I bought my module from my local electronics shop, so I don't know this link will be useful to you, but here it is anyway: http://elelsu.com. In response to your other questions/suggestions:
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yes, I am using a breadboard, and this time, I connected all my jumper wires directly to the GY-30 module.
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I connected VCC to the Arduino's 5V
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I disconnected the modules ADD pin
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I ran the I2C scanner again
Despite doing all of the above, this time, when I ran the I2C scanner, I got the following error message:
avrdude: ser_open(): can't set com-state for \.\COM3
An error occurred while uploading the sketch
Just so you know, my baud rate is correct.
Considering all of the above, could anyone tell me what I am doing wrong?