Day 8: Potentiometer, Serial Monitor, and Dimming an LED
Day 8 of Learn Coding with Arduino — your first analog input. Read a potentiometer knob, print values to the Serial Monitor, and use PWM to dim an LED.
Potentiometer
Day 16: Show Sensor Values on the LCD
Day 16 of Learn Coding with Arduino — show live potentiometer and LDR readings on the 16x2 LCD without any flicker. Your Arduino gets a real dashboard.