This USB LED torch is an easy project for beginners in electronics and requires some soldering. The torch can be used as a conventional torch or an emergency light during mains power failure.
It can be powered from any USB host port. The image below shows a USB power pack that is sold as a solution for charging USB devices on the go. If you already have a USB power pack, the USB torch can be built for very little cost and carried with you wherever you take your power pack.
USB Battery Power Pack and LED Torch
The torch is shown below powered on.
USB LED Torch Powered by USB Battery Pack / Charger
The article on how to build the torch includes a circuit diagram and parts list.
A permanent circuit can be built on stripboard. A dedicated printed circuit board will not be needed when using stripboard. Components are soldered onto the stripboard and connected together by the tracks under the stripboard and wires on top. Tracks can be broken where needed using a drill bit.
A 555 LED Flasher Circuit Built on Stripboard
This article shows how to solder wires to a small loudspeaker so that it can be easily plugged into an electronic breadboard and used in various breadboard projects.
This article shows beginners how to start soldering. The example in the article shows how to solder a pin header to an LCD display in order to be able to plug the LCD into a breadboard.