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Seeeduino XIAO Expansion Board - Works With Adafruit QT Py

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Seeeduino XIAO Expansion Board - Works With Adafruit QT Py

The Seeeduino XIAO Expansion Board adds a rich set of peripherals to XIAO-format boards, including the Adafruit QT Py RP2040 and QT Py SAMD21. It features an OLED display, RTC, SD card slot, buzzer, battery charging, and multiple Grove connectors — all in a compact form factor.

Key Features

  • 0.96" OLED Display – 128 × 64 monochrome screen
  • I2C RTC (PCF8563) – Real-time clock with coin cell backup
  • SD Card Slot – For data logging and storage
  • Passive Buzzer – For audio alerts and tones
  • User Button – Connected to D1
  • LiPo Battery Charging – Onboard battery management chip, charges via USB
  • Grove Connectors – I2C, UART, analogue, and digital ports
  • All Pins Broken Out – Full access to the XIAO/QT Py pinout
Note: When used with QT Py boards, the onboard reset button and SWD/SWC pogo pins are not functional — use the reset button on the QT Py itself. All other features work as expected.
Tip: For CircuitPython, the RP2040 QT Py is recommended as it has enough RAM for the OLED display. For Arduino, either QT Py board works well. Note that no CircuitPython library is available for the RTC chip.

Package Contents

  • 1× Seeeduino XIAO Expansion Board

Resources

$43.78
Seeeduino XIAO Expansion Board - Works With Adafruit QT Py—
$43.78

Product Information

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Description

The Seeeduino XIAO Expansion Board adds a rich set of peripherals to XIAO-format boards, including the Adafruit QT Py RP2040 and QT Py SAMD21. It features an OLED display, RTC, SD card slot, buzzer, battery charging, and multiple Grove connectors — all in a compact form factor.

Key Features

  • 0.96" OLED Display – 128 × 64 monochrome screen
  • I2C RTC (PCF8563) – Real-time clock with coin cell backup
  • SD Card Slot – For data logging and storage
  • Passive Buzzer – For audio alerts and tones
  • User Button – Connected to D1
  • LiPo Battery Charging – Onboard battery management chip, charges via USB
  • Grove Connectors – I2C, UART, analogue, and digital ports
  • All Pins Broken Out – Full access to the XIAO/QT Py pinout
Note: When used with QT Py boards, the onboard reset button and SWD/SWC pogo pins are not functional — use the reset button on the QT Py itself. All other features work as expected.
Tip: For CircuitPython, the RP2040 QT Py is recommended as it has enough RAM for the OLED display. For Arduino, either QT Py board works well. Note that no CircuitPython library is available for the RTC chip.

Package Contents

  • 1× Seeeduino XIAO Expansion Board

Resources