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Reading Sensors: Digital Buttons & Analog LDRs
Lesson 4 of 6

Reading Sensors: Digital Buttons & Analog LDRs

Duration: 22:10

Reading Sensors: Digital Buttons & Analog LDRs

Understanding pull-up resistors, digitalRead, analogRead (0-1023), and the Serial Monitor.

Key Technical Points

  • •Internal pull-up mode: INPUT_PULLUP and debounce handling.
  • •Reading photoresistor light levels using analogRead(A0).
  • •Formatting telemetry output with Serial.println().