This article will cover a list of simple first level beginners projects we covered on this platform. These projects will meet all their beginner needs, but we do not recommend you to choose these projects as last year's projects. This list contains a combination of our tested DIY projects, which are specifically tailored for beginners to electronics. So let's jump straight and take a look at the top 5 simple electronic projects for beginners.
1) Water Level Indicator
Number 1 of our top 5 simple electronics projects is a simple water level indicator project. Water level indicators are simple electronic circuits used to determine the current level of any liquid being observed. They are an important part of several processes, such as the cooling tower early warning systems, irrigation control, fuel tanks and summer bombs.
Components needed
S.No Component Value Qty
1) PNP Transistors A1015 3
2) PVC Tubing As per need
3) Probes Copper Wires 3
4) LEDs 5mm. (Red, Green. Blue) 3
5) Resistors 470Ω 3
6) Battery 9V 1
7) Battery Clips 1
8) Breadboard 1
9) Connecting wires As per 1
Circuit diagram
Whenever the tank fills, we receive alerts at particular levels. Here we have created 3 levels (low, medium and complete) regarding tank capacity. We have added 3 LED to indicate the three levels (low, medium and complete).
The base of each transistor joins a wire of Aluminium or copper with final isolation removed, acting like a probe. When water increases the base of each transistor gets an electric connection to 9V DC through the water and relevant probe. This, in turn, makes transistors behave to shine the LED and indicate the level of water.
2) Laser Tripwire Alarm
At number 2 on our Top 5 Simple Electronics Projects list, the laser tripwire alarm project is a very useful security feature that one can employ in your home to keep burglars and intruders out. It can detect the movement of people or objects as they pass through the laser beam and provide trigger alarms as alert signals to the proper authorities.
Components needed
S.No Component Value Qty
1) Timer IC NE556 1
2) Laser Diode Circuit (input). 1
3) Loudspeaker 8Ω, 0.5W 1
4) LDR 1
5) NPN Transistor 2N3904 1
6) Potentiometer 1MΩ, 100K 2
7) Resistors. 22KΩ,10KΩ,1KΩ 3
8) Capacitors 470μF,0.1μF,100μF,10μF 4
9) Battery 9V DC 1
10) Battery Clips. 1
11) Breadboard 1
12) Connecting Wires 1
Circuit diagram.
When an object is between the laser beam and the LDR, the timer section of the circuit activates for a preset period of time and then turns on the buzzer circuit built around the NE556 timer IC. The preset time period can be increased or decreased by changing the capacitor value from 470μF. The time period for the timer section can be adjusted with the 1MΩ potentiometer.
3. Simple Metal Detector
This circuit is an inexpensive metal detector that uses a single BC548 transistor and an old radio. When you place this metal detector circuit near any metal object, you will hear a hiss on your AM radio, indicating the detection of a metal object. L1 is equivalent to 60 turns of enameled copper wire wound in a 1 cm PVC tube. The power supply for the circuit must be a 9V or 6V battery.
A beep circuit is a simple electronic device that produces a monotonic beep, which can be used to signal an emergency in places such as hospitals, police stations or fire stations. Typical uses of pagers include devices such as alarm devices, timers, etc.
Components needed.
S.No Component Value Qty
1) 2-Input NAND gate IC CD4011 1
2) NPN Transistor. 2N4401 1
3) Piezoelectric Buzzer. 3V 1
4) LED 5mm. 1
5) Electrolytic Capacitor 470μF 1
6) Resistors 1KΩ,1.2KΩ,470Ω 3
7) Battery. 9V. 1
8) Battery Clips 1
9) Breadboard 1
10) Connecting Wires 1
Here the 2 NAND gates are connected as an astable multivibrator due to the output on pin 4 of the IC going up and down continuously. This continuously toggles the 2N4401 transistor (ON and OFF) that provides the pulse for the piezo buzzer. Therefore, the piezo buzzer generates beeps and the LED flashes continuously.
5. LED Chaser Circuit
Components needed
S.N Component Value Qty
1) Decade Counter IC CD4017 1
2) LEDs 5mm 10
3) Pushbutton – 1
4) Resistor 1KΩ. 1
5) Battery 9V 1
6) Battery Clips. – 1
7) Breadboard – 1
8) Connecting Wires – As per need
Circuit operation
A push button is connected to the clock input of the CD4017 decade counter IC. The CD4017 has 10 output pins and each pin is connected to an LED. By default, the first output pin is on or high and the others are off. Whenever the 4017 IC clock input pin detects an increase in voltage (from low to high), it turns off the current output and turns on the next sequential output. This swapping of outputs makes the LEDs appear to continue, the cycle continues until the last LED, and then the output returns to the first LED.
Watch out for part 2
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1 Comments
What a lucrative idea.
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