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Since I am liable to have a lot of these, I figure it is best to just consolidate them all into one thread. I think I am fairly competent in C++, for desktop, but am new to embedded. My electronic knowledge is very basic, at best. Most of my questions will most likely concern the architectural, or electronic, elements of the msp430g2553 in general, since that is what I am working with, although they could be more general, or involve code, as I learn more. I am currently reading MSP430 Microcontroller Basics . If you are familiar with the book , you will know it involves a different chip and was probably written before the Launchpad came out(?). I am definitely not using the same board anyway. Instead of trying to use the on-board stuff, I am working with a breadboard, also. Everything else aside, this means that is not possible for me to just copy the code and see how it works. This brings me to stupid question #1. The second program involved using a button to turn the LED on/off. I figured out how to enable the internal pull up/pull down resistor, but did not find anything about how to set it to one or the other. Since what I did worked, is it safe to assume that the chip is smart enough to figure out witch one you want?