Hey guys,
I'm currently installing a mini pc into a car. My problem is that I do not want to have to press the power button to turn it in and out of sleep mode. From what I can gather a 555 controlling a transistor or replace the power button seems to be the go. when the ignition is turned on I want to use a constant 12v to send a .5 second pulse to simulate a press of the power button on the pc, and when to voltage returns to 0v send another pulse to simulate the press again. I am able to have constant 12v power supply regardless of ignition position. I am starting this thread because I am brand new to 555s and need all the help I can get. mono/bistable? what pins do what and am i on the right track? also setting up the circuit. any help is much appreciated.
I'm currently installing a mini pc into a car. My problem is that I do not want to have to press the power button to turn it in and out of sleep mode. From what I can gather a 555 controlling a transistor or replace the power button seems to be the go. when the ignition is turned on I want to use a constant 12v to send a .5 second pulse to simulate a press of the power button on the pc, and when to voltage returns to 0v send another pulse to simulate the press again. I am able to have constant 12v power supply regardless of ignition position. I am starting this thread because I am brand new to 555s and need all the help I can get. mono/bistable? what pins do what and am i on the right track? also setting up the circuit. any help is much appreciated.