| ??? 01/12/07 12:48 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#130716 - basics Responding to: ???'s previous message |
Somehow I get the feeling you need some more knowledge on basic electronics, starting with Ohm's law...
Microcontrollers, although programmable, are more than a computer and it it takes more than a program(mer) to develop a working circuit. And no I have nothing against software developpers...It's just that in the microcontroller case, software is only part of the story. You cannot assume that by "tying" things together you will end up with something that works. So try to get an understanding of transistors, logic gates and their internals. Once you're comfortable playing with transistors and such to make a led light up, without destroying transistors, then try again to develop your hardware. Untill then the best way to see if a port pin is high or low would be a Digital Multimeter (DMM). It's a less destructive way of making your ports visible... So, if a led doesn't work, get rid of the led and use a DMM to verify what is happening. regards Patrick |
