Pressure position sensors and actuators are represented by red large and blue circles on the seating, respectively. Black circles display ultrasound sensors in the backrest, yellow arrows show output peripheral, and red arrows indicate peripheral input into the analog-digital converter.
S1= Preasure sensor, value 0-1023 decimal
S2= Preasure sensor, value 0-1023 decimal
S3= Preasure sensor, value 0-1023 decimal
S4= Ultrasonic sensor, value 0-15 cm