Arduino core for ESP8266 WiFi chip

Arduino core for ESP8266 WiFi chip ESP8266 Arduino core comes with libraries to communicate over WiFi using TCP and UDP, set up HTTP, mDNS, SSDP, and DNS servers, do OTA updates, use a file system in flash memory, and work with SD cards, servos, SPI and I2C peripherals. https://github.com/esp8266/Arduino