ESP32: log sensor data to a microSD card
Write timestamped CSV data from ESP32 sensors to a microSD card. FAT file basics, real timestamps, daily file rotation, and the flush pattern that survives power cuts.
Tag
#fat
1 tutorial
Tag
1 tutorial
Write timestamped CSV data from ESP32 sensors to a microSD card. FAT file basics, real timestamps, daily file rotation, and the flush pattern that survives power cuts.