With simple and easily accessible tools, including a USB port, 4 AA batteries, a battery holder, a 7805 IC chip (for voltage regulation), and a microUSB cable, you can create a portable phone charger for less than VND 100,000. While it may not be the most compact solution, this DIY charger can be a lifesaver when you don’t have access to a power outlet for your standard charger.
One of the most beloved features of smartphones is their music-playing capability. However, the built-in speakers often don’t deliver satisfactory volume levels. If you don’t have headphones or external speakers handy, you can craft a temporary solution using two disposable cups and a piece of cardboard. Alternatively, you can substitute the cups with similarly shaped items like cut-open cans or plastic bottles…
Are you a movie buff who wishes their smartphone had a bigger screen? Consider building your own mini projector! With readily available materials like a magnifying glass (or similar lens), a cardboard box, glue, and a bit of handiness, you can craft a projector that enlarges your phone’s display in under 30 minutes.
Virtual reality is an emerging technology that is gaining traction, yet many people are unable to experience it due to the high cost of VR headsets. Google Cardboard offers the most affordable option (under VND 100,000), but you can also make your own using cardboard and two lenses. With some craftsmanship, you can have your very own VR glasses for watching movies and playing games in about half an hour.
The Pyramid Hologram, a multi-dimensional optical illusion that creates floating 3D images, has captivated audiences in various fields, especially advertising and the arts. You can make your own image projector using old CD cases, glue, scissors, and your smartphone as the display.
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