I have 12-24v sensors.

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1

Hello,

I have 12-24v sensors, as I know i can't put them to digitals.

How can i use these sensors to arduino board?

Should i have to buy something like a to convert 24v to 5v?

Any ideas?

Thanks.

2

You can reduce 24v signals to 5v signals by using two resistors as a voltage divider. You want to divide the voltage by about 5 so you need two resistors of value x and about 4x. The input pin is connected to ground through the 'x' resistor and the sensor is connected to the input pin through the '4x' resistor. The standard 10% resistor values of 1.2k and 4.7k will work and give an output voltage around 4.9v.

3

Thanks for information.

From where i can get these resistors, maybe you can include any link to buy ?

Thanks for your reply :slight_smile:

4

control123:
Hello,

I have 12-24v sensors, as I know i can't put them to digitals.

How can i use these sensors to arduino board?

Should i have to buy something like a to convert 24v to 5v?

Any ideas?

Thanks.

Can you provide a link to your specific sensors? There is just too much room for misidentifying what you actually might have to give good feedback.

Lefty

5

control123:
From where i can get these resistors, maybe you can include any link to buy ?

You can order them from DigiKey.com if you don't have any electronics parts stores like Radio Shack near you:

1.2k

4.7k