TinyGPS++ — compact NMEA-0183 parser ported to ESP-IDF. No Arduino dependency. millis() is implemented via esp_timer_get_time(). Parses GGA and RMC sentences; exposes location, date, time, speed, course, altitude, satellite count, HDOP, and arbitrary custom terms.
Standalone ESP-IDF captive portal component. Registers all standard OS captive-portal detection endpoints on an esp_http_server instance and redirects clients to the device's built-in web interface with a single function call. Supports iOS, macOS, Android, Windows, Firefox, and Chrome.