DEV-13746

Overview

The SparkFun DEV-13746, known as the Beefy 3, is a breakout board for the FTDI FT232RL USB to serial IC. It integrates a 3.3V linear regulator capable of delivering up to 600mA. The module provides a USB interface converted to UART signals. It includes auto-reset functionality for connected microcontrollers via DTR control. The board features header pins for power and serial communication.

Feature Summary

• Integrates an FTDI FT232RL chip for reliable USB to serial conversion
• Includes a high-current 3.3V regulator supporting up to 600mA output
• Provides automatic reset capability for target boards through DTR signal routing

Applications

• Programming and debugging Arduino boards with exposed reset pins
• Serial communication interfaces for embedded systems requiring 3.3V logic
• Development setups needing stable high-current power supply from USB port

Procurement Notes

Verify that the target application requires a 3.3V logic level, as this board does not support 5V TTL levels natively on the TX/RX lines. Confirm that the current draw of the connected device stays within the 600mA limit of the onboard regulator. Check physical pinout compatibility with existing connectors. Ensure the USB host supports standard FTDI driver protocols. Review datasheet for thermal constraints under continuous high-load operation.

Selection Notes

Select this model when a dedicated 3.3V power source with moderate current capacity is needed alongside serial connectivity. It is suitable for projects where auto-resetting the target MCU simplifies the programming workflow. Consider alternative boards if 5V logic levels are required or if higher current output than 600mA is necessary. This board is ideal for developers using FTDI-compatible chips who prefer an integrated solution over separate components.

Part Context

This component belongs to SparkFun's line of development tools and breakouts. It is designed to simplify the integration of USB-to-serial functionality into prototyping environments. The 'Beefy' designation highlights its enhanced power regulation capabilities compared to standard basic breakouts. It serves as a bridge between computer USB ports and serial-based microcontroller hardware.

Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.