Get Real Time with NTP/RTC
Stamp data with accurate dates and times.
Why Time Matters
A reading like "24.3 C" is half a story. To make sense of logged data, every sample needs a timestamp telling you exactly when it happened. ⏰
Arduino Has No Clock
Your Arduino forgets the date the moment power drops. It only counts milliseconds since boot, so it has no idea what real-world wall-clock time it is.
All lessons in this course
- Get Real Time with NTP/RTC
- Write CSV to an SD Card
- Buffer & Batch Uploads
- Visualize Logged Data