Hardware: Elements of a control system

Hardware: Elements of a control system

1. SENSORS

   • sound : microphone, speaker
   • radio frequence identifier
   • others
   • hall effect or magnetic presence
   • switch
   • pushswitch
   • trimmer or variable capacitor
   • photoresistant ar LDR
   • thermal resistances NTC or PTC
   • humidity HDT11
   • gases MQ
   • fire-smoke
   • of time: hour and date DS1307
   • tilt
   • location meter accelerometer and orientation indicator gyroscope
   • compass
   • ultrasonic distance meters
   • infrared distance meters
   • of presence by capacitive sensors
   • of presence by infrared

2. ACTUATOR

   • control
     • relay
     • diode
     • transistors
       • bilpolar BJT
       • MOSFET (controls of motors CC)

3. CONTROL CARD

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