20 DIY Electronics That Worked Against All Odds

Electrical fixes are seriously no joke. Being able to open up a device and look at wires and circuit boards and determine what it needs to be fixed is a skill very few people in this world have. But there is another group of people who do it just for fun. These people build and create their own electronic creations for their own benefit, and it’s truly amazing. Whether it’s creating a box that tells you when someone’s home, or an automatic fan to filter your workshop, these skills are worth appreciating. Here are 20 DIY electronics that you need to see.

1. This guy was tired of unplugging his speakers for headphones on zoom meetings, so he designed this audio switch.

Close-up of an audio setup featuring a red toggle switch connected to two black modular plugs and a silver audio connector. The device rests on a wooden surface with various cables extending outwards.
u/jimheaney/via reddit

2. The coding for this E-paper weather display must be intense.

A digital weather display shows the forecast for Raleigh, North Carolina, on Saturday, January 28. It indicates a temperature of 59°F with a cloudy sky icon, a weekly forecast, sunrise/sunset times, and a temperature graph, all on a wooden stand.
u/unblended_melon/via reddit

3. He was tired of buying compressed air.

A yellow battery-powered tool modified with an attached small fan on top. The setup is placed on a cluttered desk with various items, including a camera, a monitor, and a small tool set in the background.
u/divzro/via reddit

4. He left his charger at work so he had to improvise.

A close-up of a laptop with cables connected to USB ports. The bottom part is a thermal image showing heat levels from the ports, with temperatures labeled 26.8°C, 79.6°C, and 39.9°C. The ports appear as hot spots in bright colors.
u/rl_95/via reddit

5. When your drill motor dies, it becomes a portable PSU.

A hand holding a custom-made power drill with a digital display showing "20.3V" and "0.00". The drill is 18V lithium ion powered and has wires and modifications visible. It is held over a patterned carpet.
u/quigglebuffin/via reddit

6. What can you do with these old headphones with an AUX jack, make a portable charger.

A collage showing six images of a square white Apple-branded accessory with a rounded, glossy design. It includes earbuds in a plastic case, a charging cable, and the device under soft blue lighting on a wood-patterned surface.
u/feintrip/via reddit

7. Don’t buy a new E-bike battery, just wire a bunch of mini batteries together.

A cluster of connected cylindrical batteries with red and yellow wires arranged on a cluttered workbench. Tools, wires, and equipment surround the battery pack, along with a roll of yellow tape and a pair of pliers.
u/thedefibulator/via reddit

8. Could you build a ChatGPT voice-activated smartwatch?

A person wearing a wrist-mounted device featuring a small screen displaying the text "Question Listening...". There are several buttons and a glowing blue light on the gadget, with the wearer dressed in a grey and black sleeve.
u/frumtha/via reddit

9. Yeah, we’ll just leave it to the pros and buy a CPU.

A complex breadboard project with numerous electronic components, wires, and LED lights. Labels like "Lock," "ALU," and "Program" are visible. A digital display shows "283." Papers with diagrams are placed nearby.
u/amtech_official/via reddit

10. Building your own amp gives some serious perspective to how intense building electronics is.

Overhead view of the internal circuitry of an amplifier. The metal chassis displays various electronic components such as capacitors, resistors, and wires. The setup is neatly organized, showcasing a complex and intricate design.
u/molwams/via reddit

11. A DIY MP3 player, because why not?

A small electronic circuit board featuring a memory card slot labeled MP3-TF-16P. It includes three red buttons labeled "PREV/VOL+", "PAUSE/PLAY", and "NEXT/VOL-".
u/watt_the_farad/via reddit

12. It isn’t a magnificent soldering station, but it’s a soldering station.

A soldering workstation sits on a wooden surface, featuring a soldering iron with a digital station, a black fume extractor, a circuit board holder with components, and a decorative statue resembling a creature with an open mouth nearby.
via reddit

13. This is a ping pong LED clock.

An LED display shows "1989" in red, pink, and purple lights in the top half. The bottom half displays "2021" in vibrant multicolors on a frame tilted at an angle, positioned near a window.
u/j_pnathan/via reddit

14. Imagine being able to make your own RC car.

A person holds a small DIY car made from cardboard, with visible wires, a battery, and a small motor. The car is placed on a green cutting mat, and the wheels are made of round discs.
u/prabeen1/via reddit

15. We’ve seen a lot of amazing things, but a DIY 3D printer takes the cake.

A homemade 3D printer with blue and wooden structural components is set up in a room with a tile floor and wooden windows. Various wires and electronic parts are visible on the printer.
u/manmeetstec/via reddit

16. You know what to do with spare electronics, make an action figure.

A small robot figure with a glowing red LED head and a yellow LED on its arm stands on a table. Smoke surrounds the robot, with a computer monitor displaying a blue circuit board design in the background.
u/heathenhacks/via reddit

17. He built an automated irrigation system.

A person holds a smartphone displaying a smart irrigation app next to a basil plant. The app shows statistics and preferences for watering, while a red irrigation sensor is visible in the soil.
u/paddyhallek/via reddit

18. This device automatically turns on his wood shop air filter when it hears a saw.

An orange control box with a transparent cover displays electronic components and wires. It features a green button for power on and a red button for power off. A small screen shows dynamic text and green LED lights are illuminated inside.
u/atomicdairy/via reddit

19. This box shows who’s home based on the distance their phone is from it.

A wooden home status board mounted on a red wall displays the question "Who's Home?" with a blue digital screen showing the last seen times of different individuals, indicated by buttons labeled A, B, C, and D.
u/cowsrock1/via reddit

20. His girlfriend got a hold of his soldering sponge.

A hand holding a small, textured tile with a drawing of a smiling cartoon character in a white shirt and red tie. The tile is painted yellow with the character's face outlined in black with large blue eyes.
u/willparry117/via reddit