Is my connection correct?

Hi, I'm new to this with electronics and sensors.I need a 0-5V output to the arduino Mega. This is how the data sheet says I should connect the transmitter
Skärmavbild 2024-04-10 kl. 11.47.43

this is how i've wired:

post a link to te datasheet and explain what your are trying to achieve

Where is the transducer and power supply?
Is the power supply 5V?

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@newarduinouser98 you will find that, if you continue in electronics, the universal communication tool is a schematic. Now, I understand, it's not as easy as taking a picture of your breadboard, but very few here will laboriously trace each wire in the picture to see if your wiring is correct, so you need to draw a schematic. It can be pencil-on-paper, then take a picture, but a schematic it must be. Show, with pin numbers/labels,

  • each Arduino connection
  • each sensor connection
  • all power arrangements
    No matter how simple, that's a good start.
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Thank you for, teaching me. Here is a drawing of my circuit.

Please state the complete model number for the transducer that you have, and post a link to the product page.

complete model number: 3500R700MG01B000

prduct page:https://se.rs-online.com/web/p/pressure-sensors/8968525?gb=s

I'm not sure crocodile clips are the best choice here.

Do you have any alligator clips?

a7

The power supply voltage is 7V minimum for the 0-5V sensor.

Your schematic diagram does not show the required ground connection to the Arduino. It should also be connected to sensor power supply negative.

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like this?

No, unfortunately not. But thank you!

Or am I missunderstanding? Don't want ruin any components with my bad wiring

What is the output form of the sensor? Is it current(4 ~ 20mA), voltage or ratiometric? What is the voltage? What is the sensor's exact part number?

exact part number 3500R700MG01B000. It is a voltage output 0-5V

Looks to me like the Arduino doesn't know what dialect the sensor speaks. If it's an analog sensor, most of the time you get a module or make a voltage divider (what the module does) and the +5V (typical) from the Arduino is what feeds power through the sensor. Then it samples the voltage in the middle of the voltage divider and that's goes into the analog in pin on the Arduino.

You kind of have that, but the Arduino has no connection to the sensor reference voltage.

Can you just use the Arduino +5V pin to supply the voltage to the sensor instead of the external supply? Sounds like one of the use cases for the Arduino +5V regulator to me.

It's the data sheet, that says I need a minimum supply voltage of 7V.

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Just read up on it and that idea is a nope.

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Are you sure the transducer pin numbers ar correct.
This is from the datasheet

Yes I wrote wrong, saw that later! :slight_smile: