* Author(s): cefn
 """
-
+import os
 from adafruit_blinka.agnostic import board_id, detector
 
 # pylint: disable=ungrouped-imports,wrong-import-position,unused-wildcard-import,wildcard-import
     from adafruit_blinka.microcontroller.allwinner.h616.pin import Pin
 elif detector.chip.D1_RISCV:
     from adafruit_blinka.microcontroller.allwinner.D1.pin import Pin
+elif detector.chip.TH1520:
+    from adafruit_blinka.microcontroller.thead.th1520.pin import Pin
 # Special Case Boards
 elif detector.board.ftdi_ft232h:
     from adafruit_blinka.microcontroller.ftdi_mpsse.ft232h.pin import Pin
     from machine import Pin
 elif detector.chip.RP2040:
     from machine import Pin
+elif detector.chip.CV1800B:
+    from adafruit_blinka.microcontroller.cv1800b.pin import Pin
+elif (
+    "BLINKA_FORCECHIP" in os.environ
+    and os.environ["BLINKA_FORCEBOARD"] == "GENERIC_AGNOSTIC_BOARD"
+):
+    from adafruit_blinka.microcontroller.generic_agnostic_board.pin import Pin
 
 from adafruit_blinka import Enum, ContextManaged