If you know how to use a hot glue gun, you will be comfortable at soldering. It just requires the proper equipment, good eyesight, and a steady hand. The best tutorial is by Adafruit here. This article will give you an overview of soldering and some ‘hot tips’ on how to master this essentials skill.
While a lot of projects can work fine plugging wires into a breadboard or even a simple twist around an LED sequin, when you need to create a more permanent connection between a wire and two components, you’ll need to solder. Soldering involves taking a special kind of metal wrapped around a meltable resin core. The metal is a 60/40 mix of tin and lead which melts at 370 degrees Fahrenheit. You use an electrical soldering iron, which is like a hot wand, to melt the solder over the joint. The end goal is to create a little ‘onion dome’ over the end of your wire, making a tight connection between the wire and component.
Soldered joints from the top. The soldering does not seep through very far.
Soldered joints from the back. You need very little solder to make a good joint, and they should not touch.
Soldering a component. The final soldered joints look like tiny onion domes.
Two components soldered together, ready to sense!