water-level-meter Measure the water level in Viktor's spring tank using ESP32 espidf Framework Links: Board: https://github.com/LilyGO/TTGO-LORA32 https://github.com/manuelbl/ttn-esp32 https://github.com/bertrik/LoraWanPmSensor/blob/master/Esp32PmSensor/Esp32PmSensor.ino Display Library u8g2: https://github.com/olikraus/u8g2/wiki