A circuit was designed to display the non-combustible liquid level inside tank. It is installed in a water tank to power the water pump up or down.
Fritzing CAD software for schematic and PCB design
MOSFET 2N700
ESP8266/NodeMCU and ESP-01s Mesh network
Relay control for Pump operation
MQTT communication protocol
Electrolysis-free circuit design for Corrosion free sensing probes
Multi-level LED indication
Maintenance free
Power Scheduling of Pump
Web-based scheduler and controller