Description
Product Description
The CH340G Micro-USB to TTL Serial Module is a robust and highly compatible solution for establishing a reliable serial communication link between your computer and microcontroller. Utilizing the industry-standard CH340G chipset with a dedicated external 12MHz crystal oscillator, this module offers superior timing accuracy and high-speed data stability compared to all-in-one chip alternatives.
Equipped with a standard Micro-USB port, it is compatible with the common cables already present in most labs and workshops. This module is an essential tool for developers, providing a bridge for uploading code, debugging terminal outputs, and flashing firmware on a variety of platforms. With an onboard jumper to switch between 3.3V and 5V logic, it is natively compatible with everything from 5V Arduino boards to modern 3.3V low-power ESP8266, ESP32, and STM32 systems.
Key Features
- High-Stability CH340G Chipset: Features an external 12MHz crystal for precise baud rate timing and reduced data error rates during long-term serial logging.
- Universal Micro-USB Interface: Connect easily using standard Micro-USB cables—ideal for modern development environments where USB-C or Micro-USB is the standard.
- Dual-Voltage Flexibility: Integrated jumper allows for instant switching between 3.3V and 5V power and logic levels to suit different microcontroller requirements.
- Full Signal Breakout: Provides all necessary pins for standard UART communication, including TXD, RXD, VCC, GND, and the DTR pin for “Auto-Reset” microcontroller programming.
- Onboard Diagnostic LEDs: Features Power (PWR), Transmit (TX), and Receive (RX) indicators for immediate visual feedback on data activity.
- USB Port Protection: Includes an onboard self-restoring fuse to protect your computer’s USB port from accidental short circuits or overcurrent.
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