I am using an Arduino Micro board connected to an Adafruit BNO055 IMU sensor. I cannot detect the board and when I run an I2C scanner it detects nothing. Here are the connections and photos Arduino Pin 2 to SDA Arduino Pin 3 to SCL Arduino 5v to Vin Arduino GND to GND
I have my sensor wired up the same as yours was however if I run the I2C Wire Scanner it will not detect the sensor. I think it is also important to note I have had this sensor working for a while and had this problem in the past. I can not recall how I was able to solve it though.
Okay, I was wrong and it does need those resistors. I was using it for a good couple of weeks before this happened and it worked fine. Would running this without those resistors cause the board to be permanently damaged?
I also checked for shorts and wire connections which all were as expected.
Having the same Project right now but using an esp8266 with the Arduino IDE. In my case it works perfectly fine without resistor. I had do define this Adafruit_BNO055 IMU = Adafruit_BNO055(-1, 0x28) to make it work.