Soldering PCB

After finish with a PCB etching. Next step is I do a soldering the component to a PCB. There is several equipment to do a soldering :

1) Soldering gun
2) Rosin core solder
3) Sponge

Preparing To Solder

Tinning The Soldering Tip :

Before use, a new soldering tip, or one that is very dirty, must be tinned. "Tinning" is the process of coating a soldering tip with a thin coat of solder. This aids in heat transfer between the tip and the component you are soldering, and also gives the solder a base from which to flow from.

Step 1 : Warm Up The Iron

Warm up the soldering iron or gun thoroughly. Make sure that it has fully come to temperature because you are about to melt a lot of solder on it. This is especially important if the iron is new because it may have been packed with some kind of coating to prevent corrosion.

Step 2 : Prepare A Little Space

While the soldering iron is warming up, prepare a little space to work. Moisten a little sponge and place it in the base of your soldering iron stand or in a dish close by. Lay down a piece of cardboard in case you drip solder (you probably will) and make sure you have room to work comfortably.

Step 3 : Thoroughly Coat The Tip In Solder

Thoroughly coat the soldering tip in solder. It is very important to cover the entire tip. You will use a considerable amount of solder during this process and it will drip, so be ready. If you leave any part of the tip uncovered it will tend to collect flux residue and will not conduct heat very well, so run the solder up and down the tip and completely around it to totally cover it in molten solder.

My project picture after finish soldering the equipment :

Soldering the PV :

Back view of my Main circuit :

Back view of my Sensor voltage circuit for PV1, PV2 and Battery

Infront view of my circuit project:

Infront view of my main circuit:

Main view of my Sensor voltage circuit for PV1, PV2 and Battery