Etg water level lab

.pdf

School

Grand Canyon University *

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Course

ETG210

Subject

Electrical Engineering

Date

Dec 6, 2023

Type

pdf

Pages

Uploaded by ConstableEnergy9929

Noah Ah Mook Sang ETG-222 Water Level Circuit Abstract This experiment is to design a water level sensing circuit, incorporating both visual and auditory cues, and capable of activating a pump. The experiment explores the possibilities of an automated water level sensing system by utilizing concepts like water conductivity for signal propagation, transistor amplification to support a diode, and Arduino programming to control an electric motor and piezo buzzer. Crucial components include code and the utilization of a breadboard circuit.The water level circuit should result in corresponding LEDs illuminating to indicate the water level at specific nodes. Upon reaching the final node, the Arduino should trigger a piezo buzzer and an electric motor.This Design exploits the electrical conductivity of water, the device is expected to transmit signal voltage through the water, activating the circuit at the specific node it contacts.The Setup involves utilizing an Arduino, LEDs, transistors, resistors, and jump wires of varying lengths and glass beaker. The design encountered partial success due to the lack of connection between the Arduino, piezo buzzer, and motor. Despite this limitation, the circuit successfully detected water levels and displayed them using LEDs.In conclusion, while the primary objective of the experiment was not fully accomplished, it proved the viability of the water level sensing device. To ensure that the circuit will work, future research endeavors should assess the code and test each component before integration into the circuit. Despite its limitations, this study establishes a groundwork for the development of an automated water level sensing and control system. Objects and Introduction This experiment focuses on the creation of a circuit that can read the level of water in a container, provide a visual and audio cue, as well as activate a pump. Some concepts that are used are using the conductivity of water to continue a signal voltage, the use of transistors to provide extra current to a diode, and the use of an arduino to trigger piezo buzzer and a motor. Other concepts that were reinforced was the use of code and a breadboard circuit. Theory If the Water Level sensor works it will correctly activate the corresponding LED that represents the water level height. It will only activate the right level when it reaches the right node and display the water levels hight with the Leds . When it reaches the final node it should activate the Arduinos code and activate the buzzer and motor. This will work because when the water hits a node the electricity will travel from the 5 V power supply, it will send the electricity through the water and connect to the node the water contacts,providing a signal voltage that activates the circuit. Simulation

(4 prong switch representing the different nodes in the glass beaker.) (Figure 1)

(Figure 2)

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