A CH340E USB‑to‑TTL Module Type‑C is a compact adapter board that uses the CH340E (a modern variant of the CH340 UART bridge chip by WCH) and features a USB Type‑C connector.
🔧 What It Is
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Chipset: CH340E — a USB-to-serial bridge that creates a virtual COM port when connected to a computer.
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Connector: USB Type‑C plug — more modern and reversible compared to Micro‑USB .
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Signal Interface: TTL-level UART signals (e.g., TX, RX, GND, +5 V or 3.3 V), enabling direct communication with microcontrollers like Arduino, STM8, STM32, and other embedded boards.
⚙️ Key Features & Specs
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Voltage Level: Often jumper-selectable between 5 V and 3.3 V (some fixed to 5 V or 3.3 V on certain modules.
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Baud Rate: Supports typical speeds from 50 bps up to ~2 MHz.
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Plug‑and‑Play: Virtual COM port support for Windows, Linux, macOS, etc. CH340 drivers are usually needed for Windows systems.
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Indicator LEDs: Commonly has TX/RX LEDs to show data activity.
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