Time

Every microcontroller project that logs data, schedules actions or shows a clock eventually needs to know the time. Getting it right is surprisingly hard: internal clocks drift, RTC modules need to be set, and NTP needs internet access, which you often don’t have in the field, in a workshop or Read more

“Time is what keeps everything from happening at once.” — Ray Cummings Every microcontroller has a heartbeat. A quartz crystal vibrates millions of times per second, a counter ticks upward, and the board always knows how long it has been since it woke up. But ask a freshly powered ESP32 Read more