Differences

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--- en-us_commands:reference:irtcsquarewave [2026/09/07 21:52] – 만듦 - 바깥 편집 127.0.0.1
+++ en-us_commands:reference:irtcsquarewave [2026/09/14 20:30] (current) – external edit 127.0.0.1
@@ Line 14: / Line 14: @@
 ===== Example =====
+This example connects a DS3231 RTC module to the MPINO-16A8R8T I²C port. The RTC's 32 kHz and square-wave outputs use different pins.
 <code cpp>
 void setup() {
-  if (!IrtcBegin()) return;
+  Serial.begin(115200);
+  if (!IrtcBegin()) {  // Check the DS3231 connection and start the RTC.
-  // Output a 1Hz square wave on the INT/SQW terminal.
+    Serial.println(F("DS3231 not found"));
-  IrtcSquareWave(true, IRTC_SQUARE_WAVE_1HZ);
+    return;
+  }
+  const bool configured = IrtcSquareWave(true, IRTC_SQUARE_WAVE_1HZ);  // Output a 1 Hz square wave on the RTC SQW pin.
+  Serial.println(configured ? F("Output enabled") : F("RTC setup failed"));
 }
-void loop() {
+void loop() {}
-}
 </code>
@@ Line 30: / Line 34: @@
 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: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:irtc32khz|Irtc32kHz() View detailed description]]
 [[:en-us_commands:builtin|← Built-in Command List]]