This ESPRESSIF-ESP32 microprocessor based board features QSPI flash 4MB, 520 kB SRAM, USB to TTL, UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, ADC, DACLNA, a 1.14 inch IPS ST7789V display and supports 802.11 b/g/n Wi-Fi, Bluetooth v4.2BR/EDR, IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT, cloud server development, SDK, AT + instruction set, and OTA firmware upgrades.