Battery level indicator circuit diagram. Led dot display based battery charge level indicator circuit diagram gallery of electronic circuits and projects providing lot of diy circuit diagrams robotics microcontroller projects electronic development tools. The circuit is very simple and low cost using. This water level indicator project circuit is designed using avr to detect and indicate the water level in an overhead tank or any other water container.
Simple battery charger circuit and battery level indicator with low battery recharge alarm gallery of electronic circuits and projects providing lot of diy circuit diagrams robotics microcontroller projects electronic development tools. It is called the water level indicator. A good designed circuit of a alkaline battery charger.
The interesting thing of this circuit is that it uses a led that will show the charge of battery by blinking when you connect a totally discharged battery the led blink faster but when the battery charging process starts the led blinking speed will dicrease slowly and completely stop when the battery will fully charged. Lm1830 based liquid level indicator circuit. Nowadays everybody has overhead tank at their homes.
Lm1830 is a monolithic integrated circuit that can be used in liquid level indicator control systemsmanufactured by national semiconductors the lm1830 can detect the presence or absence of polar fluids. Water level indicator with alarm. Water level indicator circuit schematic simple two wire remote monitoring unit three led level display 9v battery powered.
But everyone who has a water tank above knows the kind of problems. Learn to build electronic circuits. Here is a simple water level buzzer circuit which can be used to detect or sense the level of water in tank pool washing machines etc.