DC Motor Fan - In depth and WORKING Tutorial

[@Waiduino]

#define ENABLE 5 #define DIRA 3 #define DIRB 4 int i; void setup() { //---set pin direction pinMode(ENABLE,OUTPUT); pinMode(DIRA,OUTPUT); pinMode(DIRB,OUTPUT); Serial.begin(9600); } void loop() { Serial.println("Start The Motors!"); //---PWM example, full speed then slow for (i=255;i>100;i--) { digitalWrite(DIRA,HIGH); //one way digitalWrite(DIRB,LOW); analogWrite(ENABLE,i); //enable on delay(200); } for (i=100;i