SparkFun FTDI Basic Breakout - 3.3V
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Sebastian Rogers
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SparkFun FTDI Basic Breakout - 3.3V
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The SparkFun FTDI Basic Breakout provides USB-to-serial conversion using the FTDI FT232RL IC, operating at 3.3V logic levels. Its 6-pin header matches the st...
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The SparkFun FTDI Basic Breakout provides USB-to-serial conversion using the FTDI FT232RL IC, operating at 3.3V logic levels. Its 6-pin header matches the standard FTDI pinout, making it compatible with Arduino Pro, LilyPad, and other 3.3V boards that use the FTDI connector.
The board brings out the DTR pin rather than RTS, enabling auto-reset on compatible Arduino boards when uploading sketches — no need to press the reset button manually. TX and RX LEDs provide visual confirmation of serial traffic.
Key Features
- FTDI FT232RL – Reliable USB-to-serial UART conversion
- 3.3V Logic Level – Matches 3.3V Arduino boards and other targets
- DTR Pin – Enables auto-reset for sketch uploads on compatible boards
- TX/RX LEDs – Visual indication of serial communication
- SMD 6-Pin Header – Compact form factor with standard FTDI pinout
- Mini-B USB Connector – Standard USB connection to host computer
Pin Alignment
The pins labelled BLK and GRN correspond to the black (GND) and green (DTR) wires on a standard FTDI cable. Use these markings to align the board with your target's 6-pin connector.
Ideal For
- Programming Arduino Pro, LilyPad, and other 3.3V FTDI-header boards
- General-purpose USB-to-serial communication
- Debugging and serial monitoring
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- RTS
- RTS stands for Request To Send, a serial flow-control signal used to manage when a device is ready to receive data. It matters when moving fast serial streams because flow control can help prevent lost data.
- RX
- RX means receive, usually showing data being received by the board. An RX indicator LED can help with troubleshooting USB or serial communication.
- SMD
- SMD means surface-mount device, a component style designed to be soldered directly onto the surface of a circuit board rather than through holes. SMD parts are compact and mounted flat on the board, which suits smaller and mass-produced designs.
- TX
- TX means transmit, usually showing data being sent from the board. A TX indicator LED can help you see when the board is communicating or uploading code.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
Find this product in
FTDI Basic Breakout 3.3V Schematic
Schematic · 18.0 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 1009.6 KB · Click any page to view full size
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This repo houses all of the SFE Fritzing parts for use in diagrams in tutorials. If you create a new part in Fritzing that correlates to an SFE part, please add it here so others may use it and to avoid duplication.
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3.3V FTDI Basic Breakout Board, created by and available from SparkFun Electronics
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3D Models of our products
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