Battery Reports

• 0x20: Read battery charge level

• • Sent when something is plugged into or unplugged from the expansion port
  • Can be requested with Output Report 0x15
  • bu bu ss uu uu bl
  • (a1) 20 00 00 02 00 00 c0
  • bl contains the battery level
  • Values as high as 0xc6 have been found
  • Suggests that a “fully charged” value may be 0xc8 (200 in decimal)