ESP32: Microcontrollers with Wi-Fi

Wireless built into the chip.

The ESP32 family combines a fast dual-core or single-core 32-bit processor with Wi-Fi and Bluetooth on one chip, plus many GPIO pins, ADCs and timers.

It suits connected projects such as sensor loggers and smart switches. Radios consume power in bursts, so battery designs rely on deep sleep between transmissions.

Logic levels are 3.3 V, so use level shifters when talking to 5 V parts.