Adafruit microSD Card BFF Add-On for QT Py

This PCB is designed to fit onto the back of any QT Py, it can be soldered into place or use pin and socket headers to make it removable. Onboard is a slim, high quality Molex push-pull micro SD card socket. Since the QT Py is already 3V, no level shifter or regulator is required. We're using SPI mode to interface, use the MOSI/MISO/SCK pins plus one other chip select pin. The default is TX but there are some solder jumpers you can use to select RX, A0 or A1.

Features:

• Comes as an assembled and tested PCB
• For any QT Py boards
• Use any micro SD card that supports SPI mode with one CS pin.
• Any Arduino / CircuitPython / MicroPython library can be used to talk to the card