Sensor Controller Design

Main Functions:

  1. Monitor sensors for change
  2. Notifies Main Controller when adjustments are necessary
  3. Notifies Alarm Watchdog when sensors

Input Pins

  1. O2 Sensor (Concentration in ppm)
  2. Flow Sensor (Flow rate in CFM)
  3. Temp Sensor (Temperature in C)
  4. Pressure Sensor (Pressure in Kpa)

Output Pins

  1. O2 Alarm Signal -> Alarm Watchdog
  2. Flow Alarm Signal -> Alarm Watchdog
  3. Temp Alarm Signal -> Alarm Watchdog
  4. Pressure Alarm Signal -> Alarm Watchdog
  5. O2 Concentration -> Main Controller
  6. Flow Rate -> Main Controller
  7. Temperature -> Main Controller
  8. Pressure -> Main Controller