CH340N USB-to-TTL Serial Port Module USB TO UART TTL 3.3V/5V Level Converter RX/TX Download Debugging Tools

Quantity : 1 High-concerned chemical : none Package : SMD is_d : Yes Supply Voltage : 3.3V/5V Type : Module Brand Name : diymore Origin : Mainland China Condition : New

Features 1. Supports 3.3V and 5V operating voltages, allowing direct compatibility with various mainstream MCUs without the need for a level-shifting chip 2. Features separate blue RX and red TX signal LEDs for easy monitoring of operating status 3. Uses the CH340N chip, which supports mainstream operating systems and offers excellent compatibility, greatly simplifying the learning curve 4. Ideal for space-constrained USB-to-serial applications, such as development boards and industrial control modules 5. Simple design and plug-and-play functionality make it highly suitable for various embedded development and debugging scenarios Parameter Operating Voltage: 3.3–5V Indicator Lights: The RX light flashes red when data is present; the TX light flashes blue when data is present Application Scenarios AD/Microcontroller Development: Most commonly used on various AD-compatible boards and STM32 development boards as an onboard USB download and debugging interface. Embedded System Debugging: Developers can use it to connect to a computer and print debugging information or send control commands via tools such as serial port assistants, making it an essential tool for embedded development. IoT Devices: In IoT devices such as smart home systems and sensor nodes, it is used to configure device parameters or transmit data to a host computer. Firmware Programming: Many MCUs support firmware programming via the serial port, making the CH340N a common solution for connecting a computer to the target chip for program download. Package include Module × 1 Pin Header × 1

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