FTDI Basic Breakout 5V/3.3V USB to Serial TTL Board (Red)
Brand: FTDISerial, USB, RS485, CAN & Ethernet
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Prices updated: 13 Oct 2026
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About this product
A USB-to-serial TTL breakout board based on an FTDI chip, with selectable 5 V or 3.3 V logic levels. It is used to program and debug microcontrollers over a serial connection, such as Arduino or ESP boards, and to communicate with serial devices from a PC.
Specifications
- Logic level
- 3.3 V / 5 V selectable
- Interface
- USB to Serial TTL (UART)
- Chip
- FTDI FT232RL
- Board color
- Red
Frequently asked questions
How do I wire it to an Arduino or ESP board?
Connect the board's TX to the FTDI RX, the board's RX to the FTDI TX, and GND to GND. Connect VCC only if the target board is not powered separately.
Which logic level should I select for a 3.3 V board?
Select the 3.3 V setting for 3.3 V boards so the signal levels match the target microcontroller and do not damage its inputs.
