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RP2040 Feather Clock Stretch too long error with I2C Singleton #4372

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@makermelissa

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@makermelissa

See https://forums.adafruit.com/viewtopic.php?f=60&t=176447&p=859863 for more details.

Using i2c = board.I2C() causes a "TimeoutError: Clock stretch too long" error but using
i2c = busio.I2C(board.SCL, board.SDA) fixes it.

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