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Metal button with a built-in diameter of 16mm. This button has an LED illuminated ring, which works on a separate circuit on 12V. In addition to the 2 LED connections, this button has 3 contact points, NO, Common and NC. The circuit remains switched on as long as the button is pressed. When the button is released, the circuit is also closed again (momentary). This button is suitable for a maximum current of 3A with a voltage of 250VAC.
QAnoniemShould a resistor be connected in series with the LED, or is the resistor built in?ViewHide 2 answers | Answer this question
AOpencircuitThe resistor is built in, so the button can be connected directly to 12V.
AErwinThe LED has a voltage regulator, works without problems from 3.3V (I used this to also manually control Sonoff (parallel to the switch and the LED to the 3.3v of the board)
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