ESP-WROOM-32 (ESP32) is the latest generation of WiFi & Bluetooth dual-mode dual-core dual-core wireless communication chip released by Espressif. The ESP32 chip integrates a wealth of hardware peripherals, including capacitive touch sensors, Hall sensors, low-noise sensor amplifiers, SD card interfaces, Ethernet interfaces, high-speed SDIO / SPI, UART, I2S and I2C, etc.