en-us_commands:reference:irtcbegin
Table of Contents
IrtcBegin()
IrtcBegin() checks the DS3231 RTC connection and starts using it.
bool IrtcBegin()
Commands
| Command | Arguments | Return Value | Operation |
|---|---|---|---|
IrtcBegin() | None | bool | Checks the DS3231 RTC connection and starts using it. |
Example
void setup() { Serial.begin(115200); if (!IrtcBegin()) { // Check the DS3231 RTC connection and begin operation. Serial.println(F("DS3231 connection failed")); return; } // Run once initially, then comment out. // IrtcSet(2026, 8, 10, 14, 30, 0); } void loop() { IrtcDateTime now; if (IrtcRead(now)) { // Read the RTC date and time. Serial.print(now.year); Serial.print('/'); Serial.print(now.month); 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); }
Precautions
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.txt · Last modified: by 127.0.0.1