Wednesday, February 29, 2012


Hey.. I am back! The news is here:

1. Got into a college class finally!
- the class is a astronomy class
- I am in chapter 14( we skip chapters)
2. Got into a spelling bee, science bee, and vocabulary bee
- tell you how the science and vocabulary works later!
3. Got into a chemistry class

Ok.. So that's most of the news..

Thursday, February 9, 2012

(for Arduino Beginners)Arduino problem with DC motor in sparkfun inventor's kit


I noticed that somehow Sparkfun inventor's kit gives two types of transistors. I noticed this when i was doing a project with DC motors and Arduino. It wants us to use P2N2222AG (actually marked P2N222A18 in my kit) and one of them was marked saying that, the other says nonsense! The one marked is the one you should use, not the one with the nonsense, or then perhaps you might spend 1-3 hours just why it isn't working! When it works, it is hard to see but gives a buzzing sound. IF it still dosen't work, go here:

Hope u have fun!