if detector.board.feather_u2if:
             from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_Feather as _I2C
 
+            self._i2c = _I2C(scl, sda, frequency=frequency)
+            return
+        if detector.board.qtpy_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_QTPY as _I2C
+
+            self._i2c = _I2C(scl, sda, frequency=frequency)
+            return
+        if detector.board.itsybitsy_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_ItsyBitsy as _I2C
+
+            self._i2c = _I2C(scl, sda, frequency=frequency)
+            return
+        if detector.board.qt2040_trinkey_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_QT2040_Trinkey as _I2C
+
             self._i2c = _I2C(scl, sda, frequency=frequency)
             return
         if detector.chip.id == ap_chip.RP2040:
         if detector.board.feather_u2if:
             from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Feather as _SPI
 
+            self._spi = _SPI(clock)  # this is really all that's needed
+            self._pins = (clock, clock, clock)  # will determine MOSI/MISO from clock
+            return
+        if detector.board.itsybitsy_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_ItsyBitsy as _SPI
+
+            self._spi = _SPI(clock)  # this is really all that's needed
+            self._pins = (clock, clock, clock)  # will determine MOSI/MISO from clock
+            return
+        if detector.board.qtpy_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_QTPY as _SPI
+
             self._spi = _SPI(clock)  # this is really all that's needed
             self._pins = (clock, clock, clock)  # will determine MOSI/MISO from clock
             return
             from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Pico as _SPI
         elif detector.board.feather_u2if:
             from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Feather as _SPI
+        elif detector.board.itsybitsy_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_ItsyBitsy as _SPI
+        elif detector.board.qtpy_u2if:
+            from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_QTPY as _SPI
         elif detector.chip.id == ap_chip.RP2040:
             from adafruit_blinka.microcontroller.rp2040.spi import SPI as _SPI
         else: