WVS USB UART Debugger CH343 Raspberry Pi 5 Type A 3.3V 5V TTL

The WVS USB/UART Debugger is a compact serial communication module designed for debugging and communication with the Raspberry Pi 5. Based on the CH343 USB-to-UART interface, it provides a convenient connection between a computer or USB host and UART-based devices.

The module supports high-speed serial communication from 50bps up to 6Mbps, making it suitable for console access, system diagnostics, firmware development, embedded programming, and serial communication testing. It features a USB Type-A host connection, onboard UART connectors, selectable 3.3V or 5V TTL logic levels, and protection circuitry designed to improve communication reliability.

With support for Windows, macOS, Linux, and Android, the debugger can be used across multiple operating systems and development environments.

Key Features

• USB-to-UART serial debugger for Raspberry Pi 5
• Based on the CH343 USB-to-UART interface
• USB Type-A host connection
• Supports communication speeds from 50bps to 6Mbps
• Selectable 3.3V or 5V TTL communication levels
• Onboard 3.3V and 5V TTL level selection pins
• Supports 3.3V or 5V output when configured correctly
• Onboard self-recovery fuse
• Transient voltage suppression protection
• ESD and surge protection
• UART I/O protection circuitry
• Multiple wiring and connection options
• Double-sided black immersion-gold PCB finish
• Compatible with multiple operating systems

Technical Specifications

• Brand: WVS
• Product Code: USB/UART DEBUG FOR RASPB PI5
• Product Type: USB-to-UART debugger module
• Primary Application: Raspberry Pi 5 serial communication debugging
• USB Interface: USB
• USB Connector: Type-A
• Device Interface: UART
• USB-to-UART Controller: CH343
• Communication Speed: 50bps-6Mbps
• TTL Logic Levels: Selectable 3.3V or 5V
• Output Voltage: 3.3V or 5V, selected using the onboard jumper
• UART Connector: 6-pin right-angle pin header
• Additional UART Connector: 3-pin connector
• USB Protection: Self-recovery fuse and ESD protection
• UART Protection: I/O protection diode
• PCB Finish: Double-sided black immersion gold
• Supported Operating Systems: macOS, Linux, Android, Windows 7, Windows 8, Windows 8.1, Windows 10, and Windows 11

Raspberry Pi 5 Debugging

The debugger provides a practical way to access the Raspberry Pi 5 UART console for system monitoring, troubleshooting, configuration, and development. It can be used to view boot messages, inspect system output, and communicate with compatible serial interfaces without requiring a conventional network connection.

Before connecting the module, confirm the correct UART pins and logic voltage for the target device.

TTL Voltage Selection

The module includes onboard selection pins for choosing the required TTL communication level:

• 3.3V TTL: Select the 3.3V setting for compatible 3.3V logic systems.
• 5V TTL: Select the 5V setting for compatible 5V logic systems.

The module is powered through USB, and the onboard jumper should be configured to the required voltage setting. Ensure that the selected logic level matches the connected device to prevent possible damage or communication errors.

Protection Features

The debugger incorporates several protection features to improve reliability during normal use:

• Self-recovery fuse: Helps protect against certain overcurrent conditions.
• Transient voltage suppression: Helps reduce the impact of voltage transients and surges.
• ESD protection: Helps protect the interface against electrostatic discharge.
• I/O protection diode: Provides additional protection for the UART interface.

These features improve interface protection but do not replace correct wiring, suitable power supplies, or proper electrical handling procedures.

Applications

The WVS USB/UART Debugger can be used for:

• Raspberry Pi 5 UART console access
• Serial communication debugging
• Embedded-system development
• Firmware and bootloader testing
• Microcontroller communication
• Linux system diagnostics
• Industrial equipment troubleshooting
• UART device configuration
• Development-board programming and testing
• USB-to-TTL serial communication projects

Connection Information

The module provides multiple UART connection options, including a 6-pin right-angle header and a 3-pin connector. Connect the relevant transmit, receive, ground, and voltage connections according to the requirements of the target device.

For UART communication, the transmitter of one device is generally connected to the receiver of the other device, with a common ground connection. Always verify the pinout before applying power.

Important Information

• Select the correct 3.3V or 5V TTL level before connecting the debugger.
• Do not connect a 5V signal to a device that only supports 3.3V logic.
• Confirm the UART pinout and voltage requirements of the target equipment.
• The module is intended for compatible UART and TTL-level communication systems.
• Driver requirements may vary depending on the operating system and host computer.
• The supplied specifications do not state the exact pinout, dimensions, or included USB cable.

What's in the box
1 x WVS USB UART Debugger CH343 Raspberry Pi 5 Type A 3.3V 5V TTL