Simple electronic projects

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

Car Audio amplifier circuit 50W-65W

12V Car Audio amplifier circuit 50W-65W

This is a car 12V audio amplifier circuit that has high power over than 50w Using the IC TDA1562Q Philips ...
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 ...
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 50 ...
TDA2030 Bridge amplifier project 35 watts

TDA2030 Bridge amplifier circuit

This is a TDA2030 Bridge amplifier circuit diagram with PCB. You may have used this IC number. If we use ...
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 ...
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, a good preamplifier circuit. Some ...
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 LM368 ...

300W – 1200W MOSFET Amplifier for professionals only

When you need a high-power MOSFET amplifier. For use in applications such as a concert, theater, festivals, etc. This circuit ...
TDA2030 Datasheet Audio Amplifier Circuits Pinout

TDA2030 Datasheet Audio Amplifier Circuits Pinout

If you need to build the amplifier circuit for your home. The TDA2030 Audio Amplifier Circuit may be the best ...
High quality tone control circuit diagram with PCB

High quality tone control circuit diagram

If you are looking for High quality tone control circuit diagram. This may be the best choice for you. Because ...

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, ...
cheap digital time clock with alarm circuit using 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 ...
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 ...


Motor controls

LED flasher, Lighting

Understand These About Xenon Flash Circuit—Before It’s Too Late—Do you have ever seen the xenon flash? There are 3 xenon flash circuits. Although, these are easy and not more. But you may like it as a good basic teacher.

LED Flashers Circuits and Projects—See many LED flasher or Blinking LED circuits with PCB layout using transistors astable multivibrator as a low-frequency oscillator.

Simple 2 Lamp Flasher Circuit Using MOSFET—I like a Simple 2 Lamp flasher circuit using MOSFET. Also, it is an Astable Multivibrator. When you want a high-power lamp flasher. This is a better choice for you. Why?

How to Create Kids Automatic Night Light Circuit — Quickly learn transistor and LDR circuits. My children want to create a simple automatic night light circuit. It is special. Why? It will be light in the dark. This circuit uses 5 parts only and is cheap.

4011 LED Flasher

1.5V LED Flasher circuits

1.5V LED torch

High power 6 LED Flashlight

Simple High power 40 LED Flashlight

LM324 Two LED flashiner

Simple AC mains voltage indicator circuit with LED—We have many ways to indicates an AC line. A good way, the AC mains voltage indicator circuit with a LED. It may be the best choice. It saves and to be easy.

One LED flasher circuits

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.

Get Ebook: Simple Electronics Vol.4

96 thoughts on “Simple electronic projects”

  1. Respected sir,

  2. 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,

  3. dear sir/madam,

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

    regards and thanks
    swathi reddy c

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

  5. Hiiii,
    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?

  6. 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.

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

  7. 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.


  8. 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.

  9. Hi,
    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

  10. 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 .

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

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

  13. hi
      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,

  14. 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,


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

  16. 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.

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

  18. Pingback: Neethu Chandra Hot |
  19. 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

  20. 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

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

  22. 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


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

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

  25. 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

    • 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

  26. I must point out my gratitude for your generosity in support of people that really want help with this one niche. Your special dedication to passing the solution all around turned out to be definitely insightful and has usually helped people like me to reach their objectives. Your new warm and friendly publication indicates this much a person like me and much more to my colleagues. Thanks a lot; from each one of us.

  27. Hi, I think your blog might be having browser compatibility
    issues. When I look at your blog site in Firefox, it looks fine but when opening in Internet
    Explorer, it has some overlapping. I just wanted to give
    you a quick heads up! Other then that, wonderful blog!


Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.