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The ESP32 is a feature-rich, low-cost microcontroller with integrated WiFi (802.11 b/g/n) and Bluetooth 4.2/BLE. Powered by a dual-core Xtensa LX6 processor running up to 240 MHz, it is the go-to choice for IoT projects, home automation, and wireless sensor nodes.
Available in 4 MB, 8 MB, and 16 MB flash variants. GPIO pins support SPI, I2C, UART, PWM, DAC, and ADC. Operating voltage: 3.3 V. Low power modes down to 10 µA make it ideal for battery-powered applications.