Here's my first lab. 
I was pretty psyched that I fried a couple LED's while trying to add the pot to the circuit. I knew I should have kept the 220-Ohm resistor, but watching the green LED turn that nasty shade of red was too much to resist (sorry, bad joke).
I also jumped back from the work bench when I shorted out the pot the first time I tried it. I forgot that the center pin is the scrubber and not ground.
-chris
Here's my first attempt at the first lab.
It was a big mess, because I was just trying to understand it all. There was a really good vibe in the lab that afternoon- at any given time there were at least half a dozen of us all sitting around, exclaiming "It works!" or "Augh!" or "Ouch!" as something got fried. I fried a bunch of my leds too. Anyway, I went back to the lab later to clean it up.
This one is much nicer looking, I think. I think I even understood what I did too. At first I had two of my wires switched around, and my resistors were getting really hot. Luckily, Carlyn happened by and pointed out my problem. Hot resistor or regulator equals bad! I also learned that if you go to the lab at 10 on a Monday morning, it will be completely empty. More photos on Flickr -Lisa
Rebecca - Got some great tips from Todd in the lab about a basic board setup and capacitors. Also appreciated his description of electricity as a gelatinous mass that gets pushed along by the current. Photos and more notes on my journal page...
Here's my motley attempt:
I was quite brilliant in that i reversed the color order for my DC input. Also, had a great time trying to solder with a tip that wouldnt tin (after a couple beers). Took me about 30 mintutes to figure out that i should just use another iron. More badly lit images on my journal... - Alex
Pcomp strange experience #1: The computer store had no more starter kits (I figured I would "take the easy way out"). So I was left to sort through "parts" on my own. Somehow they didn't exactly resemble what I remembered.
Pcomp revelation #1: Wire stripping is very difficult. My personal approach- hold one end of wire with one wire stripper and srip other end with different wire stripper. (people who saw me do this laughed- I assumed they were second year) There must be an easier way to do this but if so I have yet to figure it out.
Pcomp stupid experience #1:I thought I knew how to solder (sp??). I have done it before I swear....so why isn't it working #@$$#@!!!!
Update: okay...someone showed me how to use a wire cutter...I get it now and feel rather stupid and would like to erase the line above but won't because its part of the "process" I guess.
still don't understand why the soldering gun won't melt anything or make it hot (2nd try)And yes, I did plug it in.
This is very exciting- I actually got the LED light to light up. I even managed to connect the switch correctly and the switch works! The problems began when I tried to connect multiple LED lights. For some reason they would only light up when they were parralell to eachother on the board. I managed to ge three LED's to light up but I noticed that they were getting very hot when the circuit was on. Also, the light appeared dimmer then when only one LED was used. I used the formula stated in class to calculate resistence but I obviously didn't do something right. Also, when I tried to utilize the flex sensor nothing happened at all. I don't think I really understand the flex sensor
Pictures to follow shortly.
-Catherine
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- Rolf:
This breadboard contain different setups:
01) Transformer
a) Input: 120VAC; 60Hz; 22W
b) Output: 12VDC 1000mA
02) Switch
03) Capacitor 10uF (micro ferret - smooth out current)
04) Regulator 5V
05) Capacitor 1uF (micro ferret)
06) 2 LEDs?? in series with 2 fixed resistors 220-ohm
07) 5 LEDs?? in parallel with 2 fixed resistors 220-ohm
08) Photocell, 1 LED, 1 yellow LED, and 1 resistor 220-ohm
09) 10K-ohm potentiometer, 1 LED, and 1 resist
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world of electronics : min
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Jury Hahn