Arduino Trolley Tutorial--fourth day (sensor)

Hello everyone, I'm a small-story.

Remember the previous section click the Open link

Today we talk about sensors.

Today, we talk about light and ultrasound.

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The light sense has three interfaces, namely:

UCC, out, GND.

The ultrasound has four interfaces, namely:

UCC, T, E, GND.

Here's how it works.

The ultrasonic wave is an ultrasonic wave, the sound wave touches the object bounces, the other end receives, thus judging the distance.

Light sense is the detection of light values, judging the minimum 0 maximum 255.

Attached procedure:

Car for avoiding obstacles

#include <servo.h> int pinlf=14;     int pinlb=15;     int pinrf=16;    int pinrb=17;   int pwmen1=3;int pwmen2=5;void Setup ()  {  serial.begin (9600);      Pinmode (pinlb , OUTPUT);   Pinmode (pinlf,output);   Pinmode (pinrb,output);   PinMode (PinRF,OUTPUT) ;   Pinmode (pwmen1,output);   Pinmode (pwmen2,output);   }void advance (int a)         {     digitalwrite (pinrf,high);      digitalwrite (PINRB , low);             analogwrite (pinrf,150);            &NB Sp;analogwrite (PINRB, 0);     digitalwrite (pinlf,high);      digitalwrite (PinLB, Low);             analogwrite (pinlf,150);            &NBS P;analogwrite (pinlb,0);     deLay (A * 100);        }void right (int b)            {    &NBSP;DIGITALW Rite (Pinrf,low);     digitalwrite (Pinrb,low);                analogwrite (pinrf,0);          &NBSP ;  analogwrite (PINRB, 0);     digitalwrite (Pinlf,high);        digitalwrite (pinlb,low);             analogwrite ( pinlf,150);             analogwrite (pinlb,0);     delay (b * 100);    }void left (int c)             {     digitalwrite (pinrf,hig H);     digitalwrite (Pinrb,low);                analogwrite (pinrf,150);          &NB Sp  analogwrite (PINRB, 0);     digitalwrite (Pinlf,low);        digitalwrite (pinlb,low);             analogwrite (pinlf,0);              analogwrite (pinlb,0);     delay (c * +);   }voi d turnr (int d)            {     digitalwrite (pinrf,low);     d Igitalwrite (Pinrb,high);                analogwrite (pinrf,0);          &NBSP ;  analogwrite (PINRB);     digitalwrite (Pinlf,high);        digitalwrite (pinlb,low);             analogwrite ( pinlf,100);             analogwrite (pinlb,0);     delay (d * 100);    }void turnl (int e)            {     digitalwrite (pinrf,high); &n Bsp    digitalwrite (Pinrb,low);                analogwrite (pinrf,150);            &NBSP;ANALOGWRI Te (PINRB, 0);     digitalwrite (Pinlf,low);        digitalwrite (pinlb,high);             analogwrite ( pinlf,0);             analogwrite (pinlb,150);     delay (E * 100);        void Stopp (int f)             {     digital Write (pinrb,low);     digitalwrite (pinrf,low);     digitalwrite (pinlb,low);     digitalwrite (pinlf,low);     delay (f * +);   }void back (int g)     &nbs P     {     digitalwrite (pinrf,low)       digitalwrite (Pinrb,high);              analogwrite (pinrf,0);            &NBsp;analogwrite (PINRB);     digitalwrite (Pinlf,low);       digitalwrite (pinlb,high);             analogwrite (pinlf,0 );             analogwrite (pinlb,150);     delay (g * 100);        }void loop ()  {    Advance (1)             &N bsp;    Delay (; )   back (1);                     delay (1000);        TURNL (1);                   delay (1000);        TURNR (1);                         delay (&NBSP);

Tracking trolley

#include <Servo.h> int pinlf=14;     int pinlb=15;     int pinrf=16;   int pinrb=17;    int pwm1=3;   int pwm2=5;  void Setup () {  serial.begin (9600);      Pinmode (pinlb,output);   Pinmode (pinlf,output);   Pinmode (pinrb,output);   Pinmode (pinrf,output);    } void advance (int a)       {     digitalwrite (pinrf,high);       Digitalwrite (pinrb,low);             Analogwrite (pinrf,130);             Analogwrite (PINRB, 0);     Digitalwrite (Pinlf,high);      Digitalwrite (pinlb,low);             Analogwrite (pinlf,200);             Analogwrite (pinlb,0);     Delay (A *);         } void Loop () {    advance (1);                }

Thank you

Arduino Trolley Tutorial--fourth day (sensor)