I want to create a low powered circuit that monitors the water level of a tank and sends out a message when the tank is opened. It needs to be a very low powered circuit and battery powered. The circuitry should be able to lock and unlock the tank through a mobile app. I am thinking of using GSM to send the messages. To read the values of the tank I am going to use a float sensor. Im not sure what the process should be to check whether the tank is opened. To lock and unlock the tank im thiking of using a stepper motor however im concerned of the power usage. The microcontroller I am thinking of using the ESP32, however I am not to sure how to reduce the power usage.
Any guidance on design choices or improvements will be much appreciated.
Any guidance on design choices or improvements will be much appreciated.
