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Topic: Incorporating Illuminated Toggle Switches (Read 1 time) previous topic - next topic



i'm building a project using an arduino uno to control MAX/MSP. One of the things that i'm doing is using a series of toggle switches to operate switches and send bangs within MAX. The toggle switches I have are illuminated ones but they need 12v to light them up and the 5v fed from the arduino isn't enough. Is there a way of lighting them without damaging my arduino? If i had a separate 12v supply connected up to the switch would it go straight to ground or would it go through to the arduino digital input pin?




If you want the lights under the arduino control then you have to have a transistor to switch the 12v supply just like a motor in this:-

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