Week 2 (The bed of nails&desoldering)

In the Monday class, we continued to finish the bed of nails by studying the diagram. After we have connected the right resistors and we solder them to make them firm and solid. We also have to connect the battery clip and the audio jack connecter with connect the ground part and the signal part.

So...Here is the result :D sorry for my friend were not helping me shoot the video seriously..-_-

I am so excited that I can get successful during the first time!!!! It reflected that I can fully understand the diagram and connect the resisters correctly. I am so happy that I can finish the bed of nails finally!!!:D 

On the thursday lesson, we have learnt how to desolder the board and here is the processes: 

Week2 (the bed of nails)

In the second lesson, we will learn how to make The Bed of Nails by using more complicated skills. The result of the Bed of Nails usually will be make a sound when it had connected with the audio mixer.
First of all, we need to collect our materials accurately such as collect the right resistors.

After we have collected the right resistors and other materials, we firstly started to solder the chip holder with the wires. 

It is hard to solder because the chip holder is quite small and we cant solder each wire together so that I think that this can highly train our soldering skills.:P 

We were then connected the nails with a plank by using a hammer and then we connected the chip holder and the board and formed a "spider" shape. 

We have to connect the various resistors by studying the schematic diagram. I must claim that it is quite difficult to understand the whole diagram and we non-stop to ask for Kenny's help. We have spent around one hours to understand the diagram and finish the board completely. 

I hope it's right.... we need to wait until next monday to finish our final product. ....

My first lesson 

In the first lesson, I have learnt how to set the LED circuit on a breadboard. At the beginning, we need to use the positive pole and the negative pole of the battery to connect with the positive and negative pole on the breadboard. We will then use a green wire horizontally to let the electric current passes through and connect to the resistor. There are three resistors in this lesson and both of them have their own values which are: 

The top one: 230 Ohms 5%
The middle one: 1M Ohms 5%
The bottom one: 470 Ohms 5%

We add the switch and the light bulb horizontally and the electric current will pass through the red wire to go back to the negative pole of the battery vertically. It finally formed a circuit making the light bulb to light up.

I found out that the resistor on the bottom (yellow, violet, brown, gold) is the best resistor to use in this circuit and it will make the light bulb to light up successfully.