04-10-2020, 22:01
Kod:
// Date and time functions using a DS3231 RTC connected via I2C and Wire lib
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>
#include "RTClib.h"
// Software SPI (slower updates, more flexible pin options):
// pin 7 - Serial clock out (SCLK)
// pin 6 - Serial data out (DIN)
// pin 5 - Data/Command select (D/C)
// pin 4 - LCD chip select (CS)
// pin 3 - LCD reset (RST)
Adafruit_PCD8544 display = Adafruit_PCD8544(7, 6, 5, 4, 3);
RTC_DS3231 rtc;
// the pin that is connected to SQW
#define CLOCK_INTERRUPT_PIN 2
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
volatile bool state;
void setup () {
pinMode(LED_BUILTIN, OUTPUT);
Serial.begin(9600);
display.begin();
display.setContrast(37);
display.setCursor(0,0);
display.println("Witam");
display.display();
delay(2000);
display.clearDisplay(); // clears the screen and buffer
#ifndef ESP8266
while (!Serial); // wait for serial port to connect. Needed for native USB
#endif
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
Serial.flush();
abort();
}
if (rtc.lostPower()) {
Serial.println("RTC lost power, let's set the time!");
// When time needs to be set on a new device, or after a power loss, the
// following line sets the RTC to the date & time this sketch was compiled
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
// This line sets the RTC with an explicit date & time, for example to set
// January 21, 2014 at 3am you would call:
// rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
}
// When time needs to be re-set on a previously configured device, the
// following line sets the RTC to the date & time this sketch was compiled
// rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
// This line sets the RTC with an explicit date & time, for example to set
// January 21, 2014 at 3am you would call:
// rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
//we don't need the 32K Pin, so disable it
rtc.disable32K();
rtc.writeSqwPinMode(DS3231_SquareWave1Hz);
// Making it so, that the alarm will trigger an interrupt
pinMode(CLOCK_INTERRUPT_PIN, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(CLOCK_INTERRUPT_PIN), oneSecond, RISING);
}
void loop () {
digitalWrite(LED_BUILTIN, state);
DateTime now = rtc.now();
Serial.print(now.year(), DEC);
Serial.print('/');
Serial.print(now.month(), DEC);
Serial.print('/');
Serial.print(now.day(), DEC);
Serial.print(" (");
Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
Serial.print(") ");
Serial.print(now.hour(), DEC);
Serial.print(':');
Serial.print(now.minute(), DEC);
Serial.print(':');
Serial.print(now.second(), DEC);
Serial.println();
Serial.print("Temperature: ");
Serial.print(rtc.getTemperature());
Serial.println(" C");
Serial.println();
delay(1000);
}
void oneSecond() {
state=!state;
}Po wpisaniu tej funkcji nie jest wykonywany program z zatrzymuje się w funkcji setup ().
Gdy natomiast odkomentuję display.begin(); to wszystko działa poprawnie i program się wykonuje co można zaobserwować w oknie monitora szeregowego.Co może być powodem?