How does a water level indicator work?
When water level increases and touches the sensor, the Red LED will glow indicating that there is water within the tank. As the water level continues to rise and reaches half the tank, Yellow LED will glow. When the water in the tank rises to full an alarm is made by the buzzer as an indication that the tank is full.
What is the use of IC in water level indicator?
This leads to wastage of water. Now to reduce these kinds of water wastage, we are going to build a water level indicator circuit using 555 timer IC. This is a useful project which detects the water level and gives a signal (buzzer) to the user indicating that the water has reached the desired level.
How do you make a water level indicator using IC?
We can design the water level indicator circuit using ULN2003 IC as the main component….Pin Diagram:
| Pin No. | Function | Name |
|---|---|---|
| 7 | Input for 3rd channel | Input 7 |
| 8 | 0V | Ground |
| 9 | Freewheeling diodes | Common |
| 10 | Output for 7th channel | Output 7 |
What is the use of water level sensor?
Level sensors are used to detect the level of substances that can flow. Such substances include liquids, slurries, granular material and powders. Level measurements can be done inside containers or it can be the level of a river or lake.
What is the use of water level alarm?
The electronic water level alarm gives the information about the level of the water level of the water tank if the water tank is full or the water tank is empty. Hence, any person can identify the level of water. By using the liquid level sensor we can measure the level of water in the water tank.
How does a transistor work in water level indicator?
When the water touches the metal contact in which base of each transistor is connected, a small current flows and turns on the transistor. When a transistor turns on, LED connected to it glows. Thus LEDs will be turned on depending up on the level of water.
Why bc547 transistor is used in water level indicator?
Water tank overflow is a common problem which leads to the wastage of water. In this project I am using the transistor based water level indicator circuit is very useful to indicate the water levels in a tank. If the water level is full, then the circuits beeps through the buzzer notifying that the water level is full.
Why is ULN2003 used in water level indicator?
The ULN2003 is known for its high-current, high-voltage capacity. The drivers can be paralleled for even higher current output. It works on the same principle as the NPN transistors work but in a more compact design outline. The ULN2003A is 7 NPN transistors in one package.
How many pins does IC 555 consist of?
8-pins
The 555 timer IC consist of 8-pins where each pin has some function. The pin configuration of this IC is shown below. Pin-1 is a GND pin which is used to supply a zero voltage to the IC.
Which water level sensor is best?
Top 10 Best Water Tank Level Sensors 2021
| # | Product | |
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| 1 | RecPro Water Level Screw-in Sensors | RV Water Tank Probe Sensors | 6 Sensors | Tank Sensors | Fresh… | Check Price Now |
| 2 | High/Low Water Level Sensor Detector Alarm 120 dB Red Strobe Siren, Adjustable Alarm Volume, Sump… | Check Price Now |
How does the IC 555 water level controller work?
The output pin of the ic 555 timer is connected to the relay and diode . Then the relay is maintained at a required level and the motor will be start up by switching on . When the motor is on its ready to fill the tank by recognizing the sensors or water level in the tank. It is depend up on the level of water.
Can a 555 timer be used for a water level indicator?
Now to reduce these kinds of water wastage, we are going to build a water level indicator circuit using 555 timer IC. This is a useful project which detects the water level and gives a signal (buzzer) to the user indicating that the water has reached the desired level.
What kind of IC is a water level sensor?
The control stage of the circuit is an NE 555 IC; here we have manipulated the flip-flop within chip 555. Our project include two water level sensors, one particular attached at the top and the other towards the bottom. Functioning of this circuit is practically identical to a stable mutlivibrator Bi.
What is test point 4 of IC 555?
Test point 4 Reading It is measured out across the positive end of CRO towards pin3 of IC 555 and negative end at ground level. Tank is below up level and full level is: 0V Tank is empty,tank is below low level: 6V 6v 17. Test point 5 T5 : Collector of Q2 This is connected to VCC and relay .