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AJMRTC 5Pcs CH340 USB to TTL Serial Adapter, USB2.0 UART Download Module, 3.3V/5V Switchable for STC Microcontroller Program Debugging
- - Equipped with reliable CH340 chip, converts USB 2.0 to TTL UART serial signal
- - Switchable 3.3V and 5V output, supports baud rate from 50bps up to 2Mbps
- - TX/RX and power LED indicators for easy serial communication status monitoring
- - 5 modules per pack, perfect for STC, Arduino, ESP32 code download and circuit test
- - Compact layout, supports hot swap, works with Windows, Linux and macOS
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Overview
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AJMRTC CH340 USB to TTL serial module is widely used as a downloader and debugger for STC and other microcontrollers. It converts USB signal into standard TTL UART serial port, with selectable 3.3V or 5V logic level to match different MCU and sensor circuits. Built-in TX/RX activity LEDs help users check data transmission status at a glance. It supports a wide range of baud rates and works with common serial terminal software. Each module passes communication testing before shipment. It is an affordable choice for electronic hobbyists, students and engineers for firmware flashing, sensor debugging and serial communication experiments.
Specifications:
- Brand: AJMRTC
- Chipset: CH340
- USB Standard: USB2.0 Full Speed
- Output Logic: 3.3V / 5V Switchable
- Baud Rate Range: 50bps ~ 2Mbps
- Indicator: PWR, TX, RX LED
- Quantity: 5PCS per set
- Supported OS: Windows, Linux, macOS
- Application: STC Download, Arduino, ESP32, Serial Debug, Electronic Prototyping
- Compatible Devices: STC89C52, Arduino, ESP32, STM32, Serial Sensors
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by ConnectFlow USA Return Policy
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