12 Best DIY Electronics Projects For Geeks

Do It Yourself DIY is a process of building or repairing anything without the help of experts. It includes use of raw materials and spare parts to invent a new working model. Research also proves that DIY is the best method to teach anything to the students. There are numerous things that you can make yourself. You can also build many mind blowing gadgets and projects using a mere of knowledge in electronics. The following list features 12 best DIY electronics projects for students. Some of the following projects need an expert’s advice and detailed knowledge.

12. Rechargeable Flash Light

Rechargeable Flash Light

This flashlight is a unique project because it uses capacitors instead of standard batteries. You can use capacitors from spare motherboards. The above flashlight has 40 capacitors of 1000 uf each and a stepper motor with two 220 ohm registers and cardboard. The capacitors are also used to store charge and if you use more capacitors, the flashlight will stay glowing for longer.

11. Battery Made of Spare Change

Battery Made of Spare Change

This kind of battery was first invented by Alessandro Volta in the 1800s. It is now known as the Voltaic Pile. You can use only US pennies that are dated after 1982 because they are made up of 98% zinc which is a good source of electrical conductivity. One single cell has zinc on the bottom, a copper piece on the top separated by a paper that has been soaked in electrolyte. A single cell can produce 0.6 volts and 700 mA. A series of such batteries can power a small calculator or an LED bulb.

Read: 15 Popular Technology Myths & Misconceptions You Must Know

10. Smartphone Projector

Smartphone Projector

Smartphone projector is a very easy project and everyone can make it within 20 minutes. You will need only household items including a cardboard box, tape and a magnifying glass. It is based on a simple process to pass the light of the phone through the magnifying glass and projected onto the wall. It doesn’t give you theater like quality but it will be more than good.

9. Solar Radio

Solar Radio

Solar Radio could be a useful device during any emergency conditions. You can also call it an emergency solar radio. All you need is one PCB of FM radio, small piece of solar panel and a diode. This cool DIY project can cost you only $3. Follow the link for step by step guide.

8. Water Battery

Water Battery

This project could be a fun way to teach kids a unique method to produce electricity. Water battery is also known as the galvanic cell. All you need is copper sulphate and zinc sulphate mixed with water in different bottles and connected by a clamp cable. Each set of six bottles can produce 12 volts and it can also charge a smartphone for a limited period of time.

7. Hydrogen Fuel Cell

Hydrogen Fuel Cell

Hydrogen Fuel Cell is made by the process of broken down of water into Hydrogen and Oxygen using electrolysis. After the power supply is switched off, both the elements recombine which creates energy. Its major cost depends on the platinum coated nickel wire otherwise this project can be made for free.

6. Earthquake Detector

Earthquake Detector

Most of the earthquakes are mysterious and many people don’t even feel it. This is a project for people having deep knowledge in electronics concept. You need two OpAms, relay, batteries, buzzer, registers, magnet and a Potentiometer. Earthquake detector contains an LED light that blinks and a piezoelectric buzzer that makes a sound when it detects the movement of the Earth.

Read: 10 Largest Earthquakes Ever Recorded in the World

5. FM Transmitter

FM Transmitter

This is a good DIY project for amateurs who want to start electronics from beginning. FM Transmitter allows you to transmit as well as receive the radio signal on frequency modulator band. It is also known as radio frequency modulator. You can also transmit signals by connecting speakers using audio jack. The range of the signal depends on the value of capacitors and registers.

4. Microbial Fuel Cell

Microbial Fuel Cell

Microbial Fuel Cell is a concept to produce electrons from the bacteria in mud. Electrons mean electricity. Some bacteria like geobacter produce electrons during the cellular digestion process. This is a great project to learn the scientific concept behind the microbial cells and a renewable energy source. This process also helps to decompose all the feces of fishes and keep the water clean.

3. Increase Your WiFi’s Range

Increase Your WiFi's Range

There are numerous ways present on the internet on how to extend your WiFi’s signal. One of the easiest and cheapest ways is using aluminium tins. You have to cut a tin from the upper side and another one from the bottom and join them. Make a hole in the middle and connect the antenna. This is a unidirectional antenna and you need to point its direction for the user.

2. Solar Powered Plane

Solar Powered Plane

Some students of the Texas A&M University built a portable and unmanned version of the solar powered airplane. They revealed the plane at the High School Solar Plane Competition on 25th May 2013. This project is not for newbies as you need knowledge and experience in electronics skills to do this. The link features step by step methods and presentations that will help you in making a solar powered plane for yourself.

1. Fun Flexible Watch

Fun Flexible Watch - DIY Electronics Projects

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Fun Flexible Watch is the most advanced project in this list. This is designed by a team of fifteen members from different backgrounds. They completed the prototype of the watch in the October 2014. They use a 3D printed case for the watch. It features a GPS unit, 3D accelerometer, compass, LCD screen and 500 mAh Lithium ion battery. The team is still designing the better sketch of the watch.

Written by
Varun Kumar

Varun Kumar is an experienced science and technology journalist interested in machines, AI, and space exploration. He received a Master's degree in computer science from Indraprastha University. To find out what his latest project is, feel free to directly email him at [email protected] 

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