Sonar
Comm port
FLASH
RAM
Controls and Indicators
Power
Charge
Reset
Motors/Test
Speaker
52
1 x 8 (multiplexed)
2 x RS-232
2 x SCI
128 KB
32 KB
Robot/accessories power ON/OFF
System power/battery recharge
Warm reboot/download
Motors/maintenance/self-tests
Piezo