Water level monitor using open-source microcontrollers (Arduino, ESP8266, ESP32) and ultrasonic sensors HC-SR04 / JSN-SR04T / or TOF laser sensors VL53L1X / VL53L0X. Arduino Core & ESP-IDF implementations. For ESP32 available also with FreeRTOS. ESP8266 and ESP32 support for Ultra Low Power deep sleep app. ESP32 available with PHY Ethernet LAN8720
php arduino esp8266 web esp32 wifi ulp freertos hc-sr04 ethernet esp-idf sigfox well hc-srf05 dyp-me007 jsn-sr04t esp-idf-framework hladinomer waterwell ethernet-phy
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Updated
Jan 7, 2026 - C++