Contents
How to turn off led when the switch is off?
I am also guessing that you want the LED to turn ON when the switch is OFF. Here’s one way to do it:- When SW1 is off, MOSFET M1 receives +12V on its Gate via R2. This causes the FET to turn on and light the LED. When SW1 is on it applies 0V to the Gate so the FET turns off.
Why does my LED light not turn on?
Check for correct wiring. Hot and neutral wires should never touch Bad Pin Connection – If your LED strip light fails to turn on at all, then check your pin connections. Most likely, the pin is not inserted correctly. In rare cases, the pin is faulty.
What causes the led to turn off when SW1 is on?
This causes the FET to turn on and light the LED. When SW1 is on it applies 0V to the Gate so the FET turns off. When the switch is on a small current of 12V/100k = 120uA flows through R2.
The initial state of the LED is off but if you want to be on you have to change int stateLED = HIGH; I had some problems initially with the code because the LED was not turning ON or OFF as I desired and discovered that there was a problem with debounce.
What happens when a switch is closed on a transistor?
When the switch is closed, base current starts flowing through the transistor and then drives into saturation, which results in LED to turn ON. Resistors are placed to limit the currents through the base and LED. It is also possible to vary the intensity of LED by varying the resistance in the base current path. Transistor to Operate the Relay
Can you wire two on / off switches for LEDs?
You can use two of our on/off/on switches, and wire them like this: I hope this helps you with your next LED lighting project, make sure to check out the great variety of switches, rocker switches, toggle switches we have to offer.
How can I control two light switches at the same time?
1. Choose the two Klever Switches that will control the same lights 2. Turn OFF your home’s circuit breakers and if you have metallic wall-boxes, place a strip of electrical tape over the screws on the side of your Klever Switch before turning the circuit breakers back ON.
What does a three way light switch do?
A three-way switch is a type of light switch that allows you to control a light or other electrical fixture from two different locations in a room. Three-way switches are always used in pairs and include special wiring connections. What is the Kleverness three-way switch feature and how is it different?
Can a 12vac light switch be switched to led?
In order to switch to LEDs, you will need to find a way to switch that 12VAC to direct current and output a steady and safe current to your LED replacement. (we have just what you need!) Why is 12VAC used so much in outdoor lighting?
Do you need 12vac transformer for LED lighting?
If you already have an old fixture than it most likely will have a 12VAC transformer. In order to switch to LEDs, you will need to find a way to switch that 12VAC to direct current and output a steady and safe current to your LED replacement. (we have just what you need!)