I'm trying to control a DC motor via IR sensor.
no idea how to coding the source with under the conditions
please help me. 
parts -
- arduino mega
- IR sensor
- L298n(motor driver)
- DC motor
- 12V power
current state = DC motor stop / IR sensor on
-
IR sensor on - not detected - DC motor stop
-
IR sensor detected - DC motor go forward (set time) - Stop - IR sensor no detected during (set time) -
DC motor reverse - Stop
- IR sensor detected - DC motor go forward (set time) - Stop - secondly, IR sensor detected -
DC motor reverse
Conditon 1.
during DC motor go forward(set time), IR sensor detected secondly -
DC motor reverse(as time go forward as) - Stop
another example
- - IR - detected - DC motor FW(4 sec) - Stop - IR sensor no detective untill (25sec) -
DC motor RV(4sec) - Stop
- IR - detected - during DC motor forwarding (2.5 sec) - IR sensor detected -
DC motor reversing(2.5 sec) - Stop
- - IR - detected - DC motor FW(4 sec) - Stop - (after 18sec) IR sensor detected -
DC motor reversing(4 sec) - Stop
i wrote the code which does not work what i want....
int Enable = 2;
int IR = 3;
int IR_status = 0;
int cnt=0;
// motor one
int enA = 10;
int a1 = 9;
int a2 = 8;
// motor two
int enB = 5;
int b1 = 7;
int b2 = 6;
void setup() {
pinMode(Enable, OUTPUT);
pinMode(IR, INPUT);
pinMode(enA, OUTPUT);
pinMode(enB, OUTPUT);
pinMode(a1, OUTPUT);
pinMode(a2, OUTPUT);
pinMode(b1, OUTPUT);
pinMode(b2, OUTPUT);
}
void FW() { for(int i=0; i<100; i++){
analogWrite(enA,150); // Motor A
digitalWrite(a1,LOW);
digitalWrite(a2,HIGH);
analogWrite(enB,150); // Motor B
digitalWrite(b1,LOW);
digitalWrite(b2,HIGH);
}
}
void RV() {for(int i=0; i<100; i++){
analogWrite(enA,150); // Motor A
digitalWrite(a1,HIGH);
digitalWrite(a2,LOW);
analogWrite(enB,150); // Motor B
digitalWrite(b1,HIGH);
digitalWrite(b2,LOW);
}
}
void loop() {
digitalWrite(Enable,HIGH);
IR_status = digitalRead(IR);
if(IR_status){if(cnt==0)FW();}
if(cnt){if(--cnt==0)RV();}
}