Modul 3 : Pendahuluan

[KEMBALI KE MENU SEBELUMNYA]

DAFTAR ISI

1. Kondisi

2. Gambar Rangkaian Simulasi

3. Flowchart

4. Listing Program

5. Video

6. Link Download

1. Kondisi [Kembali]

    Percobaan 2 Kondisi 13 : Ganti LED menjadi Buzzer, Tambahkan resistor sebelum Buzzer sebesar 1k ohm

2. Gambar Rangkaian Simulasi [Kembali]

         

3. Flowchart [Kembali]

• MASTER

• SLAVE

4. Listing Program [Kembali]

• MASTER

#include <SPI.h> //Deklarasi library SPI

#define button 2

void setup (void) {

  pinMode(button, INPUT_PULLUP);

  Serial.begin(115200 ); //Set baud rate 115200

  digitalWrite(SS, HIGH);

  // disable Slave Select

  SPI.begin ();

  SPI.setClockDivider(SPI_CLOCK_DIV8); //divide the clock by 8

}

void loop (void) {

  char c;

  int nilai=digitalRead(button);

  if(nilai==0){

   digitalWrite(SS, LOW); //enable Slave Select

  // send test string

  for (const char * p = "Hello, world!\r" ; c = *p; p++)

  {

    SPI.transfer (c);

    Serial.print(c);

  }

  digitalWrite(SS, HIGH); // disable Slave Select

  delay(1000);

  }

} 

• SLAVE

#include <SPI.h>

#define led 2

char buff [50];

volatile byte indx;

volatile boolean process;

void setup (void) {

  Serial.begin (115200);

  pinMode(led, OUTPUT); // have to send on master in so it set as output

  SPCR |= _BV(SPE); // turn on SPI in slave mode

  indx = 0; // buffer empty

  process = false;

  SPI.attachInterrupt(); // turn on interrupt

}

ISR (SPI_STC_vect) // SPI interrupt routine

{

  byte c = SPDR; // read byte from SPI Data Register

  if (indx < sizeof buff) {

    buff [indx++] = c; // save data in the next index in the array buff

    if (c == '\r') //check for the end of the word

      process = true;

  }

}

void loop (void) {

  if (process) {

    digitalWrite(led, HIGH);

    process = false; //reset the process

    Serial.println (buff); //print the array on serial monitor

    indx = 0; //reset button to zero

    delay(1000);

  }

  else

  {

    digitalWrite(led, LOW);

  }

} 

5. Video [Kembali]

6. Link Download [Kembali]

    File Rangkaian klik disini

    Listing Program Master klik disini

    Listing Program Slave klik disini

    Datasheet Arduino Uno klik disini 

    Library Arduino klik disini

    Video Simulasi klik disini

    HTML klik disini