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ESP32 FAQ: Questions, Answered.

103 questions across every ESP32 topic. Pick one on the left — the answer loads right here.

FAQ › Getting Started › ESP32 Specs: Pins, Cores, and Limits

// specs · pins · limits · faq ESP32 Specs: Pins, Cores, and Limits Filed under: ESP32 · Specs · Updated August 2026 The numbers everyone asks about: cores, pins, GPIO, I2C device counts, and how many volts the ESP32 can take — with the caveats the datasheet leaves out. How Many Cores Does

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