How to wire a 3-pin rocker switch with LED to Arduino power pin?

Projects General Guidance
1

Hi everyone, I'm new to electronics and Arduino.

I'm using 61.5V batteries to power the Arduino. The 61.5 batteries is connected to the Vin pin of the Arduino.

Now when i want to turn on/off the Arduino, I just plug/unplug the wire to the Vin pin which is not convenient. I want to know if there is a simple approach to turn on/off the Arduino by a hardware switch?

I did some research and bought this rocker switch. How can I wire it?

Thank everyone! :slight_smile:

2

Do you have a soldering iron?

3

aarg:
Do you have a soldering iron?

Yes

4

samcheng92:
I'm using 61.5V batteries to power the Arduino. The 61.5 batteries is connected to the Vin pin of the Arduino.

Now when i want to turn on/off the Arduino, I just plug/unplug the wire to the Vin pin which is not convenient. I want to know if there is a simple approach to turn on/off the Arduino by a hardware switch?

How do you switch a light off in your house?

If it's wired correctly,
live (120/230) -> switch -> light -> neutral
Same for Arduino
live (9V) -> switch -> Arduino -> GND

So just put the switch between the (positive side of the) 9V and the Arduino Vin.

5

sterretje:
How do you switch a light off in your house?

If it's wired correctly,
live (120/230) -> switch -> light -> neutral
Same for Arduino
live (9V) -> switch -> Arduino -> GND

So just put the switch between the (positive side of the) 9V and the Arduino Vin.

I thought this is correct but I just read other threads mentioning MOSFET and relay, etc.
So I don't know if this is the correct approach. Thanks!

6

Hi! I have bought the rocker switch with 12V DC config..

Now I need help to wire it correctly..Anyone can help me?

7

If you have a multimeter, measure the contacts in both positions. The center contact is probably 'common', one of the other ones 'normally open' (NO) and the last one 'normally closed' (NC).

               -----o normally connected
              /
             /
common -----+


               -----o normally open

               
OTHER POSITION

               -----o normally connected


common -----+
             \
              \
               -----o normally open

If that is the case:
connect center pin to your battery
connect one of the other pins to Vin
test (e.g. run the blink sketch)

Note: the light might not work; saves you battery power :wink: