FT232 USB to Serial Port Adaptor
Compact & Plug-and-Play USB-to-UART Adapter for Microcontroller Programming
The FT232 USB to Serial Port Adapter is a compact, reliable USB-to-TTL serial converter designed for straightforward programming and debugging of embedded systems. Powered by the industry-standard FTDI FT232 chipset, this adapter converts your PC's USB connection into standard UART serial signals (TX/RX) for direct communication with target microcontrollers.
Its streamlined, fixed-voltage design provides a durable, plug-and-play solution without the hassle of managing loose jumper pins—making it an ideal tool for standard serial terminals, Arduino sketch uploads, and router console debugging.
Key Features
Authentic FTDI Chipset: Powered by the FT232 IC for plug-and-play stability across Windows, macOS, Linux, and Android.
Fixed Voltage Operation: Factory-configured logic level for direct, fuss-free hookup to compatible microcontrollers without requiring extra jumper setup.
Compact Inline Design: Lightweight, narrow form factor fits easily into tight enclosures or crowded breadboards.
Automatic Reset Support: Includes a dedicated DTR (Data Terminal Ready) pin for auto-reset functionality during Arduino firmware uploads.
Status LEDs: Onboard LED indicators provide immediate visual feedback for TX, RX, and power status during serial transfers.
Overcurrent Protection: Integrated USB power protection safeguards your computer’s USB port against electrical shorts.
Typical Applications
Microcontroller Programming: Uploading sketches and firmware to Arduino boards, ESP8266/ESP32 breakouts, and STM32 modules.
Serial Debugging: Reading live serial monitor telemetry and data logs from remote sensor nodes.
Network & Router Console Recovery: Accessing TTL-level serial terminals on routers, switches, and single-board computers (SBCs).
Technical Specifications
| Parameter | Specification |
| Main Chipset | FTDI FT232 |
| Interface | USB Type-A to TTL Serial Header |
| Logic Levels | Fixed TTL Level (3.3V / 5V compliant depending on revision) |
| Supported Baud Rates | 300 bps to 3 Mbps |
| Pin Header Layout | DTR, RXD, TXD, VCC, GND |
| Operating Temperature | -40°C to +85°C |
Pinout Connection Guide
| Pin | Name | Description |
| 1 | DTR | Data Terminal Ready (Connect to Target Reset for Auto-Upload) |
| 2 | RXD | Serial Data Input (Connect to Target Board TX) |
| 3 | TXD | Serial Data Output (Connect to Target Board RX) |
| 4 | VCC | Power Output Pin |
| 5 | GND | System Ground (0V Reference) |