Simple electronic projects

Last updated on May 20th, 2022 at 11:00 pm

Do you want to have electronics skills? The best learning is making a simple electronic project. There are over 99+ posts on my site. I like the simple electronics projects that worked surely. You also are like me. Because I know that you need to have a great experience.

Simple Electronics Project banner

Searching them as you want in categories, may be difficult for you.  So, I will show you the top 100 list of projects.

I like small or mini-projects using simple and low cost. Like diodes, transistors, digital electronics ICs and more.

Imagine you need a LED flasher circuit. You have many choices to do.
first, transistors circuit. Second, 555 timer version. And later, Arduino.

Which is better? For me, Easy and cheap is better. I pick the transistor version first. Then, IC-555 or op-amp. For Arduino is so expensive for only LED blink.

Who is suitable for these? …

  • Those who interested as a hobby
  • Student schools
  • ECE(Electronics and Communication Engineering)
  • EEE(Electrical and Electronics Engineering) students
  • Those who are interested as a hobby. Some are over 60 years old and love Electronics too.
  • Also, study homeschooling the same as us.

It is good learning by doing!

If the project does not work, we learn the solution. It is not a failure, but it is another way of learning.

Most simple electronic circuits, we assemble on a universal PCB Board. Because cheaper and faster than buying KITS.

If you try to create these mini electronic projects with small circuits. And get the results out.

Please remember to share it with us.

Mini Projects for beginner

Any success or failure is a good learning

I tell you frankly that I did not test all the Electronic circuits Projects shown on this website. So there might be some circuits that do not work well as they should be.

Anyone who tests and finds some projects that do not work at all or do not work well. Please inform me so that we will find out together what the problems are.

Anyways, some friends have built some projects as same as those shown on the website. And found that they worked well.

I believe that any success and failure of the projects are all good learning.

Top 100 Simple Electronics Projects for you

Power Amplifiers

A lot of Power amplifier circuit diagram with PCB

Do you want to listen to loud music? Yes, you need to use these power amplifiers.

I collect them on this post so easy to read.

See Top 5 Amplifier Projects

TDA2050 amplifier stereo 35W-75W

TDA2050 amplifier stereo 35W-75W

If you would like to build a HI-FI power amplifier project that power output size about 30 watts to 75W. […]

Read More

TDA2030 Bridge amplifier circuit with PCB

TDA2030 Bridge amplifier project 35 watts

Use only one IC. Its output power is 14 watts. But if use 2 ICs mixed in Bridge BCL amplifier mode. Oh.. the output is 35 watts.

Read more

LM386 Datasheet Low voltage audio power amplifier

LM386 audio amplifier circuit with PCB

Although the LM386 audio amplifier is very old. But they still have a lot of usefulness. Thanks to the inventor ...
Read More
Power Amp Super Bridge 120W by IC TDA2030

TDA2030 subwoofer amplifier circuit

This is TDA2030 subwoofer amplifier circuit that uses the integrated circuit. and Transistor BD249 or TIP31 or TIP41 or C1061 ...
Read More
TDA2822 stereo amplifier datasheet

TDA2822 stereo amplifier circuit with pcb & datasheet

This is TDA2822 small stereo power amplifier. People like TDA2822. Me too. Why? Dual Amplifiers in one DIP-8 similar for ...
Read More
Small hearing aids circuit project

Cheap & Small hearing aids circuit project

This is cheap hearing aids circuit project. Or a small listen booster is a simple function. They are similar to ...
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Hi Fi audio tone control circuit using low noise transistors

Hi Fi audio tone control circuit using low noise transistors

If you are looking for a Hi-Fi audio tone control circuit. This may be the best choice for you. Because ...
Read More
Tone control circuits using op amp NE5532

5 Tone control circuits using op-amp NE5532

Are you wanting to hear good music? There are many factors to do. But this is an important thing that ...
Read More
25W HI-FI power amplifier using LM1875

LM1875 Datasheet 30W HIFi audio amplifier circuit

Imagine Your house is mini or you are a beginner or getting a hurry. You love music and want a ...
Read More
Low voltage amplifier circuit using TDA7052

TDA7052 amplifier | Low voltage 3V, 5V | 1 W BTL

This is TDA7052, Tiny stereo audio amplifier for mobile or Ipad. Even a 5v audio amplifier circuit diagram. It helps ...
Read More
4 types of Preamplifier circuits using Transistors

4 types of Preamplifier circuits using Transistors

If we want a good quality sound system. The first thing that we should choose, the good preamplifier circuit. Some ...
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50W OCL Audio Power Amplifier using 2N3055

2N3055 Amplifier circuit with PCB, 50W to 60W

These are 4 simple 50w OTL audio amplifier circuits using 2N3055 as main parts. We can build easy and cheap ...
Read More

You can’t find this circuit, right? These circuits I have chosen.
Click here: Power amplifier with PCB


If you want to convert a DC low voltage to AC volt output.  You should these circuits. See Top 10 list below.

Making SIMPLE inverter circuit diagram in 5 min

If you have only 5 minutes, you need to use a small light bulb with a 12V battery.  How to do it? This will show build the simplest inverter—just 2 transistors, 2 resistors, and a transformer only.

DC to AC Converter circuit

This is a simple DC to AC Converter circuit,to converts 12VDC to 220VAC 50Hz/110V 60Hz as adjust frequency output using CD4047,MOSFET,power transistor and more

Small high volts shock

If you want to make a funny circuit for people. This circuit may make a laughter.  It is a small high volts shock circuit. The output is low current. It is not harmful to people. On circuit has a few components just two small NPN transistors, 2 resistors, and a transformer. So easy to builds and inexpensive!

Make Simple 555 Inverter circuit using MOSFET

Here is ic 555 inverter circuit. is easy and small size. Because use NE555 and MOSFET as main. When use source is 12V battery will have output of 100 watts.[…]

Not only that you can see all at:: Inverter Circuits

Power Supplies

Top 100 power supply circuits

I love energy every circuit needs to use energy. So, I love to collect many power supply diagram. You may like them like that me.

12V to 5V converter step down regulator:
In many ways. To convert 12V source to 5V DC supply for digital circuit, microcontroller and More!

0-60V Dual Variable supply using LM317 & LM337:
This is a 0-60V, Dual Variable power supply circuit using LM317 and LM337 at 1.5A current so can build to easy with PCB layout, adjustable voltage VR1, VR2

Look more: Power Supply Projects

DC to DC converter

Battery chargers

Gel cell battery charger circuit

It can charge any size of the Gel cell batteries and extend the life of the Gel Cell battery. While the circuit is running, the LED indicates charging.

Automatic battery charger circuit:
Using the small SCR and relay is cheap and can use all battery size by input source.

LM317 Lead Acid battery charger

Automatic Ni-MH battery charger

Portable power pack for mobile phones

Make solar aa battery charger by TL497

Converts a supply to automatic 12V charger

Battery full charge alarm circuit

Simple nicad battery charger circuit

Solar Cell

  1. Outdoor solar lights circuits
  2. Simplest Automatic Solar Light
  3. Simple Solar light alarm circuit
  4. Automatic night LED light switch Project Using Digital gate and transistors

Others audio system

RF circuits

Oscillator generator

Dimmers and Controls

  • 8 AC Light Dimmers:
    Many ideas!   Why use it? Imagine in your bedroom too bright. Change a light bulb to low watts. It is not convenient. So, if you can adjust brightness. Is it great? Also, reduce wastage of an iron solder and more.

Timer & Delay

If you want to turn on a light for 2 hours. Or, you need limit time you kids watch the computer for 1 hour. These circuits may better tool for us. Look at below.

4060 timer control relay, 19s,4h, 5 hours

CD4060 Timer Control Circuits with alarm, 19 seconds to 5 hours

If you are looking for long a timer circuit of more than 2 hours, highly exact and easy to build, ...
Read More
5-30 minuts timer circuit using IC 555

5-20 minuts timer circuit using IC 555

Here is a 555 timer circuit project. You can use it for the snooze alarm with a buzzer. When on-time ...
Read More
Cheap Digital time clock with alarm circuit by LM8560

LM8560 Digital clock circuit diagram with alarm

LM8560 is digital clock circuit IC that electronic amateurs are most interested. And The clock ICs that most popular are ...
Read More


Motor controls

LED flasher, Lighting

Digital circuits

Meters, Detectors, Testers

Continuity tester circuit with Buzzer and LED

Create continuity tester circuit with buzzer and LED for check solder joint defects, not kill components on PCB, as probe gives tiny current and voltage.




Tone Generator, Music, Melody



Electronics Learning


I always try to make Electronics Learning Easy.


  1. KoMo Tan

    Would like to know if you sell project kit for the DIY Projects you promote?
    km tan


    Respected sir,

  3. bala

    i am bala,we need 12volt 25khz output circuit diagram

  4. Paul Buhagiar

    Dear Sir/Madam,

    Just visited your website. I`m looking for a maow diy electronic sound effect.

    Hope to hear from you,

    Regards and thanks,

  5. P450

    Why only transistor 2SC9013 is used in mosquito repellent circuit ? What is the use of it.

  6. swathi reddy

    dear sir/madam,

    am looking for a new project idea relaed to socio economic….. hope u wil help…

    regards and thanks
    swathi reddy c

  7. utpal roy

    I want Hi Fi Stereo 1000 rms watts circuit for my home, which circuits spare parts are available in the market presently.


    i want a simple circuit for robot


    I would like to understand the use of each electronic components in a circuit.
    How they works?
    How to identify?
    And uses of electronic components….
    How can we make a small robotic hand?

  10. vasudev

    hi momename which type of battery do you use

  11. peter

    Hi sir. Good day sir. I am one of your website users. I have one small issue that I want to share with u. I got a 2kva ready made inverter which works fine with my appliances. But when I tried to use it with my freezer. It comes on and d engine starts but it doesn’t get cold even after hours.i decided to plug it to my working generator and it worked fine. Pls what could have caused it for the inverter not to make the freezer get cold and how can I go about fixing it. Your quick response will be highly appreciated sir.

    • Bob England

      Inverters don’t supply enough current for the compressor to run properly. Fan motor in evaporator section is probably the motor being heard.

  12. JESSIE

    I want some simple project applied maths

  13. Rasika Perera

    Dear Sir,

    I looking for some circuit for VGA Splitter unite, I need to make one vga in put and two vga out put.
    Please help me to make that unite.


  14. adegunwa tolu

    I am a student,and a project was given ;its a rodent repellent circuit with an incoporated meow sound,that is, a cat sound.I have worked a little but its not giving the required sound pls could you give me a little idea on it.

  15. prits

    I wanting circuits for the doorstop alarm

  16. Sura jamal

    I’m a student of ECE
    I have to design a simple electronics circuit and work on it
    Do you have any suggestions to me?
    Thank you

  17. jafar

    hello; i am iranian
    i am looking for

    regulator 12V 1A circuit

    please help me;

    your site is best ….

  18. hussain


    give me a suitable idea project for higher national diploma.

  19. dexter

    hi sir/madam,
    I have done a AC to DC converter which is a thyristor controlled as a project what improvement can i make for my future projects .now i am in need of doing my second project which has to be in relevance to the previous one , so i request u to give some ideas for my project .

  20. ajshwarya

    please suggest some electronics and telecommunication mini project ideas

  21. Neethu

    i would like to know some miniproject ideas for ece , with circuit diagrams.. That will be really helpfull if they can do myself.

  22. mona

    please suggest some electrinics and telecommunication mini projects ideas.i wanting circuits for microprocessor based mini projects

  23. andi

    hi i need help.
    i need a lead acid car battery charger +80ah can you pls help me?

  24. Ajia

    pls i need an three differnt undergraduate project topics .

  25. Ajia

    pls i need three differnt undergraduate project topics .

  26. Robert

      I’m in a project would build a frequency controller for a three-phase motor 12 volt 65amp.
      will have any idea how I will be able to design,

  27. aimable

    hi, i’m lookin’ fr the transistor easy circuit for my project. thx
    i’m wait for the good answer.

  28. shrikant

    Hello….I need information about wireless power transfer project..

  29. Bhavdipsinh dodiya

    Pls I am need programin for interfaceing rf module xymk 5v.i am waiting for your good answer. ….

  30. Amir Redi

    I like all this but i need 12V 300Ahr lead acid battery circute

  31. Masud Rana

    I Like your web Site Very Very Nice

  32. mohamad

    I have a need
    12 to 220 V inverter with a power of 500 watts
    Please help me

  33. Rodrigo Oliveros

    Guys i need a car overheating LED detector circuit ty.. for school project.

  34. muhammad arslan

    i want some rc planes citrcuits.

  35. uma

    i need some innovative mini project , and it should be practically useful ..and should be low cost

  36. prashanth

    plz suggest me any project idea 2do in our college and it should be useful 2college

  37. vignesh

    i need a mini project using only transistor

  38. Shaila khandekar

    I am 2nd year electronic engineering student… I want mini project using ic of 74 series

  39. samiran maji

    very good project.i am interested to buy pcb.

  40. mahmmad

    I am electrical and electronic s itama. Ripering 7year experience my work

  41. Jimmy Ong

    Sir, Good morning I am looking for my Pioneer home theater blu ray player “power supplies ”
    Model : XV – BD422W kindly suggest or advice.

    Thanks & regards,


  42. Yohanes

    Pls I want to know the importance of basic electronic circuit to basic schools

  43. anusree subramanian

    i am an electronics student ….i want a simple mini project using less expensive components……..could you help me,…….

  44. srst nikesh

    hi gays
    i want to make simple and cheapest ac to dc battery charger. any body help me which one circuit may i use? it is for my house hold purpose.

  45. naveena maria john

    Hello sir , I am an electronics student . can you suggest me a circuit to detect pit on the road during reverse of a car

  46. Pingback: Neethu Chandra Hot |

  47. Umar njidda abubakar

    most of the parts you are using are old part,they are very difecult to find in the market today

  48. SV Adsul

    Dear Sir, I am interested make a domestic door bell. Which may work on 3 to 4 V DC supply. Please suggest a circuit diagram.

    —SV Adsul

  49. abirami

    i need game electronics project.

  50. Archana.m

    Good evening sir,I am electruonics &communication student(1st yr),i have a idea in mini project

  51. marlan jared

    hi we would like to have an idea about a project we’re going to propose using transistor as the main component.. can you give us some of your projects that is not that complicated.. thank you

  52. P.MOHANA

    i am EEE student.i need less expansive easy mini project.

  53. nelson

    so nice projects , contune doing better?????

  54. Snezan

    In dire need of a simple defibrilator tester circuit design…….have a simple one I got from the net but it’s to basic..

  55. Vasanth

    Cool! Had some really interesting mini project topics and is very helpful for engineering aspirants. I found a blog to be useful which says about- 2 Most Important Reasons why Core Engineers (EEE/ECE/Mechanical) should give importance to Mini Project. More at

  56. rathiga.v

    i am a ece studenr i want a latest mini project topics

  57. irfan tahir

    sir kindly send me 12vdc to 5 v dc 5/ 10 amp circuit diagram send me
    regards irfan tahir

  58. Atul


    16X2 LCD————-90.00 each
    ARDUINO UNO R3—345.00 EACH

  59. khan

    too hard some of the projects//using too many components// humbug //

  60. johnson.p

    Interesting and Easy mininprojects…thanks

    • Peersingh

      Interesting and easy mininproject

  61. akram hussain barcha

    sir ma apny bachy ko electronics sikhana chahta hon,is k liye mjy simple projects kit ki zarorat hy.

  62. I like the Simple music sound using UM66T
    How much?
    I can make it today.

  63. MR OHM 1970

    What A Great Assortment Of EASY TO BUILD Electronics Circuits!!!!!!!!!!!!!!!

    • Hi MR OHM 1970,
      Thanks for your feedback.
      I think that all circuit can be easily built with a few components.

  64. thank you for sharing this topics.codebind technologies offers best internship in chennai for ece students in following platforms embedded system, matlab, VLSI, plc scada .it gives the more practical knowledge.

  65. Paul Brace

    Hi ElecCircuit, I love all your circuits and look forward to receiving them in the post. Perhaps in the new year you design a variable “voltage/Current” 240V ac and say 1A power supply with panel meters as well, I cannot remember the make but the usa has one but it was for their voltage only “120V ac” (was the make sencore or something).
    I do a little repair work ” as a hobby mostly) and i have a nice 30V 10A dc power supply but nothing for the mains side but i do use an isolation transformer.

    Anyway Merry Christmas and a happy new year. Paul, London UK

  66. Hello,
    I appreciate your efforts in educating on electronics circuit design and sharing your great knowledge voluntarily . I would like to discuss with you for some of very important project development on hearing aids and looking your reply to by email .


  67. gianni


  68. gianni


  69. neil tetlow

    None of your projects contain the pcb. Where can they be obtained?

    • Hello Neil tetlow,

      Thanks a lot for visiting my site. How are you?

      Most of the circuits have PCB layouts. I have kept these circuits for a very long time, hopefully, it will benefit you.

      Thanks again

  70. kurdistani

    hi there;
    the site is perfect.

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