alignG-S has two measurement modes working simultaneously, Proximity Mode and Distance Measurement Mode:
(1) alignG-S as a proximity sensor:
Pin#4 of alignG-S is always 0 (0V) until the sensor is positioned in 5mm proximity of an object; then, pin #4 of alignG-S becomes 1 (3.3V). alignG as a proximity sensor has a precision of 2.5 micron (0.0001”)
(2) alignG-S as a distance measurement sensor:
The sensor measures the distance from the object and shows the result in its Analog pin (pin #7), serial output pin (pin #6), and PWM pin (pin #8). alignG-S as a distance sensor has a precision of 25 micron (0.001”) and accuracy of 50 micron (0.002”)