Day 8: Potentiometer, Serial Monitor, and Dimming an LED 11 April 2026·1534 words·8 mins Arduino Arduino Beginner Kids Analog Potentiometer Serial Pwm Map 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.
Day 9: Light Sensor — Arduino Learns to See 11 April 2026·1259 words·6 mins Arduino Arduino Beginner Kids Sensor Ldr Analog Threshold Day 9 of Learn Coding with Arduino — wire a photoresistor to read how bright the room is, then set a threshold for when it is dark enough for a light.