Shopping Cart

Detailed Product Description:

In the world of embedded systems and IoT, seamless communication between a computer and a microcontroller is crucial. The USB to UART TTL Serial Converter Module is an indispensable tool that bridges this gap, enabling effortless serial data exchange, programming, and debugging. Unlike older computers that had dedicated serial ports, modern laptops and PCs rely on USB. These compact converters, powered by popular chipsets like the CH340G, CP2102, and FT232R, create a virtual COM port on your computer, allowing you to use standard serial communication protocols.

These modules are essential for programming a wide variety of boards, including the Arduino Pro Mini, ESP8266, ESP32, and other microcontrollers that lack a built-in USB interface. The on-board pins typically include TX (Transmit), RX (Receive), GND (Ground), and selectable power outputs for both 3.3V and 5V. This dual-voltage capability is a key technical feature that ensures compatibility with nearly any logic level, protecting your valuable microcontrollers from damage.

For example, the widely used CH340G is known for its affordability and robust performance, while the CP2102 is praised for its reliability and built-in drivers on most operating systems. The FT232R, a high-end option, is a staple in professional environments due to its extensive features and excellent driver support. Whether you're debugging sensor data, uploading new firmware, or sending AT commands to a GSM or GPS module, a reliable USB to TTL serial converter is a must-have for every electronics toolkit. It simplifies complex connections, making your projects more efficient and enjoyable.

The USB to TTL Serial Converter Module provides a reliable and easy interface between your computer’s USB port and any TTL-compatible serial device like Arduino, ESP modules (ESP8266/ESP32), STM32, AVR, and other microcontrollers. It is commonly used for serial communication, firmware uploading, and debugging embedded systems.

Available with popular chipsets like CH340, CP2102, or FT232RL, the module features TX, RX, VCC, and GND pins, and in many versions, selectable 3.3V/5V logic level for compatibility with a wide range of boards.

Key Features:

• Converts USB to TTL (UART/Serial) signals

• Available with CH340, CP2102, or FT232RL chipsets

• Works with Arduino, ESP8266, NodeMCU, ESP32, STM32, and more

• Supports 3.3V and 5V logic levels (jumper/switch select)

• Plug-and-play with most OS – Windows, Linux, macOS

• Ideal for flashing firmware, serial monitoring, and bootloading

Technical Specifications:

How to Use:

1. Connect USB to PC/laptop

2. Connect module’s TX → RX, RX → TX, GND → GND, and VCC → VCC (3.3V or 5V) of the target board

3. Use Arduino IDE, PuTTY, or any terminal tool to communicate

4. Select correct COM port and baud rate

5. For firmware upload (e.g., to ESP8266), use with boot mode buttons

Applications:

• Flashing ESP8266/ESP32 firmware

• Serial communication with microcontrollers

• Arduino bootloading and debugging

• WiFi/Bluetooth module programming

• USB to UART communication

Package Includes:

• 1 × USB to TTL Serial Adapter Module