AT#7: ANALOGWRITE & PWM

1. ANALOGWRITE(PIN, VALUE) COMMAND

Function:

Adjusts the brightness of an LED using PWM (Pulse Width Modulation).

Value range:

From 0 to 255, where 0 represents the minimum brightness (OFF) and 255 represents the maximum brightness.

Practice Exercise

IDENTIFYING PWM PINS

Practice Exercise

• analogWrite(pin, value); can be used with PWM-capable pins, which are typically marked with a ~ symbol on standard Arduino boards.
• PWM (Pulse Width Modulation) controls the average output voltage by rapidly switching the signal between HIGH and LOW, allowing the LED brightness to be adjusted.