Reflection essay of paper circuits

Designing: 1. learn to fold paper to connect the circuit; the AL stript cannot be cut into parts. 2. First three simple circuits just follow the tutorial. 3. Button circuit has a button part, and I design as another paper which has a vertical circuit stick on one side of button part. When you press down the paper, the circuit will connect. Blink circuit is the same way, but putting 3 same vertical circuit on the button, when you pull the button, the light will blink. 4. pull circuit needs a pull tag. I cut a line between the circuit and make a pull tag which fits the line. Then making three horizontal circuit. When you pull the tag, and the circuit will connect.

Calculating: 1. Battery capacity: 80 maph 2. one LED current: 10 ma 3. every circuit except 2nd one I have 1 LED, so battery life is Battery capacity/ Current = 8h, the second circuit I have 2 LEDs, so battery life= 4h

Soldering: Soldering is more difficult to do on my own than looking at other people doing that. At first, I found it pretty easy to just melt and solder on the circuit. However, when I began soldering, I found the material could not be easily melt because of the wrong position. It should be at the flat part of head. Then I found the LED could not fix firmly when I started to solder. I soldered, the LED moved. From this soldering experience, I learn I need to take everything seriously, because everything is not as easy as it looks.