Hi MichaelA, Sorry, I haven't UNO & Shield board, your question a little complex so I need further information. But firstly, please check the hardware connection(UNO and shield) are right. I got two resource, one is shield board schematic, another is shiled board's library code. If you doubt the shield board is damaged, you could using I2C to get BNO055's chipid(address: 0x00, defaut val: 0xA0). Read chipid didn't using interrupt pin. Best regards
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