--- name: Bug report about: Create a report to help us improve title: '' labels: 'bug' assignees: '' --- **Firmware** ```python Adafruit CircuitPython 6.2.0-beta.2 on 2021-03-01; Raspberry Pi Pico with rp2040 ``` **Code/REPL** ```python import busio, bitbangio i2c = bitbangio.I2C(board.GP1, board.GP0) ``` **Behavior** ```python Traceback (most recent call last): File "", line 1, in TimeoutError: Clock stretch too long ``` **Description** - Error while using i2c... - Only happens when... - might be related to #4291... **Additional Info**