/* Description: Adjust the speed of FAN Unit through PWM. */ #include const int motor_pin = 21; int freq = 10000; int ledChannel = 0; int resolution = 10; void setup() { // put your setup code here, to run once: M5.begin(); M5.Power.begin(); M5.Lcd.setCursor(120, 110, 4); M5.Lcd.println("MOTOR"); ledcSetup(ledChannel, freq, resolution); ledcAttachPin(motor_pin, ledChannel); } void loop() { // put your main code here, to run repeatedly: ledcWrite(ledChannel, 512); delay(1000); ledcWrite(ledChannel, 0); delay(1000); }