Differences

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--- en-us_commands:reference:irtctimevalid [2026/09/07 21:52] – 만듦 - 바깥 편집 127.0.0.1
+++ en-us_commands:reference:irtctimevalid [2026/09/08 00:53] (current) – 바깥 편집 127.0.0.1
@@ Line 16: / Line 16: @@
 <code cpp>
-bool valid;
+void setup() {
-if (IrtcTimeValid(valid) && !valid) {
+  Serial.begin(115200);
-  // Check the power supply or battery and set the time again.
+  if (!IrtcBegin()) return;  // Check the DS3231 RTC connection and begin operation.
+  bool valid = false;
+  if (IrtcTimeValid(valid) && !valid) {  // Check whether the RTC time is reliable.
+    IrtcSet(2026, 9, 7, 9, 0, 0);  // Set the RTC date and time.
+    IrtcClearOscillatorStopFlag();  // Clear the oscillator-stop flag.
+  }
+}
+void loop() {
+  IrtcDateTime now;
+  uint32_t unixTime = 0;
+  float rtcTemperature = 0.0F;
+  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(unixTime); Serial.print(','); Serial.println(rtcTemperature, 2);
+  }
+  delay(1000);
 }
 </code>
@@ Line 25: / Line 41: @@
 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:irtcset|IrtcSet() 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: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]]