I have shown how to make the IoT based water level monitoring system using ESP32 Blynk and ultrasonic sensor. For the low water level, the alarm will start and you will get a Blynk notification on the smartphone through the internet. Also, you can monitor the water tank level on OLED.
For this IoT-based water level indicator project, you can use any ultrasonic sensor as the water level sensor in the tank. You can always monitor the tank water level on OLED and if the ESP32 is connected to WiFi, you can monitor the water level from anywhere in the world on Blynk IoT App.
I have made the circuit on zero PCB using the PCB layout, and also shared the wireless water tank level indicator circuit and source code.
The alarm will ring when the tank is full and when the water level drops below the threshold limit.
I have not connected relays to the control pump but if you want you can connect a relay instead of the green LED to control a pump.
I have shown how to make the IoT based water level monitoring system using ESP32 Blynk and ultrasonic sensor. For the low water level, the alarm will start and you will get a Blynk notification on the smartphone through the internet. Also, you can monitor the water tank level on OLED.
For this IoT-based water level indicator project, you can use any ultrasonic sensor as the water level sensor in the tank. You can always monitor the tank water level on OLED and if the ESP32 is connected to WiFi, you can monitor the water level from anywhere in the world on Blynk IoT App.
I have made the circuit on zero PCB using the PCB layout, and also shared the wireless water tank level indicator circuit and source code.
The alarm will ring when the tank is full and when the water level drops below the threshold limit.
I have not connected relays to the control pump but if you want you can connect a relay instead of the green LED to control a pump.
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