Analog Input Sensors

Port AD, pins 53 to 60

Variable Resistors (3)

Measure turn displacement
Port AD0 - AD2
address 0070h, 0072h, and 0074h
Reflectance Sensors (5)

Measure the degree to which a surface can reflect the infrared signal

Darker the surface: more infrared emission is absorbed
- device will register a relatively high voltage level

Brighter the surface: more infrared emission is reflected
- device will register a relatively low voltage level
Port AD3 - AD7
address 0076h, 0078h, 007Ah, 007Ch, and 007Eh