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Build a Cave Microclimate Logger with ESP32-WROVER, Dual SHT35 & SD Storage
Comprehensive step-by-step engineering guide for building an extreme-environment cave microclimate datalogger using ESP32-WROVER, dual SHT35 sensors, and SD card logging.
ESP32-WROVER-E (Xtensa Dual-Core with 8MB PSRAM)Precision Climate Sensors: Dual Industrial Sensirion SHT35 Probes ($\pm 1.5% \text{ RH}, \pm 0.1^\circ\text{C}$ Accuracy, I2C: 0x44 Entrance Zone & 0x45 Deep Chamber)Mass Storage: SPI MicroSD Card Data-Logging Shield with Power-Fail Safe FAT32 File FlushingSpeleological Engineering: Periodic On-Chip Condensation Bake-Off De-Fogging Cycle, Sub-20µA Battery Deep SleepTarget Search Intent: "100% relative humidity condensation saturation SHT35 fix", "MicroSD SPI bus contention with sensor I2C ESP32", "SD card FAT32 file corrupt on low battery fix", "Subterranean cave climate datalogger"1 Code • 0 CAD
Download verified Arduino C++ firmware, pinout table, and BOM for Build a Cave Microclimate Logger with ESP32-WROVER, Dual SHT35 & SD Storage.
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