Given below are the specifications of Nano ESP32 in tabular form: Microcontroller u-blox NORA-W106 (ESP32-S3) WiFi + Bluetooth ESP32-S3(SOC) USB connector USB-C Pins Built-in LED Pin 13 Built-in RGB LED pins 14-16 Digital I/O Pins 14 Analog input pins 8(12-Bit) PWM pins 5(13-Bit) External interrupts All digital pins Communication UART 2x I2C 1x, A4 (SDA), A5 (SCL) SPI D11 (COPI), D12 (CIPO), D13 (SCK).