Ok I have this arduino powered autonomes car. It uses a Sharp proximity sensor. It runs well when it does not sense anyting but when i put my hand near it sometimes is turns but other times it stops and the motor moves a tiny bit and then it stops.
Here is a video ..... - YouTube
Side comments
when it stops the tx and rx lights on the arduino are flashing (simmilar to when it finds an object). After a while (a minute or two... or sometimes never - have to restart it) when it continues going strait it stops blinking.
this is my code
int d1a=13;
int d2a= 12;
int s1= 10;
int d1b=11;
int d2b=8;
int sb=9;
int sensorPin = 5;
void setup () {
Serial.begin(9600);
pinMode (d1a, OUTPUT);
pinMode (d2a, OUTPUT);
pinMode (s1, OUTPUT);
pinMode (d1b, OUTPUT);
pinMode (d2b, OUTPUT);
pinMode (sb, OUTPUT);
}
void loop () {
int val= analogRead (sensorPin);
Serial.println (val);
if (val > 520) {
analogWrite (10, 255);
digitalWrite (13 , HIGH);
digitalWrite (12, LOW);
analogWrite (9, 255);
digitalWrite (11 , HIGH);
digitalWrite (8, LOW);
delay (1500);
analogWrite (10, 190);
digitalWrite (13 , HIGH);
digitalWrite (12, LOW);
analogWrite (9, 190);
digitalWrite (11 , LOW);
digitalWrite (8, HIGH);
delay (1000);
}
else {
analogWrite (10, 200);
digitalWrite (13 ,LOW);
digitalWrite (12, HIGH);
analogWrite (9, 200);
digitalWrite (11 , LOW);
digitalWrite (8, HIGH);
}
}
(code tags added by moderator)