LilyPad USB making a whiny noise when plugged into Mac

Other E-textiles
1

Hi! I am a graphic design student and super new to Arduino and E-textiles. I recently purchased a LilyPad USB ATmega32U4 Board (https://www.sparkfun.com/products/12049 … 1704825020) from SparkFun for a project.

Upon plugging it into my Mac for the first time (via a micro USB cable > USB to USB C adapter/dongle), the light under “STAT” started a blinking and a subtle but high-pitched whining sound began. This doesn’t seem right to me, because the sound instantly gave me a headache, and the UNO board I have doesn’t do that. I’m attaching a video here: https://drive.google.com/file/d/1kX5J2u … sp=sharing

Does this mean the board is defective, or maybe it’s the connection to my computer? I’m also getting an error message trying to upload the blink sketch to it via the Arduino IDE. Any help/guidance would be much appreciated, thanks!

2

It could be the port/cable, do you mind swapping to see?

If that doesn’t fix it the Lilypad might have a bad voltage regulator - Was it purchased from us? If so head over to www.sparkfun.com/returns (contact vendor if purchased elsewhere) and we’ll get ya squared away

3

Hi, I did swap the port (tried on a PC so I didn’t need the adapter) and it’s still making the noise. I purchased the micro USB cable and LilyPad from you; I’ll check out the returns page. Thanks!