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CH340C serial port module

Overview

1. Use the DIP switch to switch the power supply voltage and VCC output interface voltage of CH340C to adapt to MCUs with different operating levels.

2. It has over-current and ESD protection functions to prevent damage to the computer

3. Apply 5V voltage through the 5.1K voltage dividing resistor to support TYPE-C---TYPE-C data line

4. For first time use, you need to install the driver firmware in the attachment or download it from the official website.

5. Implement the automatic download circuit of the ESP series through UMH3N pre-bias transistor

Design Files

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Update:2025-06-23 00:32:38

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