CH340N-USB to TTL serial port writer

Overview

The module is a USB to TTL serial port burner based on the CH340N chip. Its physical diagram and interface definition are as follows:

In addition to the normal functions of the burner, the module adds a toggle switch to control the power of the H/L pin. Flat, it provides convenience for burning chips such as ESP8266EX that need to specify special pin level states.

Design Files

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Update:2025-08-04 05:23:06

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