QuinLED-Quad Soldering guide
The QuinLED-Quad was designed with hand soldering in mind and although you can use a hot air soldering gun while soldering it, it’s perfectly doable using a normal soldering iron.
If you have all the components you need to build a QuinLED-Quad, take a look at the following video to see how you can solder it together the easiest.
Just a word of extra warning because I didn’t make it 100% clear in the video:
Do NOT power up the board with the ESP32 on there before setting the DC-DC regulator to 5v!