Soldering electronics is a delicate art. If you're just getting started learning how to solder, this handy reference chart can help you spot some common mistakes and make sure your work comes out right.
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Video: For most of us, soldering electronics means soldering on "through hole components" that are large and easy to handle. However, when machines build components, they use "surface mount components", which are much smaller. Over on YouTube, Adafruit shows off how to deal with these tougher surface mount components.
The solder fume extractor is a bit of a DIY classic, so it's no surprise that Adafruit's put together an updated guide that uses some modern components alongside a cleverly designed 3D printed case.
Video: When you need a quick charge of your phone or other device, it's easy to just connect it into any old untrusted computer or public charging station. The chance of malicious data getting through to your phone is pretty slim, but it still exists. Over on Node, they show off a way to make sure only power can get through the USB port.
If you do a lot of soldering projects, you probably have a lot of solder beads around your work area. With a few tools you can melt them down and remould them into usable solder again.