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【Seamless Connectivity】 Elevate your project capabilities with the JESSINIE CP2102 USB to TTL UART Module. Designed for seamless integration with Arduino, this serial converter efficiently bridges your computer's USB port to your microcontroller, ensuring a smooth data transfer for both hobbyists and professional developers. Enjoy compatibility with a wide range of systems, including Windows, MacOS, and Linux, and experience the ease of plug-and-play functionality.
【Enhanced Safety Features】Prioritize safety with our built-in self-recovery fuse that protects both your devices and computer USB port from accidental short circuits. This thoughtful design ensures peace of mind and longevity for your equipment, making it the Suitable choice for reliable and safe electronic projects.
【Versatile Voltage Output】 Adapt to various project requirements with dual voltage output options of 3.3V and 5V. This flexibility allows you to power a wide array of microcontrollers and components directly from your USB port, eliminating the need for additional power sources and simplifying your setup.
【Comprehensive Compatibility】 With support for baud rates from 300bps to 1Mbps and multiple communication formats, including 5 to 8 data bits and various parity options, this module is equipped to handle diverse communication needs. Whether you're working on a simple project or a complex system, our adapter ensures robust and reliable data exchange.
【User-Friendly Indicators】 Stay informed with integrated status and transceiving indicators that provide real-time on data transmission. The intuitive LED display adjusts brightness according to baud rate, ensuring you have clear visibility of your connection status, which is Suitable for troubleshooting and optimizing your workflow.

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Key Specifications

Input Voltage: 5V via USB (Bus-Powered)
Logic Voltage: 3.3V or 5V (Auto-Detect Compatible)
Baud Rate: 300 bps to 1 Mbps (TTL/RS232 Supported)
Data Buffers: 512-byte TX/RX FIFO (Prevents Data Loss)
Data Format: 5-8 Data Bits, 1/1.5/2 Stop Bits, Odd/Even/Mark/Space/None Parity
OS Support: Windows XP-11, macOS 10.4+, Linux 2.6+, Android
Protections: Self-Recovery Fuse (Short-Circuit Protection)
LED Indicators: Power (Red), TX (Green), RX (Yellow) - Dims at High Baud Rates

Pin Functions

VCC: Power Output (3.3V or 5V). Critical: Match target device voltage!
GND: Common ground for power/logic signals (Star Grounding Recommended)
TXD: UART Transmit → Connect to MCU.RXD (Data Flow: PC → Target Device)
RXD: UART Receive ← Connect to MCU.TXD (Data Flow: Target Device → PC)
DTR: Data Terminal Ready (Auto-Reset Signal for Arduino/STM32 Programming)
5V/3V3 Jumper: Select output voltage (Default: 5V)
Logic Warning: TTL uses +5V="1"/0V="0" (Positive Logic). RS232 uses -12V~3V="0"/+3V~12V="1" (Negative Logic).

FAQ

Q1: Driver fails on Windows 11?
Install latest VCP driver from Silicon Labs. Temporarily disable driver signature enforcement if blocked by OS security.

Q2: No serial communication?
① Verify TXD→MCU.RXD and RXD→MCU.TXD (Cross-Wired!); ② Check voltage jumper matches MCU; ③ Perform loopback test: Short TXD-RXD to confirm self-transmission capability.

Q3: 5V output damages 3.3V device?
Critical: Set VCC jumper to 3.3V when connecting to ESP32/Raspberry Pi. 5V logic destroys 3.3V ICs!

مرحبًا،

بحث

CP2102 USB إلى TTL UART محول تسلسلي 6-Pin لـ Arduino، STC89C52، Pro Mini، محول متوافق 3.3 فولت/5 فولت

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