ESP8266 microcontroller

1. CPU: 32-bit Tensilica L106 @ 80 MHz (up to 160 MHz) 2. RAM: 96 KB 3. Flash Memory: 512 KB to 16 MB (typically 4 MB on NodeMCU) 4. Wi-Fi: 802.11 b/g/n (2.4 GHz) 5. Wi-Fi Modes: Station / Access Point / Both 6. Security: WEP, WPA, WPA2 7. GPIO Pins: Up to 17 (ESP-12E), 2 (ESP-01) 8. ADC: 1× 10-bit (input range: 0–1V) 9. Interfaces: UART, SPI, I2C, PWM, I2S 10. Operating Voltage: 3.0V – 3.6V 11. Power Consumption: 70–200 mA (active), <20 µA (deep sleep) 12. Programming Support: Arduino IDE, MicroPython, Lua, PlatformIO