Differences

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--- en-us_commands:reference:irtcset [2026/09/07 21:52] – 만듦 - 바깥 편집 127.0.0.1
+++ en-us_commands:reference:irtcset [2026/09/08 00:53] (current) – 바깥 편집 127.0.0.1
@@ Line 19: / Line 19: @@
 void setup() {
   Serial.begin(115200);
+  if (!IrtcBegin()) return;  // Check the DS3231 RTC connection and begin operation.
-  if (!IrtcBegin()) {
+  bool valid = false;
-    Serial.println(F("DS3231 connection failed"));
+  if (IrtcTimeValid(valid) && !valid) {  // Check whether the RTC time is reliable.
-    return;
+    IrtcSet(2026, 9, 7, 9, 0, 0);  // Set the RTC date and time.
+    IrtcClearOscillatorStopFlag();  // Clear the oscillator-stop flag.
   }
-  // Run once initially, then comment out.
-  // IrtcSet(2026, 8, 10, 14, 30, 0);
 }
 void loop() {
   IrtcDateTime now;
-  if (IrtcRead(now)) {
+  uint32_t unixTime = 0;
-    Serial.print(now.year);
+  float rtcTemperature = 0.0F;
-    Serial.print('/');
+  if (IrtcRead(now) && IrtcUnixTime(unixTime) && IrtcGetTemperature(rtcTemperature)) {  // Return the RTC's internal temperature. / Return the current time as Unix time. / Read the RTC date and time.
-    Serial.print(now.month);
+    Serial.print(unixTime); Serial.print(','); Serial.println(rtcTemperature, 2);
-    Serial.print('/');
-    Serial.print(now.day);
-    Serial.print(' ');
-    Serial.print(now.hour);
-    Serial.print(':');
-    Serial.print(now.minute);
-    Serial.print(':');
-    Serial.println(now.second);
   }
   delay(1000);
@@ Line 51: / Line 42: @@
 Run each device's corresponding ''Begin'' command first. Check I²C addresses and pin sharing; if the ''bool'' return value is ''false'', inspect wiring and power.
+===== Built-in Commands in the Same Category =====
+  * [[:en-us_commands:reference:irtcbegin|IrtcBegin() View detailed description]]
+  * [[:en-us_commands:reference:irtcread|IrtcRead() View detailed description]]
+  * [[:en-us_commands:reference:irtcunixtime|IrtcUnixTime() View detailed description]]
+  * [[:en-us_commands:reference:irtcgettemperature|IrtcGetTemperature() View detailed description]]
+  * [[:en-us_commands:reference:irtctimevalid|IrtcTimeValid() View detailed description]]
+  * [[:en-us_commands:reference:irtcclearoscillatorstopflag|IrtcClearOscillatorStopFlag() View detailed description]]
+  * [[:en-us_commands:reference:irtcsetalarm1|IrtcSetAlarm1() View detailed description]]
+  * [[:en-us_commands:reference:irtcsetalarm2|IrtcSetAlarm2() View detailed description]]
+  * [[:en-us_commands:reference:irtcalarmenable|IrtcAlarmEnable() View detailed description]]
+  * [[:en-us_commands:reference:irtcalarmenabled|IrtcAlarmEnabled() View detailed description]]
+  * [[:en-us_commands:reference:irtcalarmtriggered|IrtcAlarmTriggered() View detailed description]]
+  * [[:en-us_commands:reference:irtcsquarewave|IrtcSquareWave() View detailed description]]
+  * [[:en-us_commands:reference:irtc32khz|Irtc32kHz() View detailed description]]
 [[:en-us_commands:builtin|← Built-in Command List]]