This project is a handheld metal detector used by security personnel that sound buzzer when it detects a metal near it. - Structure & Tuning Methods, Automatic Wireless Health Monitoring System for Patients Circuit and Working. It measures the voltage which is compared with predefined values to turn on the LEDs corresponding to the level of charge. (Sensor using LDR & Transistor BC 547.) Now touch these two wires with your finger. The output of the latch is then used to display the corresponding number or the LED on the corresponding contestant side. How to Calculate the Battery Charging Time & Battery Charging Current – Example. For instance, the project-based courses provided by Skyfi Labs can help you build good electrical mini projects while learning all the technical concepts involved. The TV remote will transmit IR to the IR receiver which is interfaced with an Arduino to control the motors accordingly. Carbon Monoxide (CO) detector is an Arduino based project where we use a CO sensor module with the Arduino to detect & activate an alarm in your house. We depends on ad revenue to keep creating quality content for you to learn and enjoy for free. Similarly, when the voltage supply level increases above 1/3 then the output goes low. In this project, we are going to control the speed of a DC motor with temperature. However, In case of a power failure, it is feasible to use a battery. (CD Disc Generator) from Trash.
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Similarly, when a person comes out of the washroom and closes the door, the switch gets back to its normal position and gets closed. The Voltage across the circuit can be measured by placing the probes of the multimeter across the circuit. In this project, we are going to use an Arduino to switch a lamp ON through a relay at night time. This is the model of a very simple generator to understand the working principle of it. This circuit is a decoder made from basic logic gate using combinational logic. Pins 2 and 3 are the input pins while the pin 3 is a non-inverting terminal, and the pin 2 is an inverting terminal. The idea is to call for help during emergency or panic & it is should be done by just pressing a button. The inversion is done using an astable multivibrator chip that switches two MOSFET to switch the 12v polarity. This circuit will blink the led ON & OFF at regular intervals. Touch these wires with a finger, then the LED lights up! This circuit control red, yellow & green color LEDs using a 555 timer through a decade counter. The pin1 in the circuit can be connected to positive voltage supply whereas pin-8 is connected to the ground terminal. The output from the OPAMP at pin 6 is given to the pin 2 of the timer through a pull-up resistor. The output from the sensor unit is fed to the 555 Timer IC through a transistor and a resistor. The speed is calculated using the time duration & the distance between the sensors. The sensor uses a burst of ultrasonic rays that bounce back from the object. It is a very cheap & efficient project. This is the Simple light sensitivity Metronome circuit using Transistors. The aim of this project is to use an RTC (real-time clock) IC to provide current time to microcontroller & display it using LCD with the current date. Tip 3 - Check for the feasibility to do the project: Before getting started with your EEE mini project check for the feasibility of completing it on time and budget. Whether it comes to core job or higher studies admission, people prefer candidates who come with a great profile. This project proposes a system that is capable of displaying the current temperature through a display & also records the temperature every minute for analyzing it later. This is a simple fun project to demonstrate magnetic levitation. Here other kinds of phototransistors can also be used instead of LI4F1, but L14F1 is more sensitive. Nowadays all the electronic gadgets you use depend on the DC power supply for their operations. The output state can be returned from low to high on time to make the driver stage of triggering relay. Latest Electrical (EEE) Projects List for Electrical Engineering students
In this simple circuit, we are going to interface a DC motor with a microcontroller. The Skyfi Labs certificate with the unique number shows the world that you have learnt while doing the project and helps you stand apart from lakhs of other student projects. This is a tutorial for understanding Raspberry Pi & how to use it to design interesting projects. In this project, we are going to make a switch that is activated by light to turn on or OFF electrical appliances. Then, what should be done next? Your email address will not be published. This is fed to the timer IC input through a potential divider arrangement. The OPAMP IC LM741 is used here as a comparator. The basic idea here is to vary the intensity of the lamps at a frequency of one-minute intervals and to achieve this, we have to provide oscillating input to the switch or the relay driving the lamps. – Examples in British and SI System, Thevenin’s Theorem. In this project, we are going to convert the 12v DC into 220v AC. The SCR used here acts as a rectifier. So you can make a mini project for understanding how the NAND gate can be used to implement each basic logic gate. In this project, we are designing a door lock mechanism that is operated by a microcontroller. When the rain starts, the probes get interconnected by the water droplets as water is a good conductor of current, and therefore, current starts to flow through the probes, and a voltage is applied to the inverting terminal of the OPAMP. Thank you for sharing this blog. It is a self-explanatory pictorial guide for PCB designing used in projects. The last part is the LED and the resistor. It is a mini air cooler that provides cooling. There are two push buttons that increment & decrement the count number which is to be displayed using a 7 segment display or LCD. It is also used to measure DC as well as AC parameters. The speed of the LED switching depends on the clock cycle provided by the 555 Timer. This is done using two methods i.e. FET can support high frequency thus it can be used to make a mini audio mixer with multiple input channels. When this signal is applied to the input pin of the timer, it is not triggered and there is no output. 10K and 330K resistors, BC548 and BC 558 transistors, 3V battery, 01mf capacitor, and speaker. Thus, if the temperature range exceeds the limited value, then the transistor will turn ON LED indicator to indicate high temperature. Try these hands-on experiments and projects to (safely) learn about the science of electricity, which is the movement of elections between atoms. When the voltage of the battery reduces below 9V due to utilization, the base voltage of the T1 transistor falls while its emitter voltage remains the same since the C1 capacitor is fully charged. Because the non-inverting terminal of the OPAMP is at a higher voltage compared to the inverting terminal, the output of the OPAMP is at a logic high. This circuit is used for switching the solder off when the temperature gets too high to prevent any damage. Skyfi Labs Project Based Courses also allow you to work in a team to build your electrical mini projects. Tip 4 - Gheck for the EEE mini projects done by seniors: It is always a good practice to check the electrical mini projects done by your seniors. Best IoT Mini Project Topics
Whenever the battery is charged, a small amount of current flows through the potential divider arrangement of R4, R5, and the potentiometer. In the above circuit, the LC circuit can be formed using an inductor and capacitor like L1 & C3 so that oscillations can be formed. The simple electronic project built using an LED indicator, transistor, and thermistor can be used as a fire alarm system. Multimeter includes a galvanometer that is connected in series with a resistance. The oscillation circuit built in the above circuit that changes the frequency of the tone, and thus tone can be changed. This is a mini project where you can test any 555 timer IC because they are used in almost every project. It uses IR sensors placed on the opposite pillars of the door. This circuit gives an indication using an LED when the battery voltage falls below 9 volts. The circuit configuration of an LED flasher is shown below. The range of the voltmeter can be modified by using resistors as voltage divider at the input. Now give the connections at the two exposed ends, one connection goes to the +ve supply and another goes to the base terminal of the transistor. In this fire alarm circuit, we are using a thermistor to sense the temperature. What is Raspberry Pi? A DPST switch is used to control the switching of each pair of lamps. This is a perfect mini project for beginners. A resistor of 10K ohm is connected between pins 7 and Vcc supply. It is powered by any USB port such as a laptop or computer, a mobile charger etc. This is a simple circuit made from a thermistor whose resistance changes with the temperature. If the human body touches the touch sensor of the circuit, then a voltage developed on the touch plate is used for triggering the timer. This is the pin you connect to the most positive voltage. The +ve terminals of the lamp are connected to the anode terminal of the battery and the –ve terminal of the battery is connected to the –ve terminal of the battery. This is a simple model of a generator/alternator that helps in understanding the basic principles on which it works. These audio signals are fed to the second input of the chip through the C1 capacitor. By changing the time it takes to charge the capacitor to activate the timer. Contact: 1800-123-7177
Multiplexer or MUX that operates as a digital selector switch to selects only out of many input lines. At last, the buzzer will be activated to generate the sound. This circuit is ideal to monitor the level of charge in 12V small batteries. It uses latches to lock the first entry & disabling the latches at the same time to not register the next entry. Here, the capacitor acts like a noise filter. The voltage regulator IC will regulate the voltage to + 5v which will be converted by the voltage converter IC into -5v at the output. This project provides information about the level of water in a tank. It uses a thermistor that has negative temperature coefficient to sense the high temperature & switch off the solder through a relay. But, the main problem with the batteries is their limited lifetime.
The prime mover used for this generator is a DC motor. Up tp 93% Off - Launching Official Electrical Technology Store - Shop Now! 25% Off on Electrical Engineering Shirts. In this system, a 555 timer is used as an oscillator that is capable of generating pulses at a maximum of 10 minutes time interval. This project uses multiple magnets designed in a way to balance the repulsion between them in order to levitate. When someone presses the button, a 555 timer circuit activates & triggers the decade counter with a high-frequency clock. Grab the best jobs & higher studies opportunities.
We are going to use an LDR to sense the intensity of light which will be read by the Arduino. The sensor used is, an IR LED and a phototransistor arrangement, placed adjacent to each other. How to Calculate/Find the Rating of Transformer in kVA (Single Phase and Three Phase)? The smart fan electronic circuit consists of an IR LED and photodiode used for detecting a person. A potential divider circuit is designed through 220 K Ohm resistor & LDR by connecting in series. Mini projects if done in the correct way can help electrical and electrical engineering (EEE) students develop the necessary practical knowledge needed for a sucessful career in core technologies. This article gives top 10 simple electronic circuits for beginners and mini projects for engineering students, but not for final year projects. Hereby changing the capacitor C3, the transmitter frequency can be changed.