FT232RL USB to TTL 3.3V 5.5V Serial Adapter Module for Arduino

FT232RL USB to TTL 3.3V 5.5V Serial Adapter Module for Arduino 

The FT232RL USB to TTL Serial Adapter Module is a widely used USB-to-serial communication interface based on the FTDI FT232RL chipset.
It provides reliable, high-quality USB-to-UART communication, allowing computers to communicate with microcontrollers such as Arduino, ESP8266, ESP32, STM32, AVR, and PIC.
The module supports both 3.3V and 5V logic levels, making it versatile for various embedded systems and programming tasks.

It is commonly used for uploading firmware, debugging serial communication, and interfacing USB devices with TTL-based hardware.

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Features

• Based on FTDI FT232RL USB-to-UART converter IC
• Supports 3.3V and 5V logic levels (selectable via jumper)
• USB 2.0 full-speed capable
• Provides TXD, RXD, RTS, CTS, DTR signals
• High data transfer rate (up to 3 Mbps)
• Standard micro USB or USB-A connector (module dependent)
• Compatible with Windows, Linux, and macOS drivers
• Built-in 3.3V regulator
• Useful for bootloader flashing and debugging
• LED indicators for power and data transmission
• Plug-and-play operation with stable drivers

Applications 

• Programming Arduino Pro Mini and other bootloader-based boards
• Serial communication debugging for microcontroller projects
• Uploading firmware to ESP8266, ESP32, STM32, and other MCUs
• USB-to-UART communication for robotics and IoT devices
• Interfacing PCs with TTL-level GPS, GSM, and Bluetooth modules
• Serial terminal applications (monitoring sensors or logs)
• Bootloader recovery for corrupted microcontroller firmware
• Developing and debugging embedded systems
• UART communication testing in labs and educational setups