hardware flow control.
• How do I change the voltage? Physically move the yellow jumper cap to the pins marked 1.8V, 3.3V, or 5V.
• Is the chip a genuine FTDI chip? We use high-quality, verified silicon to ensure driver stability and "unbrickable" performance.
• Does it work with Mac M1/M2 chips? Yes, FTDI provides VCP drivers for Apple Silicon.
• What is the maximum baud rate? Up to 3Mbps, depending on cable quality and target device.
• Can I power my project from the VCC pin? Yes, but limit current draw to under 50mA for the 1.8V/3.3V rails.
• Do I need to install drivers for Linux? No, FTDI drivers are built into the Linux kernel (ftdi_sio).
• The TX/RX LEDs aren't blinking. Why? Ensure you have cross-connected TX to RX and that the software port is open.
• Is this compatible with the Arduino IDE? Absolutely, it works as a standard Serial Port.
• Does it support 1.8V on the TX and RX pins? Yes, the jumper changes the logic level of the data pins, not just the VCC out.
• What is the default voltage out of the box? Usually 3.3V, but always verify the jumper position before use.
• Can this program an Arduino Pro Mini? Yes, use the DTR pin (if broken out) or manual reset for timing.
• Is it breadboard-friendly? Yes, the header pins have a standard 2.54mm pitch.
• What is the difference between this and a CH340? This supports 1.8V logic and has higher driver stability in professional environments.
• Can I use this for Android development? Yes, via USB-OTG and FTDI's Android D2XX library.
• Is there a logic level shifter built in? No, the FT232RL chip itself switches its internal I/O bank voltage based on the jumper.