Which ESP32 microcontroller is best for data logging?
“Best” depends on what kind of data-logger you’re building (battery life vs. throughput vs. easy PC sync). Here’s the short list I recommend, with why/when to pick each one. Top picks by use-case 1) ESP32-S3-WROOM-1 /1N8R8 (with PSRAM) — Best all-rounder for SD logging + easy USB sync Why: Has USB-OTG (device and host) built in, so you can expose logs to a PC via TinyUSB (CDC/MSC) without extra chips. It also includes a native SD/MMC host controller (1-bit/4-bit/8-bit modes) for higher SD speeds than SPI, plus optional PSRAM for big buffers. Use when: You want fast SD writes, large burst buffers, and plug-to-PC convenience (appear as a drive or virtual COM). Notes: Follow SD bus pull-up rules (10 kΩ on CMD/DAT lines) and prefer 4-bit SDMMC over SPI for speed. 2) ESP32-WROVER -E (classic ESP32 + PSRAM) — Stable, tons of tutorials, high SDMMC throughput Why: The original ESP32 has a full SDMMC host (two slots, up to 4-bit) and WROVER adds PSRAM (g...