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Learn how to connect an ESP32 to Wi‑Fi, send data to a REST API, and balance power consumption against latency using deep sleep. A step‑by‑step guide with code, trade‑offs, and practical checks.
I am designing a retry-safe configuration store for a sketch that must run on both AVR boards and ESP32 cores. The goal is to use EEPROM.update() so that repeated attempts with identical values do not consume additional write cycles, while still handling power-loss interruption for multi-byte records. On AVR cores, update() programs the cell immediately when
arduino