Water Sensor Alarm Circuit Diagram

This circuit uses the 555 timer along with some sensor element which can detect moisture in this circuit based project 555 timer.

Water sensor alarm circuit diagram. Here is the schematic diagram of the circuit. Control and monitoring tags. This small water sensor alarm circuit makes a loud warning sound when a humidity sensor detects a quantity of water. This circuit assembly is an application of low power comparator lm1801 made by national semiconductor.

It is a very simple rain alarm circuit which is designed using mainly a transistor water sensor and a 555 timer ic. The conductivity of the water is used to active the circuit built around ic1a. This project is useful at homes to detect the water wysiwyg imageupload supply in the situations when the timing of water supply is not fixed. This circuit assembly is an application of low power comparator lm1801 made by national semiconductor.

Circuit diagram and working explanation. The read more. The reference voltage for the integrated circuit is fixed with the help of r2. Don t trust just try it yourself.

The circuit sends an acoustic alarm when it senses a drop of water leak. In the water alarm circuit the feedback resistor consists of r1 and the water sensor in series. Make a simple circuit of a water sensor by using a few electrical devices. This simple water level sensor circuit monitors the presence of water in a certain location or container.

Water level alarm using micro controllers like 8051 and avr are shown in previous articles this article shows simple circuits of water level indicator with alarm. Resistor r2 defines the inverter s input signal level when the sensor is not in water. They can be two tinned copper wires but you can also use two pieces of circuit board with the copper surface coated with solder. Check out the water level indicator circuit too.

Whenever there is a rain rain drops falls on the rain sensor and as you can see in the diagram of rain sensor water on rain sensor would short the point a and b. This is a water level indicator with alarm circuit. R1 prevents any possibility of short circuit between the inverter s input and out put. This circuit is used to indicate the amount of water present in the overhead tank.

4 a 10kohms resistors. This circuit is an ac. They are 1 npn transistor. It is very simple to build and it is made of a single ic and some passive components.

Generally water stored in overhead tank is wasted due to over flow when the tank is full. This circuit is very sensitive to trigger and activate the audio visual alarm when wetness is sensed at its probes. This small water sensor alarm circuit makes a loud warning sound when a humidity sensor detects a quantity of water. The reference voltage for the integrated circuit is fixed with the help of r2.

June 6 2009 circuitguy.