SparkFun FT231X Breakout Kit

Item number 59276 Brand Sparkfun Model KIT-18291 Share Write a review
SparkFun FT231X Breakout Kit

Description Attachments

The SparkFun FT231X Breakout Kit is a comprehensive package designed to facilitate FTDI with full UART hardware handshake functionality. The kit includes an FT231X Breakout board, whose pin-out is compatible with both official and cloned Arduino boards, making it suitable for general serial applications.

The SparkFun FT231X Breakout Kit stands out due to its auto-reset feature facilitated by the DTR pin. When a new Sketch is downloaded, an Arduino target can auto-reset, eliminating the need to press the reset button manually. This feature is compatible with any Arduino board that has the reset pin connected to a 6-pin connector.

A unique feature of this board is a jumper on the back that enables the user to configure the VCC output to either 3.3V or 5V. The board is shipped with a default setting of 5V, but users can modify this by cutting the default trace and adding a solder jumper for a 3.3V configuration. However, it's worth noting that the FT231X's maximum input is 3.3V, but it can operate at a minimum of 1.8V with external pull-ups and is also tolerant of 5V.

The kit also includes a 0.8m reversible USB-A to Micro-B cable and a 40-pin strip of male break away headers. However, please note that soldering is required to attach the included headers to the breakout board.

The Kit Includes:

  • SparkFun FT231X Breakout
  • Reversible USB-A to Reversible Micro-B Cable - 0.8m
  • Break Away Headers - Straight


  • Schematic
  • Eagle Files
  • Datasheet (FT231XS-U)
  • FTDI Drivers
  • GitHub Hardware Repo


Brand information
Brand Sparkfun
More infoGitHub - sparkfun/FT231X_Breakout at QC-Rev
Size info
Length100 mm
Width131 mm
Height34 mm
Weight122 g
€ 20,70€ 17,10 Excl. VAT (NL)
Out of stock In stock with supplier
Delivered in 5 to 10 days
Shipped from € 3,50 (NL) 30 days cooling-off Excellent service

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