DEV-14050

Overview

The SparkFun Electronics DEV-14050 is a USB to Serial adapter board based on the CH340G IC from WCH. It supports both 5V and 3.3V systems with auto-installation on most operating systems. The pinout mimics common FTDI-to-USB derivatives, featuring DTR, RXI, TXO, VCC, CTS, and GND pins. A rear jumper allows voltage selection between 3.3V (600mA regulator) and 5V (USB sourced). Onboard LEDs indicate TX and RX activity. It connects via standard A to micro-B USB cable.

Feature Summary

• Utilizes CH340G IC for serial signal conversion
• Configurable output voltage via jumper
• Standard pinout compatible with FTDI derivatives
• Onboard status LEDs for transmit and receive

Applications

• Connecting GPS modules
• Programming Arduino Pro Mini
• Debugging cellular modules
• Interfacing with devices using serial communication

Procurement Notes

Verify the specific component revision and driver compatibility for your target operating system before deployment. Ensure the voltage jumper setting matches the connected device's logic levels to prevent damage. Confirm that the required COM port drivers are correctly installed on the host computer for reliable enumeration.

Selection Notes

Select this board when a cost-effective alternative to FTDI-based adapters is needed. Consider the CH340G driver availability if using older or less common operating systems. Evaluate the current sourcing capability requirements, noting the 600mA limit at 3.3V and USB dependency at 5V.

Part Context

This development tool serves as a bridge between USB hosts and UART devices. It is part of SparkFun's basic breakout series designed for rapid prototyping. The board simplifies serial communication setup by providing a standardized interface and clear visual indicators for data flow monitoring during development.

Replacement Considerations

FTDI Basic boards offer similar functionality but may have different driver ecosystems. CP2102-based adapters provide comparable performance with potentially broader OS support out-of-the-box. Verify pinout compatibility and voltage regulation specifications when substituting.