get the analog value of water level using A0 pin of NodeMCU.
post the water level to thingsCloud iot platform.
after comparing the water level with the threshold water level it turns the buzzer and led on.
iPankajrai/IoT-Solution-for-Water-Level-Monitoring-using-ThingsCloud
This Project will enable you to monitor the water level of any reservoir, and will alarm you when the water level crosses a threshold level.
C++MIT