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Ok I got to a solution: I had to partially give up one of my ideal conditions in not having to restart the device. I have a C++ application that can communicate to/from the BNO055 via an Arduino Micro. I added a button to this C++ application that sent a command over serial to my microcontroller setup. That command triggered the following logic in the Arduino code: //PseudoCode resetIdentifier(); // Reset the stored BNO ID to 0. resetOffsets(); // Reset the stored BNO calibration offsets to 0s. wdt_enable(WDTO_15MS); // turn on the WatchDog and let it go. while(true) {} // Wait until the device restarts.  So I reset all of the EEPROM data for the BNO and then used the watchdog to restart the device. On setup(), it checks the EEPROM to see if the BNO ID is listed in EEPROM and then grabs its calibration offsets. Since these were cleared, it goes through the calibration process again and stores the new offsets upon completion. This solution worked out great, except I also had to add a re-initialization for the serial connection in my C++ application before trying to send another command.   Thank you very much for your help! ... View more