Thanks for merging my old database into the new project.tsv. I added a few more items to it, including the MCU and 25MHz oscillator.

I made some minor changes to the MCU schematic and saved it into a new folder under my name, to make sure I didn't overwrite your work. If you're ok with it, feel free to copy it back into your folder. Changes:

• Changed USB connector to one that's available on Digikey.
• Added LEDs. These aren't connected to anything yet, but they are placed in the schematic and the BOM database. I added options for red, yellow, and green, all in 0603 and 0805 packages. Later, we can delete the ones we don't want. We should use the same LEDs for all other parts of the design.

li_gangyi, are you ok with 0603 LEDs or should we use the 0805s?