CH340G module USB to TTL converter UART module CH340 3.3V 5V ESP32 Arduino

Description

CH340G Module USB to TTL Converter UART Module – 3.3V / 5V – the ultimate serial communication bridge for ESP32, Arduino, Raspberry Pi, and other microcontroller projects. Designed for reliability and ease of use, this compact module delivers fast, low‑latency data transfer with full USB‑to‑UART compatibility.

Key Highlights

• Dual voltage support: 3.3V and 5V logic levels – perfect for a wide range of boards.
• High‑speed data rates up to 2.5 Mbps for responsive serial communication.
• Built‑in CH340G USB‑to‑UART controller – reliable, low‑power, and driver‑free on most operating systems.
• Compact 3.3 mm header layout for quick soldering or plug‑and‑play use.
• Robust, 1.5 mm thick PCB with a short trace design to reduce noise and improve signal integrity.
• Compatible with ESP32, ESP8266, Arduino Uno, Mega, Nano, and Raspberry Pi.
• Plug‑and‑play: no external power supply needed – USB provides both data and power.

Why Choose the CH340G USB to TTL Converter?

Whether you’re debugging firmware, building IoT devices, or prototyping a new product, this module offers a hassle‑free solution. The CH340G chip is known for its low cost and high compatibility, making it a favorite among hobbyists and professional developers alike. Its small footprint fits easily into breadboards or custom PCBs, while the clear labeling of TX, RX, VCC, and GND pins simplifies wiring.

Product Specifications

• Chip: CH340G
• Voltage Levels: 3.3V / 5V
• Maximum Baud Rate: 2.5 Mbps
• Connector: 4‑pin 3.3 mm header
• Dimensions: 30 mm × 12 mm × 1.5 mm
• Weight: 3 g
• Operating Temperature: –20 °C to 85 °C

Installation & Setup

1. Plug the module into your computer’s USB port.
2. Connect the TX/RX pins to your microcontroller’s UART pins (TX ↔ RX, RX ↔ TX).
3. Power the target board with its usual supply (3.3V or 5V).
4. Open your serial monitor or terminal and start communicating.

Enjoy fast, reliable serial communication with the CH340G USB to TTL Converter – the essential tool for any serial‑based project.