Expansion Port Reports

• 0x20: Expansion port status

• • Sent whenever status changes
  • Can be requested with Output Report 0x15
  • bu bu ss uu uu bl
  • (a1) 20 00 00 02 00 00 c0
  • bu contains the button state bitmask
  • ss contains the Expansion Port status bitmask
  • • Bit 0 is unknown
    • Bit 1 indicates whether or not an attachment is plugged in
    • Bit 2 indicates whether the speaker is enabled
    • Bit 3 indicates whether the IR sensor is enabled
    • Bits 4 - 8 indicate the status of the 4 LEDs
  • uu contains some unknown bytes
  • bl contains the battery level