Sensors

  • Sensors generate the data for an IoT system
  • Sensors can measure "stuff" such as temperature and humidity
  • Sensors generate electrical signals
  • The electrical signals can be analog or digital
  • Sensors interfaces: ADC, GPIO, UART, I2C, I2S, MIPI CSI

Humidity Sensors:
  • Measure humidity
  • Output current, voltage, or digital codes

Temperature Sensors: 
  • Measure temperature
  • Output current, voltage, or digital codes

Motion Sensors
  • Detect motion
  • Output binary signals 

Cameras
  • Capture images and videos