Write CSV to an SD Card
Append readings to a file for later analysis.
Why an SD Card?
An SD card gives your device cheap, roomy storage that survives power loss. It is perfect for keeping a long history of logged readings. 💾
Why CSV?
CSV means comma-separated values: plain text where each line is a record and commas split the fields. Spreadsheets open it instantly.
All lessons in this course
- Get Real Time with NTP/RTC
- Write CSV to an SD Card
- Buffer & Batch Uploads
- Visualize Logged Data