Hello All. > I have two questions for you: > 1. Is it possible to connect LED (super bright 1mA) to port pin > without additional current limiting resistor? > 2. Is it possible to connect button between port pin and > ground while configuring this port pin as output with > high level and read its state (button pressed or not)? First of all thanks to everybody for your answers. Secondly i am not a newby in electronics and MCUs (as i think). So why i was asking this question? Lately i worked with PIC18 MCU, as you probably know it has port B with internal pull-up resistors. I use to connect buttons and LEDs to it without any resistors (of course). In Philips` datasheets i found no port schematics and decided to ask in this conference. -- Best regards, Hummel
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Re: [lpc2000] LED & Button connection
2006-05-29 by Иван Кончаловский
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