Tugas Pendahuluan Modul 3

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DAFTAR ISI

1. Kondisi

2. Gambar Rangkaian

3. Flowchart

4. Listing

5. Video Simulasi
6. Link Download

1. Kondisi [Kembali]

Ganti LED menjadi Buzzer, Tambahkan resistor sebelum Buzzer sebesar 1k ohm.

2. Gambar Rangkaian  [Kembali]

3. Flowchart [Kembali]

4. Listing Program [Kembali]

Untuk MASTER

#include <SPI.h> //Deklarasi library SPI void setup (void) { 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; 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(2000); }

untuk SLAVE

#include <SPI.h>
char buff [50];
volatile byte indx;
volatile boolean process;
void setup (void) {
  Serial.begin (115200);
  pinMode(MISO, 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) {
    process = false; //reset the process
    Serial.println (buff); //print the array on serial monitor
    indx = 0; //reset button to zero
  }

}

5. Video Simulasi [Kembali]

6. Link Download [Kembali]

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