- Total I/O : 22.
- SPI Flash: 32 Mbps by default.
- Interface support: SD card, UART / SPI / SDIO / I2C / PWM / I2S / IR / GPIO / capacitive touch sensor ADC / DAC.
- Audio: CVSD and SBC audio.
- Serial port speed: default is 115200bps.
- Built-in clock: 40 MHz crystal.
- Antenna Shape: Built-in PCB Antenna and IPEX Antenna.
- Voltage: 2.7-3.6 V (recommended: 3.3 V).
- Operating Current: Average 80 mA.
- Delivery current: minimum 500 mA.
Sờ đồ I/O ESP32-S :