A regular button and an ordinary LED have their own functions, but this LED - illuminated pushbutton is an amazing blend of the two! It's a medium - sized button, conveniently large for easy pressing without being overly big to disrupt your project panel. Inside the black plastic body, there's a built - in LED that can be controlled independently of the switch action, either for indication or just for a great look.
This button comes with two contacts for the button itself and two for the LED, marked + and - respectively. The forward voltage of the LED is around 2.2V. Just like with any other LED, when connecting it to a 3V or higher power supply, you should use a 220 to 1000 - ohm resistor in series.
This particular button has a red body and LED and is momentary and normally open. Its two switch contacts are not connected by default. When you press the button, they'll connect temporarily until you release it. The LED is separate from the button, allowing you to customize its lighting - it can light up when pressed, stay lit when not pressed, or be always on.
Using this 16mm red momentary illuminated pushbutton is a breeze. First, identify the two button contacts and the two LED contacts marked + and -. When you connect it to your power supply, remember to add a 220 to 1000 - ohm resistor in series with the LED if your power supply is 3V or higher. This will protect the LED from getting damaged.
When you want to use the button function, just press it. The two switch contacts will connect temporarily and then disconnect when you release the button. You can control the LED however you like. It can light up when the button is pressed, stay on all the time, or even light up when the button is not pressed.
For maintenance, keep the button clean. You can use a soft, dry cloth to wipe it. Avoid getting it wet or exposing it to extreme temperatures. If you notice any issues with the button or the LED, check the connections first to make sure everything is properly attached.
