Overview
The FT232RL USB to TTL Adapter is a professional-grade serial communication tool. It converts a standard USB signal into a UART (Serial) signal that microcontrollers can understand. It is the gold standard for programming the Arduino Pro Mini, ESP8266, and ESP32, or for debugging industrial equipment. With its onboard jumper, you can safely switch between 3.3\text{V} and 5\text{V} logic levels, ensuring you don’t fry your sensitive components.
Key Features
Dual Voltage Logic: Easily switch between 3.3\text{V} and 5\text{V} using a physical jumper—essential for modern 3.3\text{V} sensors and MCUs.
Standard 6-Pin Header: Includes DTR, RXD, TXD, VCC, CTS, and GND. The DTR pin allows for “Auto-Reset” when uploading code to Arduinos.
Status LEDs: Built-in TX and RX indicator LEDs show you exactly when data is being transferred.
Over-Current Protection: Features a 500\text{mA} self-restoring fuse to protect your computer’s USB port from short circuits.
Multi-OS Support: Drivers available for Windows, macOS, Linux, and Android.
Technical Specifications
| Feature | Specification |
| Chipset | FT232RL (Original-style Architecture) |
| Interface | Mini-USB |
| Output Voltage | Selectable 3.3\text{V} or 5\text{V} |
| Baud Rates | 300\text{ bps} to 3\text{ Mbps} |
| Pins | DTR, RX, TX, VCC, CTS, GND |
| Dimensions | 36\text{mm} \times 18\text{mm} |
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