Arduino millis() Rollover: Safe Timing Beyond 49 Days
Use unsigned subtraction to handle millis() rollover after 49.7 days, with a non-blocking blinker example and RTC guidance.
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Use unsigned subtraction to handle millis() rollover after 49.7 days, with a non-blocking blinker example and RTC guidance.
Learn how Arduino's millis() enables non-blocking delays, with a working code example, overflow handling, and common pitfalls to avoid.