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m.Alin
m.Alin
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How can I use a 12 voltV input on a digital arduinoArduino pin?

I am creating a controller for a 12 voltV system using an arduino unoArduino Uno microcrontroller. For the outputs I am using a relay sheildshield to switch the 12 voltV components. I have a 12 voltV toggle switch that turns on some 12 voltV components in the system and I am wantingwant to use a trigger signal off of this same switch to send to an arduinoArduino digital input. I know that the arduinoArduino can only handle 5 VoltV max. What would be the best way to step down the 12 voltsV coming off of the switch to the 5 VoltV for the input?

Thanks D.WEDIT: The system is for use in a car. Would the amperage of the car battery need to be lowered somehow as to not blow up the components?

How can I use a 12 volt input on a digital arduino pin?

I am creating a controller for a 12 volt system using an arduino uno microcrontroller. For the outputs I am using a relay sheild to switch the 12 volt components. I have a 12 volt toggle switch that turns on some 12 volt components in the system and I am wanting to use a trigger signal off of this same switch to send to an arduino digital input. I know that the arduino can only handle 5 Volt max. What would be the best way to step down the 12 volts coming off of the switch to the 5 Volt for the input?

Thanks D.W.

How can I use a 12 V input on a digital Arduino pin?

I am creating a controller for a 12 V system using an Arduino Uno microcrontroller. For the outputs I am using a relay shield to switch the 12 V components. I have a 12 V toggle switch that turns on some 12 V components in the system and I want to use a trigger signal off of this same switch to send to an Arduino digital input. I know that the Arduino can only handle 5 V max. What would be the best way to step down the 12 V coming off of the switch to the 5 V for the input?

EDIT: The system is for use in a car. Would the amperage of the car battery need to be lowered somehow as to not blow up the components?

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D.W.
D.W.
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How can I use a 12 volt input on a digital arduino pin?

I am creating a controller for a 12 volt system using an arduino uno microcrontroller. For the outputs I am using a relay sheild to switch the 12 volt components. I have a 12 volt toggle switch that turns on some 12 volt components in the system and I am wanting to use a trigger signal off of this same switch to send to an arduino digital input. I know that the arduino can only handle 5 Volt max. What would be the best way to step down the 12 volts coming off of the switch to the 5 Volt for the input?

Thanks D.W.