ESP32S minimal example
Tutorial: https://esp32s.com/wiki/grove-base-xiao-esp32-i2c-setup/
Arduino-ESP32: 3.3.0
FQBN: esp32:esp32:XIAO_ESP32C3
Libraries: No external libraries
Reviewed: 2026-10-22
Read the wiring/model notes first. Compilation check only; no physical bench test.
