1、EXCELLENT CHIP: The core of this development module is for ESP32S chip, which is designed with good scalability and adaptability. 2、2 CPU CORES: There are 2 CPU cores that can be individually controlled or powered, the clock frequency can be adjusted within 80-240MHz. 3、GOOD COMPATIBILITY: Compatible for ESP8266 for ESP12E development board and for NODEMCU V2 GPIO expansion board, with strong practicality. 4、RICH PERIPHERALS: Integrated capacitive sensor, Hall sensor, low noise sensing amplifier, memory card interface, high speed SDIO SPI, UART, I2C. 5、APPLICABLE RANGE: Suitable for low power sensor network or other demanding tasks such as voice encoding, music streaming, MP3 decoding. Item Type: Development Board Material: FR 4 Material Board Size: Approx. 63 x 69mm / 2.5 x 2.7in Working Voltage: 2.3-3.6V Working Current: 80mA Clock Frequency: 80-240MHz Flash Memory: 4MB Data Rate: 54Mbps Processor: Dual Core for Tensilica Xtensa 32 Bit LX6 Static Random Access Memory: 512KB 1 x Development Board